Mistralys / application-utils

src/ConvertHelper.php

Spacing +116 added lines, -116 removed lines

@@ -59,7 +59,7 @@ 
             $amount = substr_count($line, "\t") - $min;
             $line = trim($line);
             if ($amount >= 1) {
-                $line = str_repeat("\t", $amount) . $line;
+                $line = str_repeat("\t", $amount).$line;
             }
 
             $converted[] = $line;
@@ -131,10 +131,10 @@ 
 
         // specifically handle zero
         if ($seconds <= 0) {
-            return '0 ' . t('seconds');
+            return '0 '.t('seconds');
         }
         
-        if($seconds < 1) {
+        if ($seconds < 1) {
             return t('less than a second');
         }
 
@@ -142,7 +142,7 @@ 
         foreach ($units as $def) {
             $quot = intval($seconds / $def['value']);
             if ($quot) {
-                $item = $quot . ' ';
+                $item = $quot.' ';
                 if (abs($quot) > 1) {
                     $item .= $def['plural'];
                 } else {
@@ -159,7 +159,7 @@ 
             return $last;
         }
 
-        return implode(', ', $tokens) . ' ' . t('and') . ' ' . $last;
+        return implode(', ', $tokens).' '.t('and').' '.$last;
     }
 
     /**
@@ -176,11 +176,11 @@ 
      */
     public static function duration2string($datefrom, $dateto = -1)
     {
-        if($datefrom instanceof \DateTime) {
+        if ($datefrom instanceof \DateTime) {
             $datefrom = ConvertHelper::date2timestamp($datefrom);
         }
         
-        if($dateto instanceof \DateTime) {
+        if ($dateto instanceof \DateTime) {
             $dateto = ConvertHelper::date2timestamp($dateto);
         }
         
@@ -201,7 +201,7 @@ 
         $interval = "";
         
         $future = false;
-        if($difference < 0) {
+        if ($difference < 0) {
             $difference = $difference * -1;
             $future = true;
         }
@@ -276,7 +276,7 @@ 
                 $day = (int)date("j", $dateto);
                 $year = (int)date("Y", $datefrom);
                 
-                while(mktime($hour, $min, $sec, $month + ($months_difference), $day, $year) < $dateto) 
+                while (mktime($hour, $min, $sec, $month + ($months_difference), $day, $year) < $dateto) 
                 {
                     $months_difference++;
                 }
@@ -291,7 +291,7 @@ 
                     $datediff--;
                 }
 
-                if($future) {
+                if ($future) {
                     $result = ($datediff == 1) ? t('In one month', $datediff) : t('In %1s months', $datediff);
                 } else {
                     $result = ($datediff == 1) ? t('One month ago', $datediff) : t('%1s months ago', $datediff);
@@ -300,7 +300,7 @@ 
 
             case "y":
                 $datediff = floor($difference / 60 / 60 / 24 / 365);
-                if($future) {
+                if ($future) {
                     $result = ($datediff == 1) ? t('In one year', $datediff) : t('In %1s years', $datediff);
                 } else {
                     $result = ($datediff == 1) ? t('One year ago', $datediff) : t('%1s years ago', $datediff);
@@ -309,7 +309,7 @@ 
 
             case "d":
                 $datediff = floor($difference / 60 / 60 / 24);
-                if($future) {
+                if ($future) {
                     $result = ($datediff == 1) ? t('In one day', $datediff) : t('In %1s days', $datediff);
                 } else {
                     $result = ($datediff == 1) ? t('One day ago', $datediff) : t('%1s days ago', $datediff);
@@ -318,7 +318,7 @@ 
 
             case "ww":
                 $datediff = floor($difference / 60 / 60 / 24 / 7);
-                if($future) {
+                if ($future) {
                     $result = ($datediff == 1) ? t('In one week', $datediff) : t('In %1s weeks', $datediff);
                 } else {
                     $result = ($datediff == 1) ? t('One week ago', $datediff) : t('%1s weeks ago', $datediff);
@@ -327,7 +327,7 @@ 
 
             case "h":
                 $datediff = floor($difference / 60 / 60);
-                if($future) {
+                if ($future) {
                     $result = ($datediff == 1) ? t('In one hour', $datediff) : t('In %1s hours', $datediff);
                 } else {
                     $result = ($datediff == 1) ? t('One hour ago', $datediff) : t('%1s hours ago', $datediff);
@@ -336,7 +336,7 @@ 
 
             case "n":
                 $datediff = floor($difference / 60);
-                if($future) {
+                if ($future) {
                     $result = ($datediff == 1) ? t('In one minute', $datediff) : t('In %1s minutes', $datediff);
                 } else {
                     $result = ($datediff == 1) ? t('One minute ago', $datediff) : t('%1s minutes ago', $datediff);
@@ -345,7 +345,7 @@ 
 
             case "s":
                 $datediff = $difference;
-                if($future) {
+                if ($future) {
                     $result = ($datediff == 1) ? t('In one second', $datediff) : t('In %1s seconds', $datediff);
                 } else {
                     $result = ($datediff == 1) ? t('One second ago', $datediff) : t('%1s seconds ago', $datediff);
@@ -368,9 +368,9 @@ 
         return $geshi->parse_code();
     }
     
-    public static function highlight_xml($xml, $formatSource=false)
+    public static function highlight_xml($xml, $formatSource = false)
     {
-        if($formatSource) 
+        if ($formatSource) 
         {
             $dom = new \DOMDocument();
             $dom->loadXML($xml);
@@ -408,22 +408,22 @@ 
         $terabyte = $gigabyte * 1024;
 
         if (($bytes >= 0) && ($bytes < $kilobyte)) {
-            return $bytes . ' ' . t('B');
+            return $bytes.' '.t('B');
 
         } elseif (($bytes >= $kilobyte) && ($bytes < $megabyte)) {
-            return round($bytes / $kilobyte, $precision) . ' ' . t('Kb');
+            return round($bytes / $kilobyte, $precision).' '.t('Kb');
 
         } elseif (($bytes >= $megabyte) && ($bytes < $gigabyte)) {
-            return round($bytes / $megabyte, $precision) . ' ' . t('Mb');
+            return round($bytes / $megabyte, $precision).' '.t('Mb');
 
         } elseif (($bytes >= $gigabyte) && ($bytes < $terabyte)) {
-            return round($bytes / $gigabyte, $precision) . ' ' . t('Gb');
+            return round($bytes / $gigabyte, $precision).' '.t('Gb');
 
         } elseif ($bytes >= $terabyte) {
-            return round($bytes / $gigabyte, $precision) . ' ' . t('Tb');
+            return round($bytes / $gigabyte, $precision).' '.t('Tb');
         }
 
-        return $bytes . ' ' . t('B');
+        return $bytes.' '.t('B');
     }
 
    /**
@@ -443,34 +443,34 @@ 
             return $text;
         }
 
-        $text = trim(mb_substr($text, 0, $targetLength)) . $append;
+        $text = trim(mb_substr($text, 0, $targetLength)).$append;
 
         return $text;
     }
 
-    public static function var_dump($var, $html=true)
+    public static function var_dump($var, $html = true)
     {
         $info = parseVariable($var);
         
-        if($html) {
+        if ($html) {
             return $info->toHTML();
         }
         
         return $info->toString();
     }
     
-    public static function print_r($var, $return=false, $html=true)
+    public static function print_r($var, $return = false, $html = true)
     {
         $result = self::var_dump($var, $html);
         
-        if($html) {
+        if ($html) {
             $result = 
             '<pre style="background:#fff;color:#333;padding:16px;border:solid 1px #bbb;border-radius:4px">'.
                 $result.
             '</pre>';
         }
         
-        if($return) {
+        if ($return) {
             return $result;
         }
         
@@ -490,7 +490,7 @@ 
 
     public static function string2bool($string)
     {
-        if($string === '' || $string === null) {
+        if ($string === '' || $string === null) {
             return false;
         }
         
@@ -545,10 +545,10 @@ 
     public static function date2listLabel(\DateTime $date, $includeTime = false, $shortMonth = false)
     {
         $today = new \DateTime();
-        if($date->format('d.m.Y') == $today->format('d.m.Y')) {
+        if ($date->format('d.m.Y') == $today->format('d.m.Y')) {
             $label = t('Today');
         } else {
-            $label = $date->format('d') . '. ' . self::month2string((int)$date->format('m'), $shortMonth) . ' ';
+            $label = $date->format('d').'. '.self::month2string((int)$date->format('m'), $shortMonth).' ';
             if ($date->format('Y') != date('Y')) {
                 $label .= $date->format('Y');
             }
@@ -639,28 +639,28 @@ 
         $hexAlphabet = array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F');
         
         $stack = array();
-        foreach(self::$controlChars as $char)
+        foreach (self::$controlChars as $char)
         {
             $tokens = explode('-', $char);
             $start = $tokens[0];
             $end = $tokens[1];
             $prefix = substr($start, 0, 3);
             $range = array();
-            foreach($hexAlphabet as $number) {
+            foreach ($hexAlphabet as $number) {
                 $range[] = $prefix.$number;
             }
             
             $use = false;
-            foreach($range as $number) {
-                if($number == $start) {
+            foreach ($range as $number) {
+                if ($number == $start) {
                     $use = true;
                 }
                 
-                if($use) {
+                if ($use) {
                     $stack[] = $number;
                 }
                 
-                if($number == $end) {
+                if ($number == $end) {
                     break;
                 }
             }
@@ -681,7 +681,7 @@ 
         $chars = self::getControlCharactersAsHex();
         
         $result = array();
-        foreach($chars as $char) {
+        foreach ($chars as $char) {
             $result[] = hex2bin($char);
         }
         
@@ -699,14 +699,14 @@ 
         $chars = self::getControlCharactersAsHex();
         
         $result = array();
-        foreach($chars as $char) {
+        foreach ($chars as $char) {
             $result[] = '\u'.strtolower($char);
         }
         
         return $result;
     }
     
-    protected static $controlChars =  array(
+    protected static $controlChars = array(
         '0000-0008', // control chars
         '000E-000F', // control chars
         '0010-001F', // control chars
@@ -728,19 +728,19 @@ 
      */
     public static function stripControlCharacters(string $string) : string
     {
-        if(empty($string)) {
+        if (empty($string)) {
             return $string;
         }
         
         // create the regex from the unicode characters list
-        if(!isset(self::$controlCharsRegex)) 
+        if (!isset(self::$controlCharsRegex)) 
         {
             $chars = self::getControlCharactersAsHex();
 
             // we use the notation \x{0000} to specify the unicode character key
             // in the regular expression.
             $stack = array();
-            foreach($chars as $char) {
+            foreach ($chars as $char) {
                 $stack[] = '\x{'.$char.'}';
             }
             
@@ -774,7 +774,7 @@ 
             $ordInt = ord($octet);
             // Convert from int (base 10) to hex (base 16), for PHP \x syntax
             $ordHex = base_convert($ordInt, 10, 16);
-            $output .= '\x' . $ordHex;
+            $output .= '\x'.$ordHex;
         }
         return $output;
     }
@@ -806,19 +806,19 @@ 
     
     protected static function convertScalarForComparison($scalar)
     {
-        if($scalar === '' || is_null($scalar)) {
+        if ($scalar === '' || is_null($scalar)) {
             return null;
         }
         
-        if(is_bool($scalar)) {
+        if (is_bool($scalar)) {
             return self::bool2string($scalar);
         }
         
-        if(is_array($scalar)) {
+        if (is_array($scalar)) {
             $scalar = md5(serialize($scalar));
         }
         
-        if($scalar !== null && !is_scalar($scalar)) {
+        if ($scalar !== null && !is_scalar($scalar)) {
             throw new ConvertHelper_Exception(
                 'Not a scalar value in comparison',
                 null,
@@ -867,7 +867,7 @@ 
     public static function bool2string($boolean, bool $yesno = false) : string
     {
         // allow 'yes', 'true', 'no', 'false' string notations as well
-        if(!is_bool($boolean)) {
+        if (!is_bool($boolean)) {
             $boolean = self::string2bool($boolean);
         }
         
@@ -908,15 +908,15 @@ 
     public static function array2attributeString($array)
     {
         $tokens = array();
-        foreach($array as $attr => $value) {
-            if($value == '' || $value == null) {
+        foreach ($array as $attr => $value) {
+            if ($value == '' || $value == null) {
                 continue;
             }
             
             $tokens[] = $attr.'="'.$value.'"';
         }
         
-        if(empty($tokens)) {
+        if (empty($tokens)) {
             return '';
         }
         
@@ -931,10 +931,10 @@ 
     * @param string $string
     * @return string
     */
-    public static function string2attributeJS($string, $quoted=true)
+    public static function string2attributeJS($string, $quoted = true)
     {
         $converted = addslashes(htmlspecialchars(strip_tags($string), ENT_QUOTES, 'UTF-8'));
-        if($quoted) {
+        if ($quoted) {
             $converted = "'".$converted."'";
         } 
         
@@ -952,11 +952,11 @@ 
     */
     public static function isBoolean($value) : bool
     {
-        if(is_bool($value)) {
+        if (is_bool($value)) {
             return true;
         }
         
-        if(!is_scalar($value)) {
+        if (!is_scalar($value)) {
             return false;
         }
         
@@ -972,7 +972,7 @@ 
     public static function array2styleString(array $subject) : string
     {
         $tokens = array();
-        foreach($subject as $name => $value) {
+        foreach ($subject as $name => $value) {
             $tokens[] = $name.':'.$value;
         }
         
@@ -1030,7 +1030,7 @@ 
     * 
     * @see JSHelper::buildRegexStatement()
     */
-    public static function regex2js(string $regex, string $statementType=JSHelper::JS_REGEX_OBJECT)
+    public static function regex2js(string $regex, string $statementType = JSHelper::JS_REGEX_OBJECT)
     {
         return JSHelper::buildRegexStatement($regex, $statementType);
     }
@@ -1047,11 +1047,11 @@ 
     * @throws ConvertHelper_Exception
     * @return string
     */
-    public static function var2json($variable, int $options=0, int $depth=512) : string
+    public static function var2json($variable, int $options = 0, int $depth = 512) : string
     {
         $result = json_encode($variable, $options, $depth);
         
-        if($result !== false) {
+        if ($result !== false) {
             return $result;
         }
         
@@ -1076,10 +1076,10 @@ 
     public static function stripUTFBom($string)
     {
         $boms = FileHelper::getUTFBOMs();
-        foreach($boms as $bomChars) {
+        foreach ($boms as $bomChars) {
             $length = mb_strlen($bomChars);
             $text = mb_substr($string, 0, $length);
-            if($text==$bomChars) {
+            if ($text == $bomChars) {
                 return mb_substr($string, $length);
             }
         }
@@ -1096,7 +1096,7 @@ 
     */
     public static function string2utf8($string)
     {
-        if(!self::isStringASCII($string)) {
+        if (!self::isStringASCII($string)) {
             return \ForceUTF8\Encoding::toUTF8($string);
         }
         
@@ -1114,11 +1114,11 @@ 
     */
     public static function isStringASCII($string)
     {
-        if($string === '' || $string === NULL) {
+        if ($string === '' || $string === NULL) {
             return true;
         }
         
-        if(!is_string($string)) {
+        if (!is_string($string)) {
             return false;
         }
         
@@ -1152,7 +1152,7 @@ 
     * @param array $options
     * @return float
     */
-    public static function matchString($source, $target, $options=array())
+    public static function matchString($source, $target, $options = array())
     {
         $defaults = array(
             'maxLevenshtein' => 10,
@@ -1162,12 +1162,12 @@ 
         $options = array_merge($defaults, $options);
         
         // avoid doing this via levenshtein
-        if($source == $target) {
+        if ($source == $target) {
             return 100;
         }
         
         $diff = levenshtein($source, $target);
-        if($diff > $options['maxLevenshtein']) {
+        if ($diff > $options['maxLevenshtein']) {
             return 0;
         }
         
@@ -1181,8 +1181,8 @@ 
         
         $offset = 0;
         $keep = array();
-        foreach($tokens as $token) {
-            if($interval->$token > 0) {
+        foreach ($tokens as $token) {
+            if ($interval->$token > 0) {
                 $keep = array_slice($tokens, $offset);
                 break;
             }
@@ -1191,16 +1191,16 @@ 
         }
         
         $parts = array();
-        foreach($keep as $token) 
+        foreach ($keep as $token) 
         {
             $value = $interval->$token;
             $label = '';
             
             $suffix = 'p';
-            if($value == 1) { $suffix = 's'; }
+            if ($value == 1) { $suffix = 's'; }
             $token .= $suffix;
             
-            switch($token) {
+            switch ($token) {
                 case 'ys': $label = t('1 year'); break;
                 case 'yp': $label = t('%1$s years', $value); break;
                 case 'ms': $label = t('1 month'); break;
@@ -1218,7 +1218,7 @@ 
             $parts[] = $label;
         }
         
-        if(count($parts) == 1) {
+        if (count($parts) == 1) {
             return $parts[0];
         } 
         
@@ -1289,24 +1289,24 @@ 
     * @see ConvertHelper::INTERVAL_HOURS
     * @see ConvertHelper::INTERVAL_DAYS
     */
-    public static function interval2total(\DateInterval $interval, $unit=self::INTERVAL_SECONDS) : int
+    public static function interval2total(\DateInterval $interval, $unit = self::INTERVAL_SECONDS) : int
     {
         $total = $interval->format('%a');
         if ($unit == self::INTERVAL_DAYS) {
             return (int)$total;
         }
         
-        $total = ($total * 24) + ($interval->h );
+        $total = ($total * 24) + ($interval->h);
         if ($unit == self::INTERVAL_HOURS) {
             return (int)$total;
         }
     
-        $total = ($total * 60) + ($interval->i );
+        $total = ($total * 60) + ($interval->i);
         if ($unit == self::INTERVAL_MINUTES) {
             return (int)$total;
         }
 
-        $total = ($total * 60) + ($interval->s );
+        $total = ($total * 60) + ($interval->s);
         if ($unit == self::INTERVAL_SECONDS) {
             return (int)$total;
         }
@@ -1335,13 +1335,13 @@ 
     * @param string $short
     * @return string|NULL
     */
-    public static function date2dayName(\DateTime $date, $short=false)
+    public static function date2dayName(\DateTime $date, $short = false)
     {
         $day = $date->format('l');
         $invariant = self::getDayNamesInvariant();
         
         $idx = array_search($day, $invariant);
-        if($idx !== false) {
+        if ($idx !== false) {
             $localized = self::getDayNames($short);
             return $localized[$idx];
         }
@@ -1364,10 +1364,10 @@ 
     * @param string $short
     * @return string[]
     */
-    public static function getDayNames($short=false)
+    public static function getDayNames($short = false)
     {
-        if($short) {
-            if(!isset(self::$daysShort)) {
+        if ($short) {
+            if (!isset(self::$daysShort)) {
                 self::$daysShort = array(
                     t('Mon'),
                     t('Tue'),
@@ -1382,7 +1382,7 @@ 
             return self::$daysShort;
         }
         
-        if(!isset(self::$days)) {
+        if (!isset(self::$days)) {
             self::$days = array(
                 t('Monday'),
                 t('Tuesday'),
@@ -1407,17 +1407,17 @@ 
      */
     public static function implodeWithAnd(array $list, $sep = ', ', $conjunction = null)
     {
-        if(empty($list)) {
+        if (empty($list)) {
             return '';
         }
         
-        if(empty($conjunction)) {
+        if (empty($conjunction)) {
             $conjunction = t('and');
         }
         
         $last = array_pop($list);
-        if($list) {
-            return implode($sep, $list) . $conjunction . ' ' . $last;
+        if ($list) {
+            return implode($sep, $list).$conjunction.' '.$last;
         }
         
         return $last;
@@ -1436,7 +1436,7 @@ 
     public static function string2array(string $string) : array
     {
         $result = preg_split('//u', $string, null, PREG_SPLIT_NO_EMPTY);
-        if($result !== false) {
+        if ($result !== false) {
             return $result;
         }
         
@@ -1451,12 +1451,12 @@ 
     */
     public static function isStringHTML(string $string) : bool
     {
-        if(preg_match('%<[a-z/][\s\S]*>%siU', $string)) {
+        if (preg_match('%<[a-z/][\s\S]*>%siU', $string)) {
             return true;
         }
         
         $decoded = html_entity_decode($string);
-        if($decoded !== $string) {
+        if ($decoded !== $string) {
             return true;
         }
         
@@ -1593,7 +1593,7 @@ 
         // extract parameter names from the query string
         $result = array();
         preg_match_all('/&?([^&]+)=.*/sixU', $queryString, $result, PREG_PATTERN_ORDER);
-        if(isset($result[1])) {
+        if (isset($result[1])) {
             $paramNames = $result[1];
         }
         
@@ -1616,11 +1616,11 @@ 
         // possible naming conflicts like having both parameters "foo.bar" 
         // and "foo_bar" in the query string: since "foo.bar" would be converted
         // to "foo_bar", one of the two would be replaced.
-        if($fixRequired) 
+        if ($fixRequired) 
         {
             $counter = 1;
             $placeholders = array();
-            foreach($paramNames as $paramName)
+            foreach ($paramNames as $paramName)
             {
                  // create a unique placeholder name
                  $placeholder = '__PLACEHOLDER'.$counter.'__';
@@ -1650,13 +1650,13 @@ 
         parse_str($queryString, $parsed);
         
         // do any of the parameter names need to be fixed?
-        if(!$fixRequired) {
+        if (!$fixRequired) {
             return $parsed;
         }
         
         $keep = array();
         
-        foreach($parsed as $name => $value)
+        foreach ($parsed as $name => $value)
         {
              $keep[$table[$name]] = $value;
         }
@@ -1675,14 +1675,14 @@ 
     * @param bool $caseInsensitive
     * @return ConvertHelper_StringMatch[]
     */
-    public static function findString(string $needle, string $haystack, bool $caseInsensitive=false)
+    public static function findString(string $needle, string $haystack, bool $caseInsensitive = false)
     {
-        if($needle === '') {
+        if ($needle === '') {
             return array();
         }
         
         $function = 'mb_strpos';
-        if($caseInsensitive) {
+        if ($caseInsensitive) {
             $function = 'mb_stripos';
         }
         
@@ -1690,7 +1690,7 @@ 
         $positions = array();
         $length = mb_strlen($needle);
         
-        while( ($pos = $function($haystack, $needle, $pos)) !== false) 
+        while (($pos = $function($haystack, $needle, $pos)) !== false) 
         {
             $match = mb_substr($haystack, $pos, $length);
             $positions[] = new ConvertHelper_StringMatch($pos, $match);
@@ -1710,7 +1710,7 @@ 
     */
     public static function explodeTrim(string $delimiter, string $string) : array
     {
-        if(empty($string) || empty($delimiter)) {
+        if (empty($string) || empty($delimiter)) {
             return array();
         }
         
@@ -1718,8 +1718,8 @@ 
         $tokens = array_map('trim', $tokens);
         
         $keep = array();
-        foreach($tokens as $token) {
-            if($token !== '') {
+        foreach ($tokens as $token) {
+            if ($token !== '') {
                 $keep[] = $token;
             }
         }
@@ -1737,11 +1737,11 @@ 
     */
     public static function detectEOLCharacter(string $subjectString) : ?ConvertHelper_EOL
     {
-        if(empty($subjectString)) {
+        if (empty($subjectString)) {
             return null;
         }
         
-        if(!isset(self::$eolChars))
+        if (!isset(self::$eolChars))
         {
             $cr = chr((int)hexdec('0d'));
             $lf = chr((int)hexdec('0a'));
@@ -1772,18 +1772,18 @@ 
         
         $max = 0;
         $results = array();
-        foreach(self::$eolChars as $def) 
+        foreach (self::$eolChars as $def) 
         {
             $amount = substr_count($subjectString, $def['char']);
             
-            if($amount > $max)
+            if ($amount > $max)
             {
                 $max = $amount;
                 $results[] = $def;
             }
         }
         
-        if(empty($results)) {
+        if (empty($results)) {
             return null;
         }
         
@@ -1803,9 +1803,9 @@ 
     */
     public static function arrayRemoveKeys(array &$array, array $keys) : void
     {
-        foreach($keys as $key) 
+        foreach ($keys as $key) 
         {
-            if(array_key_exists($key, $array)) {
+            if (array_key_exists($key, $array)) {
                 unset($array[$key]); 
             }
         }
@@ -1820,17 +1820,17 @@ 
     */
     public static function isInteger($value) : bool
     {
-        if(is_int($value)) {
+        if (is_int($value)) {
             return true;
         }
         
         // booleans get converted to numbers, so they would
         // actually match the regex.
-        if(is_bool($value)) {
+        if (is_bool($value)) {
             return false;
         }
         
-        if(is_string($value) && $value !== '') {
+        if (is_string($value) && $value !== '') {
             return preg_match('/\A-?\d+\z/', $value) === 1;
         }
         
@@ -1857,7 +1857,7 @@ 
         $d2->add(new \DateInterval('PT'.$seconds.'S'));
         
         $result = $d2->diff($d1);
-        if($result !== false) {
+        if ($result !== false) {
             return $result;
         }