futtta / autoptimize

classes/autoptimizeImages.php

Spacing +319 added lines, -319 removed lines

@@ -3,7 +3,7 @@ 
  * Handles optimizing images.
  */
 
-if ( ! defined( 'ABSPATH' ) ) {
+if (!defined('ABSPATH')) {
     exit;
 }
 
@@ -23,17 +23,17 @@ 
      */
     protected static $instance = null;
 
-    public function __construct( array $options = array() )
+    public function __construct(array $options = array())
     {
         // If options are not provided, fetch them.
-        if ( empty( $options ) ) {
+        if (empty($options)) {
             $options = $this->fetch_options();
         }
 
-        $this->set_options( $options );
+        $this->set_options($options);
     }
 
-    public function set_options( array $options )
+    public function set_options(array $options)
     {
         $this->options = $options;
 
@@ -42,17 +42,17 @@ 
 
     public static function fetch_options()
     {
-        $value = get_option( 'autoptimize_imgopt_settings' );
-        if ( empty( $value ) ) {
+        $value = get_option('autoptimize_imgopt_settings');
+        if (empty($value)) {
             // Fallback to returning defaults when no stored option exists yet.
             $value = autoptimizeConfig::get_ao_imgopt_default_options();
         }
 
         // get service availability and add it to the options-array.
-        $value['availabilities'] = get_option( 'autoptimize_service_availablity' );
+        $value['availabilities'] = get_option('autoptimize_service_availablity');
 
-        if ( empty( $value['availabilities'] ) ) {
-            $value['availabilities'] = autoptimizeUtils::check_service_availability( true );
+        if (empty($value['availabilities'])) {
+            $value['availabilities'] = autoptimizeUtils::check_service_availability(true);
         }
 
         return $value;
@@ -65,9 +65,9 @@ 
         // and does not use/ request the availablity data (which could slow things down).
         static $imgopt_active = null;
 
-        if ( null === $imgopt_active ) {
-            $opts = get_option( 'autoptimize_imgopt_settings', '' );
-            if ( ! empty( $opts ) && is_array( $opts ) && array_key_exists( 'autoptimize_imgopt_checkbox_field_1', $opts ) && ! empty( $opts['autoptimize_imgopt_checkbox_field_1'] ) && '1' === $opts['autoptimize_imgopt_checkbox_field_1'] ) {
+        if (null === $imgopt_active) {
+            $opts = get_option('autoptimize_imgopt_settings', '');
+            if (!empty($opts) && is_array($opts) && array_key_exists('autoptimize_imgopt_checkbox_field_1', $opts) && !empty($opts['autoptimize_imgopt_checkbox_field_1']) && '1' === $opts['autoptimize_imgopt_checkbox_field_1']) {
                 $imgopt_active = true;
             } else {
                 $imgopt_active = false;
@@ -87,7 +87,7 @@ 
      */
     public static function instance()
     {
-        if ( null === self::$instance ) {
+        if (null === self::$instance) {
             self::$instance = new self();
         }
 
@@ -96,26 +96,26 @@ 
 
     public function run()
     {
-        if ( is_admin() ) {
-            add_action( 'admin_menu', array( $this, 'imgopt_admin_menu' ) );
-            add_filter( 'autoptimize_filter_settingsscreen_tabs', array( $this, 'add_imgopt_tab' ), 9 );
+        if (is_admin()) {
+            add_action('admin_menu', array($this, 'imgopt_admin_menu'));
+            add_filter('autoptimize_filter_settingsscreen_tabs', array($this, 'add_imgopt_tab'), 9);
         } else {
             $this->run_on_frontend();
         }
     }
 
     public function run_on_frontend() {
-        if ( ! $this->should_run() ) {
-            if ( $this->should_lazyload() ) {
+        if (!$this->should_run()) {
+            if ($this->should_lazyload()) {
                 add_filter(
                     'autoptimize_html_after_minify',
-                    array( $this, 'filter_lazyload_images' ),
+                    array($this, 'filter_lazyload_images'),
                     10,
                     1
                 );
                 add_action(
                     'wp_footer',
-                    array( $this, 'add_lazyload_js_footer' ),
+                    array($this, 'add_lazyload_js_footer'),
                     10,
                     0
                 );
@@ -125,39 +125,39 @@ 
 
         $active = false;
 
-        if ( apply_filters( 'autoptimize_filter_imgopt_do', true ) ) {
+        if (apply_filters('autoptimize_filter_imgopt_do', true)) {
             add_filter(
                 'autoptimize_html_after_minify',
-                array( $this, 'filter_optimize_images' ),
+                array($this, 'filter_optimize_images'),
                 10,
                 1
             );
             $active = true;
         }
 
-        if ( apply_filters( 'autoptimize_filter_imgopt_do_css', true ) ) {
+        if (apply_filters('autoptimize_filter_imgopt_do_css', true)) {
             add_filter(
                 'autoptimize_filter_base_replace_cdn',
-                array( $this, 'filter_optimize_css_images' ),
+                array($this, 'filter_optimize_css_images'),
                 10,
                 1
             );
             $active = true;
         }
 
-        if ( $active ) {
+        if ($active) {
             add_filter(
                 'autoptimize_extra_filter_tobepreconn',
-                array( $this, 'filter_preconnect_imgopt_url' ),
+                array($this, 'filter_preconnect_imgopt_url'),
                 10,
                 1
             );
         }
 
-        if ( $this->should_lazyload() ) {
+        if ($this->should_lazyload()) {
             add_action(
                 'wp_footer',
-                array( $this, 'add_lazyload_js_footer' )
+                array($this, 'add_lazyload_js_footer')
             );
         }
     }
@@ -170,8 +170,8 @@ 
     protected function should_run()
     {
         $opts              = $this->options;
-        $service_not_down  = ( 'down' !== $opts['availabilities']['extra_imgopt']['status'] );
-        $not_launch_status = ( 'launch' !== $opts['availabilities']['extra_imgopt']['status'] );
+        $service_not_down  = ('down' !== $opts['availabilities']['extra_imgopt']['status']);
+        $not_launch_status = ('launch' !== $opts['availabilities']['extra_imgopt']['status']);
 
         $do_cdn      = true;
         $_userstatus = $this->get_imgopt_provider_userstatus();
@@ -183,7 +183,7 @@ 
             $this->imgopt_active()
             && $do_cdn
             && $service_not_down
-            && ( $not_launch_status || $this->launch_ok() )
+            && ($not_launch_status || $this->launch_ok())
         ) {
             return true;
         }
@@ -194,13 +194,13 @@ 
     {
         static $imgopt_host = null;
 
-        if ( null === $imgopt_host ) {
+        if (null === $imgopt_host) {
             $imgopt_host  = 'https://cdn.shortpixel.ai/';
             $avail_imgopt = $this->options['availabilities']['extra_imgopt'];
-            if ( ! empty( $avail_imgopt ) && array_key_exists( 'hosts', $avail_imgopt ) && is_array( $avail_imgopt['hosts'] ) ) {
-                $imgopt_host = array_rand( array_flip( $avail_imgopt['hosts'] ) );
+            if (!empty($avail_imgopt) && array_key_exists('hosts', $avail_imgopt) && is_array($avail_imgopt['hosts'])) {
+                $imgopt_host = array_rand(array_flip($avail_imgopt['hosts']));
             }
-            $imgopt_host = apply_filters( 'autoptimize_filter_imgopt_host', $imgopt_host );
+            $imgopt_host = apply_filters('autoptimize_filter_imgopt_host', $imgopt_host);
         }
 
         return $imgopt_host;
@@ -215,7 +215,7 @@ 
 
     public static function get_service_url_suffix()
     {
-        $suffix = '/af/GWRGFLW109483/' . AUTOPTIMIZE_SITE_DOMAIN;
+        $suffix = '/af/GWRGFLW109483/'.AUTOPTIMIZE_SITE_DOMAIN;
 
         return $suffix;
     }
@@ -224,12 +224,12 @@ 
     {
         static $quality = null;
 
-        if ( null === $quality ) {
+        if (null === $quality) {
             $q_array = $this->get_img_quality_array();
             $setting = $this->get_img_quality_setting();
             $quality = apply_filters(
                 'autoptimize_filter_imgopt_quality',
-                'q_' . $q_array[ $setting ]
+                'q_'.$q_array[$setting]
             );
         }
 
@@ -240,7 +240,7 @@ 
     {
         static $map = null;
 
-        if ( null === $map ) {
+        if (null === $map) {
             $map = array(
                 '1' => 'lossy',
                 '2' => 'glossy',
@@ -259,12 +259,12 @@ 
     {
         static $q = null;
 
-        if ( null === $q ) {
-            if ( is_array( $this->options ) && array_key_exists( 'autoptimize_imgopt_select_field_2', $this->options ) ) {
+        if (null === $q) {
+            if (is_array($this->options) && array_key_exists('autoptimize_imgopt_select_field_2', $this->options)) {
                 $setting = $this->options['autoptimize_imgopt_select_field_2'];
             }
 
-            if ( ! isset( $setting ) || empty( $setting ) || ( '1' !== $setting && '3' !== $setting ) ) {
+            if (!isset($setting) || empty($setting) || ('1' !== $setting && '3' !== $setting)) {
                 // default image opt. value is 2 ("glossy").
                 $q = '2';
             } else {
@@ -275,10 +275,10 @@ 
         return $q;
     }
 
-    public function filter_preconnect_imgopt_url( array $in )
+    public function filter_preconnect_imgopt_url(array $in)
     {
-        $url_parts = parse_url( $this->get_imgopt_base_url() );
-        $in[]      = $url_parts['scheme'] . '://' . $url_parts['host'];
+        $url_parts = parse_url($this->get_imgopt_base_url());
+        $in[]      = $url_parts['scheme'].'://'.$url_parts['host'];
 
         return $in;
     }
@@ -291,20 +291,20 @@ 
      *
      * @return string
      */
-    private function normalize_img_url( $in )
+    private function normalize_img_url($in)
     {
         // Only parse the site url once.
         static $parsed_site_url = null;
-        if ( null === $parsed_site_url ) {
-            $parsed_site_url = parse_url( site_url() );
+        if (null === $parsed_site_url) {
+            $parsed_site_url = parse_url(site_url());
         }
 
         // get CDN domain once.
         static $cdn_domain = null;
-        if ( is_null( $cdn_domain ) ) {
-            $cdn_url = apply_filters( 'autoptimize_filter_base_cdnurl', get_option( 'autoptimize_cdn_url', '' ) );
-            if ( ! empty( $cdn_url ) ) {
-                $cdn_domain = parse_url( $cdn_url, PHP_URL_HOST );
+        if (is_null($cdn_domain)) {
+            $cdn_url = apply_filters('autoptimize_filter_base_cdnurl', get_option('autoptimize_cdn_url', ''));
+            if (!empty($cdn_url)) {
+                $cdn_domain = parse_url($cdn_url, PHP_URL_HOST);
             } else {
                 $cdn_domain = '';
             }
@@ -320,39 +320,39 @@ 
          * identical string operations).
          */
         static $cache = null;
-        if ( null === $cache ) {
+        if (null === $cache) {
             $cache = array();
         }
 
         // Do the work on cache miss only.
-        if ( ! isset( $cache[ $in ] ) ) {
+        if (!isset($cache[$in])) {
             // Default to what was given to us.
-            $result = trim( $in );
-            if ( autoptimizeUtils::is_protocol_relative( $in ) ) {
-                $result = $parsed_site_url['scheme'] . ':' . $in;
-            } elseif ( 0 === strpos( $in, '/' ) ) {
+            $result = trim($in);
+            if (autoptimizeUtils::is_protocol_relative($in)) {
+                $result = $parsed_site_url['scheme'].':'.$in;
+            } elseif (0 === strpos($in, '/')) {
                 // Root-relative...
-                $result  = $parsed_site_url['scheme'] . '://' . $parsed_site_url['host'];
+                $result  = $parsed_site_url['scheme'].'://'.$parsed_site_url['host'];
                 $result .= $in;
-            } elseif ( ! empty( $cdn_domain ) && strpos( $in, $cdn_domain ) !== 0 ) {
-                $result = str_replace( $cdn_domain, $parsed_site_url['host'], $in );
+            } elseif (!empty($cdn_domain) && strpos($in, $cdn_domain) !== 0) {
+                $result = str_replace($cdn_domain, $parsed_site_url['host'], $in);
             }
 
-            $result = apply_filters( 'autoptimize_filter_imgopt_normalized_url', $result );
+            $result = apply_filters('autoptimize_filter_imgopt_normalized_url', $result);
 
             // Store in cache.
-            $cache[ $in ] = $result;
+            $cache[$in] = $result;
         }
 
-        return $cache[ $in ];
+        return $cache[$in];
     }
 
-    public function filter_optimize_css_images( $in )
+    public function filter_optimize_css_images($in)
     {
-        $in = $this->normalize_img_url( $in );
+        $in = $this->normalize_img_url($in);
 
-        if ( $this->can_optimize_image( $in ) ) {
-            return $this->build_imgopt_url( $in, '', '' );
+        if ($this->can_optimize_image($in)) {
+            return $this->build_imgopt_url($in, '', '');
         } else {
             return $in;
         }
@@ -362,50 +362,50 @@ 
     {
         static $imgopt_base_url = null;
 
-        if ( null === $imgopt_base_url ) {
+        if (null === $imgopt_base_url) {
             $imgopt_host     = $this->get_imgopt_host();
             $quality         = $this->get_img_quality_string();
-            $ret_val         = apply_filters( 'autoptimize_filter_imgopt_wait', 'ret_img' ); // values: ret_wait, ret_img, ret_json, ret_blank.
-            $imgopt_base_url = $imgopt_host . 'client/' . $quality . ',' . $ret_val;
-            $imgopt_base_url = apply_filters( 'autoptimize_filter_imgopt_base_url', $imgopt_base_url );
+            $ret_val         = apply_filters('autoptimize_filter_imgopt_wait', 'ret_img'); // values: ret_wait, ret_img, ret_json, ret_blank.
+            $imgopt_base_url = $imgopt_host.'client/'.$quality.','.$ret_val;
+            $imgopt_base_url = apply_filters('autoptimize_filter_imgopt_base_url', $imgopt_base_url);
         }
 
         return $imgopt_base_url;
     }
 
-    private function can_optimize_image( $url )
+    private function can_optimize_image($url)
     {
         static $cdn_url      = null;
         static $nopti_images = null;
 
-        if ( null === $cdn_url ) {
+        if (null === $cdn_url) {
             $cdn_url = apply_filters(
                 'autoptimize_filter_base_cdnurl',
-                get_option( 'autoptimize_cdn_url', '' )
+                get_option('autoptimize_cdn_url', '')
             );
         }
 
-        if ( null === $nopti_images ) {
-            $nopti_images = apply_filters( 'autoptimize_filter_imgopt_noptimize', '' );
+        if (null === $nopti_images) {
+            $nopti_images = apply_filters('autoptimize_filter_imgopt_noptimize', '');
         }
 
         $site_host  = AUTOPTIMIZE_SITE_DOMAIN;
-        $url        = $this->normalize_img_url( $url );
-        $url_parsed = parse_url( $url );
+        $url        = $this->normalize_img_url($url);
+        $url_parsed = parse_url($url);
 
-        if ( array_key_exists( 'host', $url_parsed ) && $url_parsed['host'] !== $site_host && empty( $cdn_url ) ) {
+        if (array_key_exists('host', $url_parsed) && $url_parsed['host'] !== $site_host && empty($cdn_url)) {
             return false;
-        } elseif ( ! empty( $cdn_url ) && strpos( $url, $cdn_url ) === false && array_key_exists( 'host', $url_parsed ) && $url_parsed['host'] !== $site_host ) {
+        } elseif (!empty($cdn_url) && strpos($url, $cdn_url) === false && array_key_exists('host', $url_parsed) && $url_parsed['host'] !== $site_host) {
             return false;
-        } elseif ( strpos( $url, '.php' ) !== false ) {
+        } elseif (strpos($url, '.php') !== false) {
             return false;
-        } elseif ( str_ireplace( array( '.png', '.gif', '.jpg', '.jpeg', '.webp' ), '', $url_parsed['path'] ) === $url_parsed['path'] ) {
+        } elseif (str_ireplace(array('.png', '.gif', '.jpg', '.jpeg', '.webp'), '', $url_parsed['path']) === $url_parsed['path']) {
             // fixme: better check against end of string.
             return false;
-        } elseif ( ! empty( $nopti_images ) ) {
-            $nopti_images_array = array_filter( array_map( 'trim', explode( ',', $nopti_images ) ) );
-            foreach ( $nopti_images_array as $nopti_image ) {
-                if ( strpos( $url, $nopti_image ) !== false ) {
+        } elseif (!empty($nopti_images)) {
+            $nopti_images_array = array_filter(array_map('trim', explode(',', $nopti_images)));
+            foreach ($nopti_images_array as $nopti_image) {
+                if (strpos($url, $nopti_image) !== false) {
                     return false;
                 }
             }
@@ -413,13 +413,13 @@ 
         return true;
     }
 
-    private function build_imgopt_url( $orig_url, $width = 0, $height = 0 )
+    private function build_imgopt_url($orig_url, $width = 0, $height = 0)
     {
         // sanitize width and height.
-        if ( strpos( $width, '%' ) !== false ) {
+        if (strpos($width, '%') !== false) {
             $width = 0;
         }
-        if ( strpos( $height, '%' ) !== false ) {
+        if (strpos($height, '%') !== false) {
             $height = 0;
         }
         $width  = (int) $width;
@@ -433,43 +433,43 @@ 
         );
 
         // If filter modified the url, return that.
-        if ( $filtered_url !== $orig_url ) {
+        if ($filtered_url !== $orig_url) {
             return $filtered_url;
         }
 
-        $orig_url        = $this->normalize_img_url( $orig_url );
+        $orig_url        = $this->normalize_img_url($orig_url);
         $imgopt_base_url = $this->get_imgopt_base_url();
         $imgopt_size     = '';
 
-        if ( $width && 0 !== $width ) {
-            $imgopt_size = ',w_' . $width;
+        if ($width && 0 !== $width) {
+            $imgopt_size = ',w_'.$width;
         }
 
-        if ( $height && 0 !== $height ) {
-            $imgopt_size .= ',h_' . $height;
+        if ($height && 0 !== $height) {
+            $imgopt_size .= ',h_'.$height;
         }
 
-        $url = $imgopt_base_url . $imgopt_size . '/' . $orig_url;
+        $url = $imgopt_base_url.$imgopt_size.'/'.$orig_url;
 
         return $url;
     }
 
-    public function replace_data_thumbs( $matches )
+    public function replace_data_thumbs($matches)
     {
-        return $this->replace_img_callback( $matches, 150, 150 );
+        return $this->replace_img_callback($matches, 150, 150);
     }
 
-    public function replace_img_callback( $matches, $width = 0, $height = 0 )
+    public function replace_img_callback($matches, $width = 0, $height = 0)
     {
-        $_normalized_img_url = $this->normalize_img_url( $matches[1] );
-        if ( $this->can_optimize_image( $matches[1] ) ) {
-            return str_replace( $matches[1], $this->build_imgopt_url( $_normalized_img_url, $width, $height ), $matches[0] );
+        $_normalized_img_url = $this->normalize_img_url($matches[1]);
+        if ($this->can_optimize_image($matches[1])) {
+            return str_replace($matches[1], $this->build_imgopt_url($_normalized_img_url, $width, $height), $matches[0]);
         } else {
             return $matches[0];
         }
     }
 
-    public function filter_optimize_images( $in )
+    public function filter_optimize_images($in)
     {
         /*
          * potential future functional improvements:
@@ -480,7 +480,7 @@ 
         $to_replace = array();
 
         // hide noscript tags to avoid nesting noscript tags (as lazyloaded images add noscript).
-        if ( $this->should_lazyload() ) {
+        if ($this->should_lazyload()) {
             $in = autoptimizeBase::replace_contents_with_marker_if_exists(
                 'SCRIPT',
                 '<script',
@@ -490,25 +490,25 @@ 
         }
 
         // extract img tags.
-        if ( preg_match_all( '#<img[^>]*src[^>]*>#Usmi', $in, $matches ) ) {
-            foreach ( $matches[0] as $tag ) {
+        if (preg_match_all('#<img[^>]*src[^>]*>#Usmi', $in, $matches)) {
+            foreach ($matches[0] as $tag) {
                 $orig_tag = $tag;
                 $imgopt_w = '';
                 $imgopt_h = '';
 
                 // first do (data-)srcsets.
-                if ( preg_match_all( '#srcset=("|\')(.*)("|\')#Usmi', $tag, $allsrcsets, PREG_SET_ORDER ) ) {
-                    foreach ( $allsrcsets as $srcset ) {
+                if (preg_match_all('#srcset=("|\')(.*)("|\')#Usmi', $tag, $allsrcsets, PREG_SET_ORDER)) {
+                    foreach ($allsrcsets as $srcset) {
                         $srcset  = $srcset[2];
-                        $srcsets = explode( ',', $srcset );
-                        foreach ( $srcsets as $indiv_srcset ) {
-                            $indiv_srcset_parts = explode( ' ', trim( $indiv_srcset ) );
-                            if ( isset( $indiv_srcset_parts[1] ) && rtrim( $indiv_srcset_parts[1], 'w' ) !== $indiv_srcset_parts[1] ) {
-                                $imgopt_w = rtrim( $indiv_srcset_parts[1], 'w' );
+                        $srcsets = explode(',', $srcset);
+                        foreach ($srcsets as $indiv_srcset) {
+                            $indiv_srcset_parts = explode(' ', trim($indiv_srcset));
+                            if (isset($indiv_srcset_parts[1]) && rtrim($indiv_srcset_parts[1], 'w') !== $indiv_srcset_parts[1]) {
+                                $imgopt_w = rtrim($indiv_srcset_parts[1], 'w');
                             }
-                            if ( $this->can_optimize_image( $indiv_srcset_parts[0] ) ) {
-                                $imgopt_url = $this->build_imgopt_url( $indiv_srcset_parts[0], $imgopt_w, '' );
-                                $tag        = str_replace( $indiv_srcset_parts[0], $imgopt_url, $tag );
+                            if ($this->can_optimize_image($indiv_srcset_parts[0])) {
+                                $imgopt_url = $this->build_imgopt_url($indiv_srcset_parts[0], $imgopt_w, '');
+                                $tag        = str_replace($indiv_srcset_parts[0], $imgopt_url, $tag);
                             }
                         }
                     }
@@ -516,142 +516,142 @@ 
 
                 // proceed with img src.
                 // get width and height and add to $imgopt_size.
-                $_get_size = $this->get_size_from_tag( $tag );
+                $_get_size = $this->get_size_from_tag($tag);
                 $imgopt_w  = $_get_size['width'];
                 $imgopt_h  = $_get_size['height'];
 
                 // then start replacing images src.
-                if ( preg_match_all( '#src=(?:"|\')(?!data)(.*)(?:"|\')#Usmi', $tag, $urls, PREG_SET_ORDER ) ) {
-                    foreach ( $urls as $url ) {
+                if (preg_match_all('#src=(?:"|\')(?!data)(.*)(?:"|\')#Usmi', $tag, $urls, PREG_SET_ORDER)) {
+                    foreach ($urls as $url) {
                         $full_src_orig = $url[0];
                         $url           = $url[1];
-                        if ( $this->can_optimize_image( $url ) ) {
-                            $imgopt_url      = $this->build_imgopt_url( $url, $imgopt_w, $imgopt_h );
-                            $full_imgopt_src = str_replace( $url, $imgopt_url, $full_src_orig );
-                            $tag             = str_replace( $full_src_orig, $full_imgopt_src, $tag );
+                        if ($this->can_optimize_image($url)) {
+                            $imgopt_url      = $this->build_imgopt_url($url, $imgopt_w, $imgopt_h);
+                            $full_imgopt_src = str_replace($url, $imgopt_url, $full_src_orig);
+                            $tag             = str_replace($full_src_orig, $full_imgopt_src, $tag);
                         }
                     }
                 }
 
                 // do lazyload stuff.
-                if ( $this->should_lazyload( $in ) && str_ireplace( $this->get_lazyload_exclusions(), '', $tag ) === $tag ) {
-                    $tag          = $this->maybe_fix_missing_quotes( $tag );
-                    $noscript_tag = '<noscript>' . $tag . '</noscript>';
-                    $tag          = str_replace( 'srcset=', 'data-srcset=', $tag );
+                if ($this->should_lazyload($in) && str_ireplace($this->get_lazyload_exclusions(), '', $tag) === $tag) {
+                    $tag          = $this->maybe_fix_missing_quotes($tag);
+                    $noscript_tag = '<noscript>'.$tag.'</noscript>';
+                    $tag          = str_replace('srcset=', 'data-srcset=', $tag);
 
                     // add lazyload class.
-                    $tag = $this->inject_classes_in_tag( $tag, 'lazyload ' );
+                    $tag = $this->inject_classes_in_tag($tag, 'lazyload ');
 
                     // set placeholder.
-                    if ( strpos( $url, $this->get_imgopt_host() ) === 0 ) {
+                    if (strpos($url, $this->get_imgopt_host()) === 0) {
                         // if all img src have been replaced during srcset, we have to extract the
                         // origin url from the imgopt one to be able to set a lqip placeholder.
-                        $_url = substr( $url, strpos( $url, '/http' ) + 1 );
+                        $_url = substr($url, strpos($url, '/http') + 1);
                     } else {
                         $_url = $url;
                     }
-                    if ( $this->can_optimize_image( $_url ) && apply_filters( 'autoptimize_filter_imgopt_lazyload_dolqip', true ) ) {
+                    if ($this->can_optimize_image($_url) && apply_filters('autoptimize_filter_imgopt_lazyload_dolqip', true)) {
                         $lqip_w = '';
                         $lqip_h = '';
-                        if ( isset( $imgopt_w ) && ! empty( $imgopt_w ) ) {
-                            $lqip_w = ',w_' . $imgopt_w;
+                        if (isset($imgopt_w) && !empty($imgopt_w)) {
+                            $lqip_w = ',w_'.$imgopt_w;
                         }
-                        if ( isset( $imgopt_h ) && ! empty( $imgopt_h ) ) {
-                            $lqip_h = ',h_' . $imgopt_h;
+                        if (isset($imgopt_h) && !empty($imgopt_h)) {
+                            $lqip_h = ',h_'.$imgopt_h;
                         }
-                        $placeholder = $this->get_imgopt_host() . 'client/q_lqip,ret_wait' . $lqip_w . $lqip_h . '/' . $_url;
+                        $placeholder = $this->get_imgopt_host().'client/q_lqip,ret_wait'.$lqip_w.$lqip_h.'/'.$_url;
                     } else {
-                        $placeholder = $this->get_default_lazyload_placeholder( $imgopt_w, $imgopt_h );
+                        $placeholder = $this->get_default_lazyload_placeholder($imgopt_w, $imgopt_h);
                     }
-                    $placeholder = ' src=\'' . apply_filters( 'autoptimize_filter_imgopt_lazyload_placeholder', $placeholder );
+                    $placeholder = ' src=\''.apply_filters('autoptimize_filter_imgopt_lazyload_placeholder', $placeholder);
 
                     // add min-heigth off by default as it can deform images, can be enabled with filter.
                     $min_height = '';
-                    if ( apply_filters( 'autoptimize_filter_imgopt_lazyload_addminheight', false ) ) {
-                        $min_height = ' style="min-height:' . $imgopt_h . 'px;"';
+                    if (apply_filters('autoptimize_filter_imgopt_lazyload_addminheight', false)) {
+                        $min_height = ' style="min-height:'.$imgopt_h.'px;"';
                     }
 
                     // move sizes to data-sizes unless filter says no.
-                    if ( apply_filters( 'autoptimize_filter_imgopt_lazyload_move_sizes', true ) ) {
-                        $tag = str_replace( 'sizes=', 'data-sizes=', $tag );
+                    if (apply_filters('autoptimize_filter_imgopt_lazyload_move_sizes', true)) {
+                        $tag = str_replace('sizes=', 'data-sizes=', $tag);
                     }
 
                     // add noscript & placeholder.
-                    $tag = $noscript_tag . str_replace( ' src=', $min_height . $placeholder . '\' data-src=', $tag );
-                    $tag = apply_filters( 'autoptimize_filter_imgopt_lazyloaded_img', $tag );
+                    $tag = $noscript_tag.str_replace(' src=', $min_height.$placeholder.'\' data-src=', $tag);
+                    $tag = apply_filters('autoptimize_filter_imgopt_lazyloaded_img', $tag);
                 }
 
                 // add tag to array for later replacement.
-                if ( $tag !== $orig_tag ) {
-                    $to_replace[ $orig_tag ] = $tag;
+                if ($tag !== $orig_tag) {
+                    $to_replace[$orig_tag] = $tag;
                 }
             }
         }
 
         // and replace all.
-        $out = str_replace( array_keys( $to_replace ), array_values( $to_replace ), $in );
+        $out = str_replace(array_keys($to_replace), array_values($to_replace), $in);
 
         // img thumbnails in e.g. woocommerce.
-        if ( strpos( $out, 'data-thumb' ) !== false && apply_filters( 'autoptimize_filter_imgopt_datathumbs', true ) ) {
+        if (strpos($out, 'data-thumb') !== false && apply_filters('autoptimize_filter_imgopt_datathumbs', true)) {
             $out = preg_replace_callback(
                 '/\<div(?:[^>]?)\sdata-thumb\=(?:\"|\')(.+?)(?:\"|\')(?:[^>]*)?\>/s',
-                array( $this, 'replace_data_thumbs' ),
+                array($this, 'replace_data_thumbs'),
                 $out
             );
         }
 
         // background-image in inline style.
-        if ( strpos( $out, 'background-image:' ) !== false && apply_filters( 'autoptimize_filter_imgopt_backgroundimages', true ) ) {
+        if (strpos($out, 'background-image:') !== false && apply_filters('autoptimize_filter_imgopt_backgroundimages', true)) {
             $out = preg_replace_callback(
                 '/style=(?:"|\').*?background-image:\s?url\((?:"|\')?([^"\')]*)(?:"|\')?\)/',
-                array( $this, 'replace_img_callback' ),
+                array($this, 'replace_img_callback'),
                 $out
             );
         }
 
         // lazyload: restore noscript tags + lazyload picture source tags.
-        if ( $this->should_lazyload() ) {
+        if ($this->should_lazyload()) {
             $out = autoptimizeBase::restore_marked_content(
                 'SCRIPT',
                 $out
             );
 
-            $out = $this->process_picture_tag( $out, true, true );
+            $out = $this->process_picture_tag($out, true, true);
         } else {
-            $out = $this->process_picture_tag( $out, true, false );
+            $out = $this->process_picture_tag($out, true, false);
         }
 
         return $out;
     }
 
-    public function get_size_from_tag( $tag ) {
+    public function get_size_from_tag($tag) {
         // reusable function to extract widht and height from an image tag
         // enforcing a filterable maximum width and height (default 4999X4999).
         $width  = '';
         $height = '';
 
-        if ( preg_match( '#width=("|\')(.*)("|\')#Usmi', $tag, $_width ) ) {
-            if ( strpos( $_width[2], '%' ) === false ) {
+        if (preg_match('#width=("|\')(.*)("|\')#Usmi', $tag, $_width)) {
+            if (strpos($_width[2], '%') === false) {
                 $width = (int) $_width[2];
             }
         }
-        if ( preg_match( '#height=("|\')(.*)("|\')#Usmi', $tag, $_height ) ) {
-            if ( strpos( $_height[2], '%' ) === false ) {
+        if (preg_match('#height=("|\')(.*)("|\')#Usmi', $tag, $_height)) {
+            if (strpos($_height[2], '%') === false) {
                 $height = (int) $_height[2];
             }
         }
 
         // check for and enforce (filterable) max sizes.
-        $_max_width = apply_filters( 'autoptimize_filter_imgopt_max_width', 4999 );
-        if ( $width > $_max_width ) {
+        $_max_width = apply_filters('autoptimize_filter_imgopt_max_width', 4999);
+        if ($width > $_max_width) {
             $_width = $_max_width;
-            $height = $_width / $width * $height;
+            $height = $_width/$width*$height;
             $width  = $_width;
         }
-        $_max_height = apply_filters( 'autoptimize_filter_imgopt_max_height', 4999 );
-        if ( $height > $_max_height ) {
+        $_max_height = apply_filters('autoptimize_filter_imgopt_max_height', 4999);
+        if ($height > $_max_height) {
             $_height = $_max_height;
-            $width   = $_height / $height * $width;
+            $width   = $_height/$height*$width;
             $height  = $_height;
         }
 
@@ -670,18 +670,18 @@ 
         return $self->should_lazyload();
     }
 
-    public function should_lazyload( $context = '' ) {
-        if ( ! empty( $this->options['autoptimize_imgopt_checkbox_field_3'] ) ) {
+    public function should_lazyload($context = '') {
+        if (!empty($this->options['autoptimize_imgopt_checkbox_field_3'])) {
             $lazyload_return = true;
         } else {
             $lazyload_return = false;
         }
-        $lazyload_return = apply_filters( 'autoptimize_filter_imgopt_should_lazyload', $lazyload_return, $context );
+        $lazyload_return = apply_filters('autoptimize_filter_imgopt_should_lazyload', $lazyload_return, $context);
 
         return $lazyload_return;
     }
 
-    public function filter_lazyload_images( $in )
+    public function filter_lazyload_images($in)
     {
         // only used is image optimization is NOT active but lazyload is.
         $to_replace = array();
@@ -695,17 +695,17 @@ 
         );
 
         // extract img tags and add lazyload attribs.
-        if ( preg_match_all( '#<img[^>]*src[^>]*>#Usmi', $out, $matches ) ) {
-            foreach ( $matches[0] as $tag ) {
-                if ( $this->should_lazyload( $out ) ) {
-                    $to_replace[ $tag ] = $this->add_lazyload( $tag );
+        if (preg_match_all('#<img[^>]*src[^>]*>#Usmi', $out, $matches)) {
+            foreach ($matches[0] as $tag) {
+                if ($this->should_lazyload($out)) {
+                    $to_replace[$tag] = $this->add_lazyload($tag);
                 }
             }
-            $out = str_replace( array_keys( $to_replace ), array_values( $to_replace ), $out );
+            $out = str_replace(array_keys($to_replace), array_values($to_replace), $out);
         }
 
         // and also lazyload picture tag.
-        $out = $this->process_picture_tag( $out, false, true );
+        $out = $this->process_picture_tag($out, false, true);
 
         // restore noscript tags.
         $out = autoptimizeBase::restore_marked_content(
@@ -716,42 +716,42 @@ 
         return $out;
     }
 
-    public function add_lazyload( $tag ) {
+    public function add_lazyload($tag) {
         // adds actual lazyload-attributes to an image node.
-        if ( str_ireplace( $this->get_lazyload_exclusions(), '', $tag ) === $tag ) {
-            $tag = $this->maybe_fix_missing_quotes( $tag );
+        if (str_ireplace($this->get_lazyload_exclusions(), '', $tag) === $tag) {
+            $tag = $this->maybe_fix_missing_quotes($tag);
 
             // store original tag for use in noscript version.
-            $noscript_tag = '<noscript>' . $tag . '</noscript>';
+            $noscript_tag = '<noscript>'.$tag.'</noscript>';
 
             // insert lazyload class.
-            $tag = $this->inject_classes_in_tag( $tag, 'lazyload ' );
+            $tag = $this->inject_classes_in_tag($tag, 'lazyload ');
 
             // get image width & heigth for placeholder fun (and to prevent content reflow).
-            $_get_size = $this->get_size_from_tag( $tag );
+            $_get_size = $this->get_size_from_tag($tag);
             $width     = $_get_size['width'];
             $height    = $_get_size['height'];
-            if ( false === $width ) {
+            if (false === $width) {
                 $widht = 210; // default width for SVG placeholder.
             }
-            if ( false === $height ) {
-                $heigth = $width / 3 * 2; // if no height, base it on width using the 3/2 aspect ratio.
+            if (false === $height) {
+                $heigth = $width/3*2; // if no height, base it on width using the 3/2 aspect ratio.
             }
 
             // insert the actual lazyload stuff.
             // see https://css-tricks.com/preventing-content-reflow-from-lazy-loaded-images/ for great read on why we're using empty svg's.
-            $placeholder = apply_filters( 'autoptimize_filter_imgopt_lazyload_placeholder', $this->get_default_lazyload_placeholder( $width, $height ) );
-            $tag         = str_replace( ' src=', ' src=\'' . $placeholder . '\' data-src=', $tag );
-            $tag         = str_replace( ' srcset=', ' data-srcset=', $tag );
+            $placeholder = apply_filters('autoptimize_filter_imgopt_lazyload_placeholder', $this->get_default_lazyload_placeholder($width, $height));
+            $tag         = str_replace(' src=', ' src=\''.$placeholder.'\' data-src=', $tag);
+            $tag         = str_replace(' srcset=', ' data-srcset=', $tag);
 
             // move sizes to data-sizes unless filter says no.
-            if ( apply_filters( 'autoptimize_filter_imgopt_lazyload_move_sizes', true ) ) {
-                $tag = str_replace( 'sizes=', 'data-sizes=', $tag );
+            if (apply_filters('autoptimize_filter_imgopt_lazyload_move_sizes', true)) {
+                $tag = str_replace('sizes=', 'data-sizes=', $tag);
             }
 
             // add the noscript-tag from earlier.
-            $tag = $noscript_tag . $tag;
-            $tag = apply_filters( 'autoptimize_filter_imgopt_lazyloaded_img', $tag );
+            $tag = $noscript_tag.$tag;
+            $tag = apply_filters('autoptimize_filter_imgopt_lazyloaded_img', $tag);
         }
 
         return $tag;
@@ -760,20 +760,20 @@ 
     public function add_lazyload_js_footer() {
         // The JS will by default be excluded form autoptimization but this can be changed with a filter.
         $noptimize_flag = '';
-        if ( apply_filters( 'autoptimize_filter_imgopt_lazyload_js_noptimize', true ) ) {
+        if (apply_filters('autoptimize_filter_imgopt_lazyload_js_noptimize', true)) {
             $noptimize_flag = ' data-noptimize="1"';
         }
 
         // Adds lazyload CSS & JS to footer, using echo because wp_enqueue_script seems not to support pushing attributes (async).
-        echo apply_filters( 'autoptimize_filter_imgopt_lazyload_cssoutput', '<style>.lazyload,.lazyloading{opacity:0;}.lazyloaded{opacity:1;transition:opacity 300ms;}</style><noscript><style>.lazyload{display:none;}</style></noscript>' );
-        echo apply_filters( 'autoptimize_filter_imgopt_lazyload_jsconfig', '<script' . $noptimize_flag . '>window.lazySizesConfig=window.lazySizesConfig||{};window.lazySizesConfig.loadMode=1;</script>' );
-        echo '<script async' . $noptimize_flag . ' src=\'' . plugins_url( 'external/js/lazysizes.min.js', __FILE__ ) . '\'></script>';
+        echo apply_filters('autoptimize_filter_imgopt_lazyload_cssoutput', '<style>.lazyload,.lazyloading{opacity:0;}.lazyloaded{opacity:1;transition:opacity 300ms;}</style><noscript><style>.lazyload{display:none;}</style></noscript>');
+        echo apply_filters('autoptimize_filter_imgopt_lazyload_jsconfig', '<script'.$noptimize_flag.'>window.lazySizesConfig=window.lazySizesConfig||{};window.lazySizesConfig.loadMode=1;</script>');
+        echo '<script async'.$noptimize_flag.' src=\''.plugins_url('external/js/lazysizes.min.js', __FILE__).'\'></script>';
 
         // And add webp detection and loading JS.
-        if ( $this->should_webp() ) {
+        if ($this->should_webp()) {
             $_webp_detect = "function c_webp(A){var n=new Image;n.onload=function(){var e=0<n.width&&0<n.height;A(e)},n.onerror=function(){A(!1)},n.src='data:image/webp;base64,UklGRhoAAABXRUJQVlA4TA0AAAAvAAAAEAcQERGIiP4HAA=='}function s_webp(e){window.supportsWebP=e}c_webp(s_webp);";
             $_webp_load   = "document.addEventListener('lazybeforeunveil',function({target:c}){supportsWebP&&['data-src','data-srcset'].forEach(function(a){attr=c.getAttribute(a),null!==attr&&c.setAttribute(a,attr.replace(/\/client\//,'/client/to_webp,'))})});";
-            echo apply_filters( 'autoptimize_filter_imgopt_webp_js', '<script' . $noptimize_flag . '>' . $_webp_detect . $_webp_load . '</script>' );
+            echo apply_filters('autoptimize_filter_imgopt_webp_js', '<script'.$noptimize_flag.'>'.$_webp_detect.$_webp_load.'</script>');
         }
     }
 
@@ -781,47 +781,47 @@ 
         // returns array of strings that if found in an <img tag will stop the img from being lazy-loaded.
         static $exclude_lazyload_array = null;
 
-        if ( null === $exclude_lazyload_array ) {
+        if (null === $exclude_lazyload_array) {
             $options = $this->options;
 
             // set default exclusions.
-            $exclude_lazyload_array = array( 'skip-lazy', 'data-no-lazy', 'notlazy', 'data-src', 'data-srcset', 'data:image/', 'data-lazyload', 'rev-slidebg' );
+            $exclude_lazyload_array = array('skip-lazy', 'data-no-lazy', 'notlazy', 'data-src', 'data-srcset', 'data:image/', 'data-lazyload', 'rev-slidebg');
 
             // add from setting.
-            if ( array_key_exists( 'autoptimize_imgopt_text_field_5', $options ) ) {
+            if (array_key_exists('autoptimize_imgopt_text_field_5', $options)) {
                 $exclude_lazyload_option = $options['autoptimize_imgopt_text_field_5'];
-                if ( ! empty( $exclude_lazyload_option ) ) {
-                    $exclude_lazyload_array = array_merge( $exclude_lazyload_array, array_filter( array_map( 'trim', explode( ',', $options['autoptimize_imgopt_text_field_5'] ) ) ) );
+                if (!empty($exclude_lazyload_option)) {
+                    $exclude_lazyload_array = array_merge($exclude_lazyload_array, array_filter(array_map('trim', explode(',', $options['autoptimize_imgopt_text_field_5']))));
                 }
             }
 
             // and filter for developer-initiated changes.
-            $exclude_lazyload_array = apply_filters( 'autoptimize_filter_imgopt_lazyload_exclude_array', $exclude_lazyload_array );
+            $exclude_lazyload_array = apply_filters('autoptimize_filter_imgopt_lazyload_exclude_array', $exclude_lazyload_array);
         }
 
         return $exclude_lazyload_array;
     }
 
-    public function inject_classes_in_tag( $tag, $target_class ) {
-        if ( strpos( $tag, 'class=' ) !== false ) {
-            $tag = preg_replace( '/(\sclass\s?=\s?("|\'))/', '$1' . $target_class, $tag );
+    public function inject_classes_in_tag($tag, $target_class) {
+        if (strpos($tag, 'class=') !== false) {
+            $tag = preg_replace('/(\sclass\s?=\s?("|\'))/', '$1'.$target_class, $tag);
         } else {
-            $tag = str_replace( '<img ', '<img class="' . trim( $target_class ) . '" ', $tag );
+            $tag = str_replace('<img ', '<img class="'.trim($target_class).'" ', $tag);
         }
 
         return $tag;
     }
 
-    public function get_default_lazyload_placeholder( $imgopt_w, $imgopt_h ) {
-        return 'data:image/svg+xml,%3Csvg%20xmlns=%22http://www.w3.org/2000/svg%22%20viewBox=%220%200%20' . $imgopt_w . '%20' . $imgopt_h . '%22%3E%3C/svg%3E';
+    public function get_default_lazyload_placeholder($imgopt_w, $imgopt_h) {
+        return 'data:image/svg+xml,%3Csvg%20xmlns=%22http://www.w3.org/2000/svg%22%20viewBox=%220%200%20'.$imgopt_w.'%20'.$imgopt_h.'%22%3E%3C/svg%3E';
     }
 
     public function should_webp() {
         static $webp_return = null;
 
-        if ( is_null( $webp_return ) ) {
+        if (is_null($webp_return)) {
             // webp only works if imgopt and lazyload are also active.
-            if ( ! empty( $this->options['autoptimize_imgopt_checkbox_field_4'] ) && ! empty( $this->options['autoptimize_imgopt_checkbox_field_3'] ) && $this->imgopt_active() ) {
+            if (!empty($this->options['autoptimize_imgopt_checkbox_field_4']) && !empty($this->options['autoptimize_imgopt_checkbox_field_3']) && $this->imgopt_active()) {
                 $webp_return = true;
             } else {
                 $webp_return = false;
@@ -831,9 +831,9 @@ 
         return $webp_return;
     }
 
-    public function process_picture_tag( $in, $imgopt = false, $lazy = false ) {
+    public function process_picture_tag($in, $imgopt = false, $lazy = false) {
         // check if "<picture" is present and if filter allows us to process <picture>.
-        if ( strpos( $in, '<picture' ) === false || apply_filters( 'autoptimize_filter_imgopt_dopicture', true ) === false ) {
+        if (strpos($in, '<picture') === false || apply_filters('autoptimize_filter_imgopt_dopicture', true) === false) {
             return $in;
         }
 
@@ -841,36 +841,36 @@ 
         $to_replace_pict = array();
 
         // extract and process each picture-node.
-        preg_match_all( '#<picture.*</picture>#Usmi', $in, $_pictures, PREG_SET_ORDER );
-        foreach ( $_pictures as $_picture ) {
-            $_picture = $this->maybe_fix_missing_quotes( $_picture );
-            if ( strpos( $_picture[0], '<source ' ) !== false && preg_match_all( '#<source .*srcset=(?:"|\')(?!data)(.*)(?:"|\').*>#Usmi', $_picture[0], $_sources, PREG_SET_ORDER ) !== false ) {
-                foreach ( $_sources as $_source ) {
+        preg_match_all('#<picture.*</picture>#Usmi', $in, $_pictures, PREG_SET_ORDER);
+        foreach ($_pictures as $_picture) {
+            $_picture = $this->maybe_fix_missing_quotes($_picture);
+            if (strpos($_picture[0], '<source ') !== false && preg_match_all('#<source .*srcset=(?:"|\')(?!data)(.*)(?:"|\').*>#Usmi', $_picture[0], $_sources, PREG_SET_ORDER) !== false) {
+                foreach ($_sources as $_source) {
                     $_picture_replacement = $_source[0];
 
                     // should we optimize the image?
-                    if ( $imgopt && $this->can_optimize_image( $_source[1] ) ) {
-                        $_picture_replacement = str_replace( $_source[1], $this->build_imgopt_url( $_source[1] ), $_picture_replacement );
+                    if ($imgopt && $this->can_optimize_image($_source[1])) {
+                        $_picture_replacement = str_replace($_source[1], $this->build_imgopt_url($_source[1]), $_picture_replacement);
                     }
                     // should we lazy-load?
-                    if ( $lazy && str_ireplace( $_exclusions, '', $_picture_replacement ) === $_picture_replacement ) {
-                        $_picture_replacement = str_replace( ' srcset=', ' data-srcset=', $_picture_replacement );
+                    if ($lazy && str_ireplace($_exclusions, '', $_picture_replacement) === $_picture_replacement) {
+                        $_picture_replacement = str_replace(' srcset=', ' data-srcset=', $_picture_replacement);
                     }
-                    $to_replace_pict[ $_source[0] ] = $_picture_replacement;
+                    $to_replace_pict[$_source[0]] = $_picture_replacement;
                 }
             }
         }
 
         // and return the fully procesed $in.
-        $out = str_replace( array_keys( $to_replace_pict ), array_values( $to_replace_pict ), $in );
+        $out = str_replace(array_keys($to_replace_pict), array_values($to_replace_pict), $in);
 
         return $out;
     }
 
-    public function maybe_fix_missing_quotes( $tag_in ) {
+    public function maybe_fix_missing_quotes($tag_in) {
         // W3TC's Minify_HTML class removes quotes around attribute value, this re-adds them.
-        if ( file_exists( WP_PLUGIN_DIR . '/w3-total-cache/w3-total-cache.php' ) && class_exists( 'Minify_HTML' ) && apply_filters( 'autoptimize_filter_imgopt_fixquotes', true ) ) {
-            return preg_replace( '/=([^("|\')]*)(\s|>)/U', '=\'$1\'$2', $tag_in );
+        if (file_exists(WP_PLUGIN_DIR.'/w3-total-cache/w3-total-cache.php') && class_exists('Minify_HTML') && apply_filters('autoptimize_filter_imgopt_fixquotes', true)) {
+            return preg_replace('/=([^("|\')]*)(\s|>)/U', '=\'$1\'$2', $tag_in);
         } else {
             return $tag_in;
         }
@@ -887,14 +887,14 @@ 
             'autoptimize_imgopt',
             'manage_options',
             'autoptimize_imgopt',
-            array( $this, 'imgopt_options_page' )
+            array($this, 'imgopt_options_page')
         );
-        register_setting( 'autoptimize_imgopt_settings', 'autoptimize_imgopt_settings' );
+        register_setting('autoptimize_imgopt_settings', 'autoptimize_imgopt_settings');
     }
 
-    public function add_imgopt_tab( $in )
+    public function add_imgopt_tab($in)
     {
-        $in = array_merge( $in, array( 'autoptimize_imgopt' => __( 'Images', 'autoptimize' ) ) );
+        $in = array_merge($in, array('autoptimize_imgopt' => __('Images', 'autoptimize')));
 
         return $in;
     }
@@ -902,7 +902,7 @@ 
     public function imgopt_options_page()
     {
         // Check querystring for "refreshCacheChecker" and call cachechecker if so.
-        if ( array_key_exists( 'refreshImgProvStats', $_GET ) && 1 == $_GET['refreshImgProvStats'] ) {
+        if (array_key_exists('refreshImgProvStats', $_GET) && 1 == $_GET['refreshImgProvStats']) {
             $this->query_img_provider_stats();
         }
 
@@ -915,45 +915,45 @@ 
         #autoptimize_imgopt_descr{font-size: 120%;}
     </style>
     <div class="wrap">
-    <h1><?php _e( 'Autoptimize Settings', 'autoptimize' ); ?></h1>
+    <h1><?php _e('Autoptimize Settings', 'autoptimize'); ?></h1>
         <?php echo autoptimizeConfig::ao_admin_tabs(); ?>
-        <?php if ( 'down' === $options['availabilities']['extra_imgopt']['status'] ) { ?>
+        <?php if ('down' === $options['availabilities']['extra_imgopt']['status']) { ?>
             <div class="notice-warning notice"><p>
             <?php
             // translators: "Autoptimize support forum" will appear in a "a href".
-            echo sprintf( __( 'The image optimization service is currently down, image optimization will be skipped until further notice. Check the %1$sAutoptimize support forum%2$s for more info.', 'autoptimize' ), '<a href="https://wordpress.org/support/plugin/autoptimize/" target="_blank">', '</a>' );
+            echo sprintf(__('The image optimization service is currently down, image optimization will be skipped until further notice. Check the %1$sAutoptimize support forum%2$s for more info.', 'autoptimize'), '<a href="https://wordpress.org/support/plugin/autoptimize/" target="_blank">', '</a>');
             ?>
             </p></div>
         <?php } ?>
 
-        <?php if ( 'launch' === $options['availabilities']['extra_imgopt']['status'] && ! autoptimizeImages::instance()->launch_ok() ) { ?>
+        <?php if ('launch' === $options['availabilities']['extra_imgopt']['status'] && !autoptimizeImages::instance()->launch_ok()) { ?>
             <div class="notice-warning notice"><p>
-            <?php _e( 'The image optimization service is launching, but not yet available for this domain, it should become available in the next couple of days.', 'autoptimize' ); ?>
+            <?php _e('The image optimization service is launching, but not yet available for this domain, it should become available in the next couple of days.', 'autoptimize'); ?>
             </p></div>
         <?php } ?>
 
-        <?php if ( class_exists( 'Jetpack' ) && method_exists( 'Jetpack', 'get_active_modules' ) && in_array( 'photon', Jetpack::get_active_modules() ) ) { ?>
+        <?php if (class_exists('Jetpack') && method_exists('Jetpack', 'get_active_modules') && in_array('photon', Jetpack::get_active_modules())) { ?>
             <div class="notice-warning notice"><p>
             <?php
             // translators: "disable  Jetpack's site accelerator for images" will appear in a "a href" linking to the jetpack settings page.
-            echo sprintf( __( 'Please %1$sdisable Jetpack\'s site accelerator for images%2$s to be able to use Autoptomize\'s advanced image optimization features below.', 'autoptimize' ), '<a href="admin.php?page=jetpack#/settings">', '</a>' );
+            echo sprintf(__('Please %1$sdisable Jetpack\'s site accelerator for images%2$s to be able to use Autoptomize\'s advanced image optimization features below.', 'autoptimize'), '<a href="admin.php?page=jetpack#/settings">', '</a>');
             ?>
             </p></div>
         <?php } ?>
     <form id='ao_settings_form' action='options.php' method='post'>
-        <?php settings_fields( 'autoptimize_imgopt_settings' ); ?>
-        <h2><?php _e( 'Image optimization', 'autoptimize' ); ?></h2>
-        <span id='autoptimize_imgopt_descr'><?php _e( 'Make your site significantly faster by just ticking a couple of checkboxes to optimize and lazy load your images, WebP support included!', 'autoptimize' ); ?></span>
+        <?php settings_fields('autoptimize_imgopt_settings'); ?>
+        <h2><?php _e('Image optimization', 'autoptimize'); ?></h2>
+        <span id='autoptimize_imgopt_descr'><?php _e('Make your site significantly faster by just ticking a couple of checkboxes to optimize and lazy load your images, WebP support included!', 'autoptimize'); ?></span>
         <table class="form-table">
             <tr>
-                <th scope="row"><?php _e( 'Optimize Images', 'autoptimize' ); ?></th>
+                <th scope="row"><?php _e('Optimize Images', 'autoptimize'); ?></th>
                 <td>
-                    <label><input id='autoptimize_imgopt_checkbox' type='checkbox' name='autoptimize_imgopt_settings[autoptimize_imgopt_checkbox_field_1]' <?php if ( ! empty( $options['autoptimize_imgopt_checkbox_field_1'] ) && '1' === $options['autoptimize_imgopt_checkbox_field_1'] ) { echo 'checked="checked"'; } ?> value='1'><?php _e( 'Optimize images on the fly and serve them from Shortpixel\'s global CDN.', 'autoptimize' ); ?></label>
+                    <label><input id='autoptimize_imgopt_checkbox' type='checkbox' name='autoptimize_imgopt_settings[autoptimize_imgopt_checkbox_field_1]' <?php if (!empty($options['autoptimize_imgopt_checkbox_field_1']) && '1' === $options['autoptimize_imgopt_checkbox_field_1']) { echo 'checked="checked"'; } ?> value='1'><?php _e('Optimize images on the fly and serve them from Shortpixel\'s global CDN.', 'autoptimize'); ?></label>
                     <?php
                     // show shortpixel status.
                     $_notice = autoptimizeImages::instance()->get_status_notice();
-                    if ( $_notice ) {
-                        switch ( $_notice['status'] ) {
+                    if ($_notice) {
+                        switch ($_notice['status']) {
                             case 2:
                                 $_notice_color = 'green';
                                 break;
@@ -969,28 +969,28 @@ 
                             default:
                                 $_notice_color = 'green';
                         }
-                        echo apply_filters( 'autoptimize_filter_imgopt_settings_status', '<p><strong><span style="color:' . $_notice_color . ';">' . __( 'Shortpixel status: ', 'autoptimize' ) . '</span></strong>' . $_notice['notice'] . '</p>' );
+                        echo apply_filters('autoptimize_filter_imgopt_settings_status', '<p><strong><span style="color:'.$_notice_color.';">'.__('Shortpixel status: ', 'autoptimize').'</span></strong>'.$_notice['notice'].'</p>');
                     } else {
                         // translators: link points to shortpixel.
-                        $upsell_msg_1 = '<p>' . sprintf( __( 'Get more Google love and improve your website\'s loading speed by having the images optimized on the fly (also in the "next-gen" WebP image format) by %1$sShortPixel%2$s and then cached and served fast from Shortpixel\'s global CDN.', 'autoptimize' ), '<a href="https://shortpixel.com/aospai' . $sp_url_suffix . '" target="_blank">', '</a>' );
-                        if ( 'launch' === $options['availabilities']['extra_imgopt']['status'] ) {
-                            $upsell_msg_2 = __( 'For a limited time only, this service is offered free for all Autoptimize users, <b>don\'t miss the chance to test it</b> and see how much it could improve your site\'s speed.', 'autoptimize' );
+                        $upsell_msg_1 = '<p>'.sprintf(__('Get more Google love and improve your website\'s loading speed by having the images optimized on the fly (also in the "next-gen" WebP image format) by %1$sShortPixel%2$s and then cached and served fast from Shortpixel\'s global CDN.', 'autoptimize'), '<a href="https://shortpixel.com/aospai'.$sp_url_suffix.'" target="_blank">', '</a>');
+                        if ('launch' === $options['availabilities']['extra_imgopt']['status']) {
+                            $upsell_msg_2 = __('For a limited time only, this service is offered free for all Autoptimize users, <b>don\'t miss the chance to test it</b> and see how much it could improve your site\'s speed.', 'autoptimize');
                         } else {
                             // translators: link points to shortpixel.
-                            $upsell_msg_2 = sprintf( __( '%1$sSign-up now%2$s to receive a 1 000 bonus + 50&#37; more image optimization credits regardless of the traffic used. More image optimizations can be purchased starting with $4.99.', 'autoptimize' ), '<a href="https://shortpixel.com/aospai' . $sp_url_suffix . '" target="_blank">', '</a>' );
+                            $upsell_msg_2 = sprintf(__('%1$sSign-up now%2$s to receive a 1 000 bonus + 50&#37; more image optimization credits regardless of the traffic used. More image optimizations can be purchased starting with $4.99.', 'autoptimize'), '<a href="https://shortpixel.com/aospai'.$sp_url_suffix.'" target="_blank">', '</a>');
                         }
-                        echo apply_filters( 'autoptimize_imgopt_imgopt_settings_copy', $upsell_msg_1 . ' ' . $upsell_msg_2 . '</p>' );
+                        echo apply_filters('autoptimize_imgopt_imgopt_settings_copy', $upsell_msg_1.' '.$upsell_msg_2.'</p>');
                     }
                     // translators: link points to shortpixel FAQ.
-                    $faqcopy = sprintf( __( '<strong>Questions</strong>? Have a look at the %1$sShortPixel FAQ%2$s!', 'autoptimize' ), '<strong><a href="https://shortpixel.helpscoutdocs.com/category/60-shortpixel-ai-cdn" target="_blank">', '</strong></a>' );
+                    $faqcopy = sprintf(__('<strong>Questions</strong>? Have a look at the %1$sShortPixel FAQ%2$s!', 'autoptimize'), '<strong><a href="https://shortpixel.helpscoutdocs.com/category/60-shortpixel-ai-cdn" target="_blank">', '</strong></a>');
                     // translators: links points to shortpixel TOS & Privacy Policy.
-                    $toscopy = sprintf( __( 'Usage of this feature is subject to Shortpixel\'s %1$sTerms of Use%2$s and %3$sPrivacy policy%4$s.', 'autoptimize' ), '<a href="https://shortpixel.com/tos' . $sp_url_suffix . '" target="_blank">', '</a>', '<a href="https://shortpixel.com/pp' . $sp_url_suffix . '" target="_blank">', '</a>' );
-                    echo apply_filters( 'autoptimize_imgopt_imgopt_settings_tos', '<p>' . $faqcopy . ' ' . $toscopy . '</p>' );
+                    $toscopy = sprintf(__('Usage of this feature is subject to Shortpixel\'s %1$sTerms of Use%2$s and %3$sPrivacy policy%4$s.', 'autoptimize'), '<a href="https://shortpixel.com/tos'.$sp_url_suffix.'" target="_blank">', '</a>', '<a href="https://shortpixel.com/pp'.$sp_url_suffix.'" target="_blank">', '</a>');
+                    echo apply_filters('autoptimize_imgopt_imgopt_settings_tos', '<p>'.$faqcopy.' '.$toscopy.'</p>');
                     ?>
                 </td>
             </tr>
-            <tr id='autoptimize_imgopt_quality' <?php if ( ! array_key_exists( 'autoptimize_imgopt_checkbox_field_1', $options ) || ( isset( $options['autoptimize_imgopt_checkbox_field_1'] ) && '1' !== $options['autoptimize_imgopt_checkbox_field_1'] ) ) { echo 'class="hidden"'; } ?>>
-                <th scope="row"><?php _e( 'Image Optimization quality', 'autoptimize' ); ?></th>
+            <tr id='autoptimize_imgopt_quality' <?php if (!array_key_exists('autoptimize_imgopt_checkbox_field_1', $options) || (isset($options['autoptimize_imgopt_checkbox_field_1']) && '1' !== $options['autoptimize_imgopt_checkbox_field_1'])) { echo 'class="hidden"'; } ?>>
+                <th scope="row"><?php _e('Image Optimization quality', 'autoptimize'); ?></th>
                 <td>
                     <label>
                     <select name='autoptimize_imgopt_settings[autoptimize_imgopt_select_field_2]'>
@@ -998,12 +998,12 @@ 
                         $_imgopt_array = autoptimizeImages::instance()->get_img_quality_array();
                         $_imgopt_val   = autoptimizeImages::instance()->get_img_quality_setting();
 
-                        foreach ( $_imgopt_array as $key => $value ) {
-                            echo '<option value="' . $key . '"';
-                            if ( $_imgopt_val == $key ) {
+                        foreach ($_imgopt_array as $key => $value) {
+                            echo '<option value="'.$key.'"';
+                            if ($_imgopt_val == $key) {
                                 echo ' selected';
                             }
-                            echo '>' . ucfirst( $value ) . '</option>';
+                            echo '>'.ucfirst($value).'</option>';
                         }
                         echo "\n";
                         ?>
@@ -1012,31 +1012,31 @@ 
                     <p>
                         <?php
                             // translators: link points to shortpixel image test page.
-                            echo apply_filters( 'autoptimize_imgopt_imgopt_quality_copy', sprintf( __( 'You can %1$stest compression levels here%2$s.', 'autoptimize' ), '<a href="https://shortpixel.com/oic' . $sp_url_suffix . '" target="_blank">', '</a>' ) );
+                            echo apply_filters('autoptimize_imgopt_imgopt_quality_copy', sprintf(__('You can %1$stest compression levels here%2$s.', 'autoptimize'), '<a href="https://shortpixel.com/oic'.$sp_url_suffix.'" target="_blank">', '</a>'));
                         ?>
                     </p>
                 </td>
             </tr>
-            <tr id='autoptimize_imgopt_webp' <?php if ( ! array_key_exists( 'autoptimize_imgopt_checkbox_field_1', $options ) || ( isset( $options['autoptimize_imgopt_checkbox_field_1'] ) && '1' !== $options['autoptimize_imgopt_checkbox_field_1'] ) ) { echo 'class="hidden"'; } ?>>
-                <th scope="row"><?php _e( 'Load WebP in supported browsers?', 'autoptimize' ); ?></th>
+            <tr id='autoptimize_imgopt_webp' <?php if (!array_key_exists('autoptimize_imgopt_checkbox_field_1', $options) || (isset($options['autoptimize_imgopt_checkbox_field_1']) && '1' !== $options['autoptimize_imgopt_checkbox_field_1'])) { echo 'class="hidden"'; } ?>>
+                <th scope="row"><?php _e('Load WebP in supported browsers?', 'autoptimize'); ?></th>
                 <td>
-                    <label><input type='checkbox' id='autoptimize_imgopt_webp_checkbox' name='autoptimize_imgopt_settings[autoptimize_imgopt_checkbox_field_4]' <?php if ( ! empty( $options['autoptimize_imgopt_checkbox_field_4'] ) && '1' === $options['autoptimize_imgopt_checkbox_field_3'] ) { echo 'checked="checked"'; } ?> value='1'><?php _e( 'Automatically serve "next-gen" WebP image format to any browser that supports it (requires lazy load to be active).', 'autoptimize' ); ?></label>
+                    <label><input type='checkbox' id='autoptimize_imgopt_webp_checkbox' name='autoptimize_imgopt_settings[autoptimize_imgopt_checkbox_field_4]' <?php if (!empty($options['autoptimize_imgopt_checkbox_field_4']) && '1' === $options['autoptimize_imgopt_checkbox_field_3']) { echo 'checked="checked"'; } ?> value='1'><?php _e('Automatically serve "next-gen" WebP image format to any browser that supports it (requires lazy load to be active).', 'autoptimize'); ?></label>
                 </td>
             </tr>
             <tr>
-                <th scope="row"><?php _e( 'Lazy-load images?', 'autoptimize' ); ?></th>
+                <th scope="row"><?php _e('Lazy-load images?', 'autoptimize'); ?></th>
                 <td>
-                    <label><input type='checkbox' id='autoptimize_imgopt_lazyload_checkbox' name='autoptimize_imgopt_settings[autoptimize_imgopt_checkbox_field_3]' <?php if ( ! empty( $options['autoptimize_imgopt_checkbox_field_3'] ) && '1' === $options['autoptimize_imgopt_checkbox_field_3'] ) { echo 'checked="checked"'; } ?> value='1'><?php _e( 'Image lazy-loading will delay the loading of non-visible images to allow the browser to optimally load all resources for the "above the fold"-page first.', 'autoptimize' ); ?></label>
+                    <label><input type='checkbox' id='autoptimize_imgopt_lazyload_checkbox' name='autoptimize_imgopt_settings[autoptimize_imgopt_checkbox_field_3]' <?php if (!empty($options['autoptimize_imgopt_checkbox_field_3']) && '1' === $options['autoptimize_imgopt_checkbox_field_3']) { echo 'checked="checked"'; } ?> value='1'><?php _e('Image lazy-loading will delay the loading of non-visible images to allow the browser to optimally load all resources for the "above the fold"-page first.', 'autoptimize'); ?></label>
                 </td>
             </tr>
-            <tr id='autoptimize_imgopt_lazyload_exclusions' <?php if ( ! array_key_exists( 'autoptimize_imgopt_checkbox_field_3', $options ) || ( isset( $options['autoptimize_imgopt_checkbox_field_3'] ) && '1' !== $options['autoptimize_imgopt_checkbox_field_3'] ) ) { echo 'class="hidden"'; } ?>>
-                <th scope="row"><?php _e( 'Lazy-load exclusions', 'autoptimize' ); ?></th>
+            <tr id='autoptimize_imgopt_lazyload_exclusions' <?php if (!array_key_exists('autoptimize_imgopt_checkbox_field_3', $options) || (isset($options['autoptimize_imgopt_checkbox_field_3']) && '1' !== $options['autoptimize_imgopt_checkbox_field_3'])) { echo 'class="hidden"'; } ?>>
+                <th scope="row"><?php _e('Lazy-load exclusions', 'autoptimize'); ?></th>
                 <td>
-                    <label><input type='text' style='width:80%' id='autoptimize_imgopt_lazyload_exclusions' name='autoptimize_imgopt_settings[autoptimize_imgopt_text_field_5]' value='<?php if ( ! empty( $options['autoptimize_imgopt_text_field_5'] ) ) { echo esc_attr( $options['autoptimize_imgopt_text_field_5'] ); } ?>'><br /><?php _e( 'Comma-separated list of to be excluded image classes or filenames.', 'autoptimize' ); ?></label>
+                    <label><input type='text' style='width:80%' id='autoptimize_imgopt_lazyload_exclusions' name='autoptimize_imgopt_settings[autoptimize_imgopt_text_field_5]' value='<?php if (!empty($options['autoptimize_imgopt_text_field_5'])) { echo esc_attr($options['autoptimize_imgopt_text_field_5']); } ?>'><br /><?php _e('Comma-separated list of to be excluded image classes or filenames.', 'autoptimize'); ?></label>
                 </td>
             </tr>
         </table>
-        <p class="submit"><input type="submit" name="submit" id="submit" class="button button-primary" value="<?php _e( 'Save Changes', 'autoptimize' ); ?>" /></p>
+        <p class="submit"><input type="submit" name="submit" id="submit" class="button button-primary" value="<?php _e('Save Changes', 'autoptimize'); ?>" /></p>
     </form>
     <script>
         jQuery(document).ready(function() {
@@ -1072,37 +1072,37 @@ 
      * Ïmg opt status as used on dashboard.
      */
     public function get_imgopt_status_notice() {
-        if ( $this->imgopt_active() ) {
+        if ($this->imgopt_active()) {
             $_imgopt_notice = '';
-            $_stat          = get_option( 'autoptimize_imgopt_provider_stat', '' );
+            $_stat          = get_option('autoptimize_imgopt_provider_stat', '');
             $_site_host     = AUTOPTIMIZE_SITE_DOMAIN;
-            $_imgopt_upsell = 'https://shortpixel.com/aospai/af/GWRGFLW109483/' . $_site_host;
+            $_imgopt_upsell = 'https://shortpixel.com/aospai/af/GWRGFLW109483/'.$_site_host;
 
-            if ( is_array( $_stat ) ) {
-                if ( 1 == $_stat['Status'] ) {
+            if (is_array($_stat)) {
+                if (1 == $_stat['Status']) {
                     // translators: "add more credits" will appear in a "a href".
-                    $_imgopt_notice = sprintf( __( 'Your ShortPixel image optimization and CDN quota is almost used, make sure you %1$sadd more credits%2$s to avoid slowing down your website.', 'autoptimize' ), '<a href="' . $_imgopt_upsell . '" target="_blank">', '</a>' );
+                    $_imgopt_notice = sprintf(__('Your ShortPixel image optimization and CDN quota is almost used, make sure you %1$sadd more credits%2$s to avoid slowing down your website.', 'autoptimize'), '<a href="'.$_imgopt_upsell.'" target="_blank">', '</a>');
                 } elseif ( -1 == $_stat['Status'] || -2 == $_stat['Status'] ) {
                     // translators: "add more credits" will appear in a "a href".
-                    $_imgopt_notice            = sprintf( __( 'Your ShortPixel image optimization and CDN quota was used, %1$sadd more credits%2$s to keep fast serving optimized images on your site', 'autoptimize' ), '<a href="' . $_imgopt_upsell . '" target="_blank">', '</a>' );
-                    $_imgopt_stats_refresh_url = add_query_arg( array(
+                    $_imgopt_notice            = sprintf(__('Your ShortPixel image optimization and CDN quota was used, %1$sadd more credits%2$s to keep fast serving optimized images on your site', 'autoptimize'), '<a href="'.$_imgopt_upsell.'" target="_blank">', '</a>');
+                    $_imgopt_stats_refresh_url = add_query_arg(array(
                         'page'                => 'autoptimize_imgopt',
                         'refreshImgProvStats' => '1',
-                    ), admin_url( 'options-general.php' ) );
-                    if ( $_stat && array_key_exists( 'timestamp', $_stat ) && ! empty( $_stat['timestamp'] ) ) {
-                        $_imgopt_stats_last_run = __( 'based on status at ', 'autoptimize' ) . date_i18n( get_option( 'time_format' ), $_stat['timestamp'] );
+                    ), admin_url('options-general.php'));
+                    if ($_stat && array_key_exists('timestamp', $_stat) && !empty($_stat['timestamp'])) {
+                        $_imgopt_stats_last_run = __('based on status at ', 'autoptimize').date_i18n(get_option('time_format'), $_stat['timestamp']);
                     } else {
-                        $_imgopt_stats_last_run = __( 'based on previously fetched data', 'autoptimize' );
+                        $_imgopt_stats_last_run = __('based on previously fetched data', 'autoptimize');
                     }
-                    $_imgopt_notice .= ' (' . $_imgopt_stats_last_run . ', ';
+                    $_imgopt_notice .= ' ('.$_imgopt_stats_last_run.', ';
                     // translators: "here to refresh" links to the Autoptimize Extra page and forces a refresh of the img opt stats.
-                    $_imgopt_notice .= sprintf( __( 'click %1$shere to refresh%2$s', 'autoptimize' ), '<a href="' . $_imgopt_stats_refresh_url . '">', '</a>).' );
+                    $_imgopt_notice .= sprintf(__('click %1$shere to refresh%2$s', 'autoptimize'), '<a href="'.$_imgopt_stats_refresh_url.'">', '</a>).');
                 } else {
                     $_imgopt_upsell = 'https://shortpixel.com/g/af/GWRGFLW109483';
                     // translators: "log in to check your account" will appear in a "a href".
-                    $_imgopt_notice = sprintf( __( 'Your ShortPixel image optimization and CDN quota are in good shape, %1$slog in to check your account%2$s.', 'autoptimize' ), '<a href="' . $_imgopt_upsell . '" target="_blank">', '</a>' );
+                    $_imgopt_notice = sprintf(__('Your ShortPixel image optimization and CDN quota are in good shape, %1$slog in to check your account%2$s.', 'autoptimize'), '<a href="'.$_imgopt_upsell.'" target="_blank">', '</a>');
                 }
-                $_imgopt_notice = apply_filters( 'autoptimize_filter_imgopt_notice', $_imgopt_notice );
+                $_imgopt_notice = apply_filters('autoptimize_filter_imgopt_notice', $_imgopt_notice);
 
                 return array(
                     'status' => $_stat['Status'],
@@ -1123,14 +1123,14 @@ 
      * Get img provider stats (used to display notice).
      */
     public function query_img_provider_stats() {
-        if ( ! empty( $this->options['autoptimize_imgopt_checkbox_field_1'] ) ) {
+        if (!empty($this->options['autoptimize_imgopt_checkbox_field_1'])) {
             $url      = '';
-            $endpoint = $this->get_imgopt_host() . 'read-domain/';
+            $endpoint = $this->get_imgopt_host().'read-domain/';
             $domain   = AUTOPTIMIZE_SITE_DOMAIN;
 
             // make sure parse_url result makes sense, keeping $url empty if not.
-            if ( $domain && ! empty( $domain ) ) {
-                $url = $endpoint . $domain;
+            if ($domain && !empty($domain)) {
+                $url = $endpoint.$domain;
             }
 
             $url = apply_filters(
@@ -1140,12 +1140,12 @@ 
 
             // only do the remote call if $url is not empty to make sure no parse_url
             // weirdness results in useless calls.
-            if ( ! empty( $url ) ) {
-                $response = wp_remote_get( $url );
-                if ( ! is_wp_error( $response ) ) {
-                    if ( '200' == wp_remote_retrieve_response_code( $response ) ) {
-                        $stats = json_decode( wp_remote_retrieve_body( $response ), true );
-                        update_option( 'autoptimize_imgopt_provider_stat', $stats );
+            if (!empty($url)) {
+                $response = wp_remote_get($url);
+                if (!is_wp_error($response)) {
+                    if ('200' == wp_remote_retrieve_response_code($response)) {
+                        $stats = json_decode(wp_remote_retrieve_body($response), true);
+                        update_option('autoptimize_imgopt_provider_stat', $stats);
                     }
                 }
             }
@@ -1168,15 +1168,15 @@ 
     {
         static $launch_status = null;
 
-        if ( null === $launch_status ) {
+        if (null === $launch_status) {
             $avail_imgopt  = $this->options['availabilities']['extra_imgopt'];
-            $magic_number  = intval( substr( md5( parse_url( AUTOPTIMIZE_WP_SITE_URL, PHP_URL_HOST ) ), 0, 3 ), 16 );
-            $has_launched  = get_option( 'autoptimize_imgopt_launched', '' );
+            $magic_number  = intval(substr(md5(parse_url(AUTOPTIMIZE_WP_SITE_URL, PHP_URL_HOST)), 0, 3), 16);
+            $has_launched  = get_option('autoptimize_imgopt_launched', '');
             $launch_status = false;
-            if ( $has_launched || ( is_array( $avail_imgopt ) && array_key_exists( 'launch-threshold', $avail_imgopt ) && $magic_number < $avail_imgopt['launch-threshold'] ) ) {
+            if ($has_launched || (is_array($avail_imgopt) && array_key_exists('launch-threshold', $avail_imgopt) && $magic_number < $avail_imgopt['launch-threshold'])) {
                 $launch_status = true;
-                if ( ! $has_launched ) {
-                    update_option( 'autoptimize_imgopt_launched', 'on' );
+                if (!$has_launched) {
+                    update_option('autoptimize_imgopt_launched', 'on');
                 }
             }
         }
@@ -1193,16 +1193,16 @@ 
     public function get_imgopt_provider_userstatus() {
         static $_provider_userstatus = null;
 
-        if ( is_null( $_provider_userstatus ) ) {
-            $_stat = get_option( 'autoptimize_imgopt_provider_stat', '' );
-            if ( is_array( $_stat ) ) {
-                if ( array_key_exists( 'Status', $_stat ) ) {
+        if (is_null($_provider_userstatus)) {
+            $_stat = get_option('autoptimize_imgopt_provider_stat', '');
+            if (is_array($_stat)) {
+                if (array_key_exists('Status', $_stat)) {
                     $_provider_userstatus['Status'] = $_stat['Status'];
                 } else {
                     // if no stats then we assume all is well.
                     $_provider_userstatus['Status'] = 2;
                 }
-                if ( array_key_exists( 'timestamp', $_stat ) ) {
+                if (array_key_exists('timestamp', $_stat)) {
                     $_provider_userstatus['timestamp'] = $_stat['timestamp'];
                 } else {
                     // if no timestamp then we return "".
@@ -1215,27 +1215,27 @@ 
     }
 
     public function get_status_notice() {
-        if ( $this->imgopt_active() ) {
+        if ($this->imgopt_active()) {
             $notice = '';
             $stat   = $this->get_imgopt_provider_userstatus();
-            $upsell = 'https://shortpixel.com/aospai/af/GWRGFLW109483/' . AUTOPTIMIZE_SITE_DOMAIN;
+            $upsell = 'https://shortpixel.com/aospai/af/GWRGFLW109483/'.AUTOPTIMIZE_SITE_DOMAIN;
             $assoc  = 'https://shortpixel.helpscoutdocs.com/article/94-how-to-associate-a-domain-to-my-account';
 
-            if ( is_array( $stat ) ) {
-                if ( 1 == $stat['Status'] ) {
+            if (is_array($stat)) {
+                if (1 == $stat['Status']) {
                     // translators: "add more credits" will appear in a "a href".
-                    $notice = sprintf( __( 'Your ShortPixel image optimization and CDN quota is almost used, make sure you %1$sadd more credits%2$s to avoid slowing down your website.', 'autoptimize' ), '<a rel="noopener noreferrer" href="' . $upsell . '" target="_blank">', '</a>' );
+                    $notice = sprintf(__('Your ShortPixel image optimization and CDN quota is almost used, make sure you %1$sadd more credits%2$s to avoid slowing down your website.', 'autoptimize'), '<a rel="noopener noreferrer" href="'.$upsell.'" target="_blank">', '</a>');
                 } elseif ( -1 == $stat['Status'] || -2 == $stat['Status'] ) {
                     // translators: "add more credits" will appear in a "a href".
-                    $notice = sprintf( __( 'Your ShortPixel image optimization and CDN quota was used, %1$sadd more credits%2$s to keep fast serving optimized images on your site.', 'autoptimize' ), '<a rel="noopener noreferrer" href="' . $upsell . '" target="_blank">', '</a>' );
+                    $notice = sprintf(__('Your ShortPixel image optimization and CDN quota was used, %1$sadd more credits%2$s to keep fast serving optimized images on your site.', 'autoptimize'), '<a rel="noopener noreferrer" href="'.$upsell.'" target="_blank">', '</a>');
                     // translators: "associate your domain" will appear in a "a href".
-                    $notice = $notice . ' ' . sprintf( __( 'If you already have enough credits then you may need to %1$sassociate your domain%2$s to your Shortpixel account.', 'autoptimize' ), '<a rel="noopener noreferrer" href="' . $assoc . '" target="_blank">', '</a>' );
+                    $notice = $notice.' '.sprintf(__('If you already have enough credits then you may need to %1$sassociate your domain%2$s to your Shortpixel account.', 'autoptimize'), '<a rel="noopener noreferrer" href="'.$assoc.'" target="_blank">', '</a>');
                 } else {
                     $upsell = 'https://shortpixel.com/g/af/GWRGFLW109483';
                     // translators: "log in to check your account" will appear in a "a href".
-                    $notice = sprintf( __( 'Your ShortPixel image optimization and CDN quota are in good shape, %1$slog in to check your account%2$s.', 'autoptimize' ), '<a rel="noopener noreferrer" href="' . $upsell . '" target="_blank">', '</a>' );
+                    $notice = sprintf(__('Your ShortPixel image optimization and CDN quota are in good shape, %1$slog in to check your account%2$s.', 'autoptimize'), '<a rel="noopener noreferrer" href="'.$upsell.'" target="_blank">', '</a>');
                 }
-                $notice = apply_filters( 'autoptimize_filter_imgopt_notice', $notice );
+                $notice = apply_filters('autoptimize_filter_imgopt_notice', $notice);
 
                 return array(
                     'status' => $stat['Status'],