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Buttons::create()   A
last analyzed

Complexity

Conditions 5
Paths 4

Size

Total Lines 12
Code Lines 8

Duplication

Lines 0
Ratio 0 %

Importance

Changes 1
Bugs 0 Features 0
Metric Value
cc 5
eloc 8
c 1
b 0
f 0
nc 4
nop 0
dl 0
loc 12
rs 9.6111
1
<?php
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Class file names should be based on the class name with "class-" prepended. Expected class-buttons.php, but found buttons.php.
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This file is missing a doc comment.
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namespace PodloveSubscribeButton\Settings;
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class Buttons {
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Missing doc comment for class Buttons
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	public static function page() {
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Missing doc comment for function page()
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8
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		$action = null !== filter_input(INPUT_GET, 'action') ? filter_input(INPUT_GET, 'action') : null;
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Equals sign not aligned with surrounding assignments; expected 5 spaces but found 1 space

This check looks for multiple assignments in successive lines of code. It will report an issue if the operators are not in a straight line.

To visualize

$a = "a";
$ab = "ab";
$abc = "abc";

will produce issues in the first and second line, while this second example

$a   = "a";
$ab  = "ab";
$abc = "abc";

will produce no issues.

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Expected 1 spaces after opening parenthesis; 0 found
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Expected 1 spaces before closing parenthesis; 0 found
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10
		$is_network = is_network_admin();
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		if ( $action == 'confirm_delete' && null !== filter_input(INPUT_GET, 'button') ) {
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Found: ==. Use strict comparisons (=== or !==).
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introduced by
Use Yoda Condition checks, you must.
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Expected 1 spaces after opening parenthesis; 0 found
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Expected 1 spaces before closing parenthesis; 0 found
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13
			$button = ( $is_network === true ? \PodloveSubscribeButton\Model\NetworkButton::find_by_id( (int) filter_input(INPUT_GET, 'button') ) : \PodloveSubscribeButton\Model\Button::find_by_id( (int) filter_input(INPUT_GET, 'button') ) );
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Use Yoda Condition checks, you must.
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Expected 1 spaces after opening parenthesis; 0 found
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Expected 1 spaces before closing parenthesis; 0 found
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14
			?>
15
			<div class="updated">
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				<p>
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					<strong>
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						<?php printf( __( 'You selected to delete the button "%s". Please confirm this action.', 'podlove-subscribe-button' ), sanitize_title($button->title) ) ?>
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Inline PHP statement must end with a semicolon
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All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '__'.
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A gettext call containing placeholders was found, but was not accompanied by a "translators:" comment on the line above to clarify the meaning of the placeholders.
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All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found 'sanitize_title'.
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Expected 1 spaces after opening parenthesis; 0 found
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Expected 1 spaces before closing parenthesis; 0 found
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19
					</strong>
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				</p>
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				<p>
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					<?php echo self::get_action_link( $button, __( 'Delete button permanently', 'podlove-subscribe-button' ), 'delete', 'button' ) ?>
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Inline PHP statement must end with a semicolon
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introduced by
All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found 'self'.
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introduced by
All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '__'.
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23
					<?php echo self::get_action_link( $button, __( "Don't change anything", 'podlove-subscribe-button' ), 'keep', 'button-primary' ) ?>
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Inline PHP statement must end with a semicolon
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introduced by
All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found 'self'.
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introduced by
All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '__'.
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24
				</p>
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			</div>
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			<?php
27
		}
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		?>
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		<div class="wrap">
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			<h2><?php echo __( 'Podlove Subscribe Button', 'podlove-subscribe-button' ); ?> <a href="?page=<?php echo filter_input(INPUT_GET, 'page'); ?>&amp;action=new&amp;network=<?php echo $is_network; ?>" class="add-new-h2"><?php _e( 'Add New', 'podlove-subscribe-button' ); ?></a></h2>
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introduced by
All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '__'.
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introduced by
All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$is_network'.
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introduced by
All output should be run through an escaping function (like esc_html_e() or esc_attr_e()), found '_e'.
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Expected 1 spaces after opening parenthesis; 0 found
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Expected 1 spaces before closing parenthesis; 0 found
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31
			<?php
32
33
			switch ( $action ) {
34
				case 'new':   self::new_template();  break;
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Coding Style introduced by
The case body in a switch statement must start on the line following the statement.

According to the PSR-2, the body of a case statement must start on the line immediately following the case statement.

switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;

}

To learn more about the PSR-2 coding standard, please refer to the PHP-Fig.

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It is generally recommended to place each PHP statement on a line by itself.

Let’s take a look at an example:

// Bad
$a = 5; $b = 6; $c = 7;

// Good
$a = 5;
$b = 6;
$c = 7;
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35
				case 'edit':  self::edit_template(); break;
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Coding Style introduced by
The case body in a switch statement must start on the line following the statement.

According to the PSR-2, the body of a case statement must start on the line immediately following the case statement.

switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;

}

To learn more about the PSR-2 coding standard, please refer to the PHP-Fig.

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Coding Style introduced by
It is generally recommended to place each PHP statement on a line by itself.

Let’s take a look at an example:

// Bad
$a = 5; $b = 6; $c = 7;

// Good
$a = 5;
$b = 6;
$c = 7;
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36
				case 'index': self::view_template(); break;
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Coding Style introduced by
The case body in a switch statement must start on the line following the statement.

According to the PSR-2, the body of a case statement must start on the line immediately following the case statement.

switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;

}

To learn more about the PSR-2 coding standard, please refer to the PHP-Fig.

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Coding Style introduced by
It is generally recommended to place each PHP statement on a line by itself.

Let’s take a look at an example:

// Bad
$a = 5; $b = 6; $c = 7;

// Good
$a = 5;
$b = 6;
$c = 7;
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37
				default:      self::view_template(); break;
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Coding Style introduced by
The default body in a switch statement must start on the line following the statement.

According to the PSR-2, the body of a default statement must start on the line immediately following the statement.

switch ($expr) {
    default:
        doSomething(); //right
        break;
}


switch ($expr) {
    default:

        doSomething(); //wrong
        break;
}

To learn more about the PSR-2 coding standard, please refer to the PHP-Fig.

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Coding Style introduced by
It is generally recommended to place each PHP statement on a line by itself.

Let’s take a look at an example:

// Bad
$a = 5; $b = 6; $c = 7;

// Good
$a = 5;
$b = 6;
$c = 7;
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38
			}
39
			?>
40
		</div>
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		<?php
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	}
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Expected 1 blank line before closing function brace; 0 found
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43
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	/**
45
	 * Process form: save/update a format
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	 */
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	public static function save() {
48
		if ( null == filter_input(INPUT_GET, 'button') )
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Coding Style Best Practice introduced by
It is generally a best practice to always use braces with control structures.

Adding braces to control structures avoids accidental mistakes as your code changes:

// Without braces (not recommended)
if (true)
    doSomething();

// Recommended
if (true) {
    doSomething();
}
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Found: ==. Use strict comparisons (=== or !==).
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Expected 1 spaces after opening parenthesis; 0 found
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Expected 1 spaces before closing parenthesis; 0 found
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49
			return;
50
51
        if (!wp_verify_nonce($_REQUEST['_psb_nonce'])) {
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No space after opening parenthesis is prohibited
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Expected 1 space before "!"; 0 found
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Expected 1 space after "!"; 0 found
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Expected 1 spaces after opening parenthesis; 0 found
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introduced by
Detected usage of a non-validated input variable: $_REQUEST
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introduced by
Missing wp_unslash() before sanitization.
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introduced by
Detected usage of a non-sanitized input variable: $_REQUEST
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Expected 1 spaces before closing parenthesis; 0 found
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No space before closing parenthesis is prohibited
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52
            return;
53
        }
54
55
		$post = filter_input_array(INPUT_POST);
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Expected 1 spaces after opening parenthesis; 0 found
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Expected 1 spaces before closing parenthesis; 0 found
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56
57
		$button = ( filter_input(INPUT_GET, 'network') === '1' ? \PodloveSubscribeButton\Model\NetworkButton::find_by_id( filter_input(INPUT_GET, 'button') ) : \PodloveSubscribeButton\Model\Button::find_by_id( filter_input(INPUT_GET, 'button') ) );
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Expected 1 spaces after opening parenthesis; 0 found
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Expected 1 spaces before closing parenthesis; 0 found
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58
		$button->update_attributes( $post['podlove_button'] );
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Bug introduced by
The method update_attributes() does not exist on null. ( Ignorable by Annotation )

If this is a false-positive, you can also ignore this issue in your code via the ignore-call  annotation

58
		$button->/** @scrutinizer ignore-call */ 
59
           update_attributes( $post['podlove_button'] );

This check looks for calls to methods that do not seem to exist on a given type. It looks for the method on the type itself as well as in inherited classes or implemented interfaces.

This is most likely a typographical error or the method has been renamed.

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60
		if ( isset($post['submit_and_stay']) ) {
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Expected 1 spaces after opening parenthesis; 0 found
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Expected 1 spaces before closing parenthesis; 0 found
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61
			self::redirect( 'edit', $button->id, array( 'network' => filter_input(INPUT_GET, 'network') ), ( filter_input(INPUT_GET, 'network') === '1' ? true : false ) );
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Expected 1 spaces after opening parenthesis; 0 found
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Expected 1 spaces before closing parenthesis; 0 found
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62
		} else {
63
			self::redirect( 'index', $button->id, array(), ( filter_input(INPUT_GET, 'network') === '1' ? true : false ) );
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Expected 1 spaces after opening parenthesis; 0 found
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Expected 1 spaces before closing parenthesis; 0 found
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64
		}
65
	}
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Expected 1 blank line before closing function brace; 0 found
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66
	/**
67
	 * Process form: create a format
68
	 */
69
	public static function create() {
70
		global $wpdb;
71
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		$post = filter_input_array(INPUT_POST);
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Expected 1 spaces after opening parenthesis; 0 found
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Expected 1 spaces before closing parenthesis; 0 found
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73
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		$button = ( filter_input(INPUT_GET, 'network') === '1' ? new \PodloveSubscribeButton\Model\NetworkButton : new \PodloveSubscribeButton\Model\Button );
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Expected 1 spaces after opening parenthesis; 0 found
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Expected 1 spaces before closing parenthesis; 0 found
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introduced by
Parenthesis should always be used when instantiating a new object.
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75
		$button->update_attributes( $post['podlove_button'] );
76
77
		if ( isset($post['submit_and_stay']) ) {
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Expected 1 spaces after opening parenthesis; 0 found
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Expected 1 spaces before closing parenthesis; 0 found
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78
			self::redirect( 'edit', $button->id, array( 'network' => filter_input(INPUT_GET, 'network') ), ( filter_input(INPUT_GET, 'network') === '1' ? true : false ) );
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Expected 1 spaces after opening parenthesis; 0 found
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Expected 1 spaces before closing parenthesis; 0 found
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79
		} else {
80
			self::redirect( 'index', $button->id, array(), ( filter_input(INPUT_GET, 'network') === '1' ? true : false ) );
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Expected 1 spaces after opening parenthesis; 0 found
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Expected 1 spaces before closing parenthesis; 0 found
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81
		}
82
	}
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Expected 1 blank line before closing function brace; 0 found
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83
84
	/**
85
	 * Process form: delete a format
86
	 */
87
	public static function delete() {
88
		if ( null ==  filter_input(INPUT_GET, 'button') )
0 ignored issues
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Coding Style Best Practice introduced by
It is generally a best practice to always use braces with control structures.

Adding braces to control structures avoids accidental mistakes as your code changes:

// Without braces (not recommended)
if (true)
    doSomething();

// Recommended
if (true) {
    doSomething();
}
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introduced by
Found: ==. Use strict comparisons (=== or !==).
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introduced by
Expected 1 space after "=="; 2 found
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Expected 1 spaces after opening parenthesis; 0 found
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Expected 1 spaces before closing parenthesis; 0 found
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89
			return;
90
91
		$button = ( filter_input(INPUT_GET, 'network') === '1' ? \PodloveSubscribeButton\Model\NetworkButton::find_by_id( filter_input(INPUT_GET, 'button') ) : \PodloveSubscribeButton\Model\Button::find_by_id( filter_input(INPUT_GET, 'button') ) );
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Expected 1 spaces after opening parenthesis; 0 found
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Expected 1 spaces before closing parenthesis; 0 found
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92
		$button->delete();
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94
		self::redirect( 'index', null, array(), ( filter_input(INPUT_GET, 'network') === '1' ? true : false ) );
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Expected 1 spaces after opening parenthesis; 0 found
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Expected 1 spaces before closing parenthesis; 0 found
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95
	}
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Expected 1 blank line before closing function brace; 0 found
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96
97
	/**
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Doc comment for parameter "$action" missing
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Doc comment for parameter "$button_id" missing
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Doc comment for parameter "$params" missing
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Coding Style Documentation introduced by
Doc comment for parameter "$network" missing
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98
	 * Helper method: redirect to a certain page.
99
	 */
100
	public static function redirect( $action, $button_id = null, $params = array(), $network = false ) {
101
		$page    = ( $network ? '/network/settings' : 'options-general' ) . '.php?page=' . filter_input(INPUT_GET, 'page');
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Coding Style introduced by
Equals sign not aligned with surrounding assignments; expected 3 spaces but found 4 spaces

This check looks for multiple assignments in successive lines of code. It will report an issue if the operators are not in a straight line.

To visualize

$a = "a";
$ab = "ab";
$abc = "abc";

will produce issues in the first and second line, while this second example

$a   = "a";
$ab  = "ab";
$abc = "abc";

will produce no issues.

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Expected 1 spaces after opening parenthesis; 0 found
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Expected 1 spaces before closing parenthesis; 0 found
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102
		$show    = ( $button_id ) ? '&button=' . $button_id : '';
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Coding Style introduced by
Equals sign not aligned with surrounding assignments; expected 3 spaces but found 4 spaces

This check looks for multiple assignments in successive lines of code. It will report an issue if the operators are not in a straight line.

To visualize

$a = "a";
$ab = "ab";
$abc = "abc";

will produce issues in the first and second line, while this second example

$a   = "a";
$ab  = "ab";
$abc = "abc";

will produce no issues.

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103
		$action  = '&action=' . $action;
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Coding Style introduced by
Equals sign not aligned with surrounding assignments; expected 1 space but found 2 spaces

This check looks for multiple assignments in successive lines of code. It will report an issue if the operators are not in a straight line.

To visualize

$a = "a";
$ab = "ab";
$abc = "abc";

will produce issues in the first and second line, while this second example

$a   = "a";
$ab  = "ab";
$abc = "abc";

will produce no issues.

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104
105
		array_walk( $params, function(&$value, $key) { $value = "&$key=$value"; } );
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No space after opening parenthesis is prohibited
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Expected 1 spaces after opening parenthesis; 0 found
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introduced by
No space before closing parenthesis is prohibited
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Coding Style introduced by
Opening brace must be the last content on the line
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Coding Style introduced by
Closing brace of nested function must be on a new line
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Coding Style introduced by
It is generally recommended to place each PHP statement on a line by itself.

Let’s take a look at an example:

// Bad
$a = 5; $b = 6; $c = 7;

// Good
$a = 5;
$b = 6;
$c = 7;
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106
107
		wp_redirect( admin_url( $page . $show . $action . implode( '', $params ) ) );
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introduced by
wp_redirect() found. Using wp_safe_redirect(), along with the allowed_redirect_hosts filter if needed, can help avoid any chances of malicious redirects within code. It is also important to remember to call exit() after a redirect so that no other unwanted code is executed.
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108
	}
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Expected 1 blank line before closing function brace; 0 found
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109
110
	public static function process_form() {
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Method name "Buttons::process_form" is not in camel caps format
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Missing doc comment for function process_form()
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111
		if ( null === filter_input(INPUT_GET, 'button') )
0 ignored issues
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Coding Style Best Practice introduced by
It is generally a best practice to always use braces with control structures.

Adding braces to control structures avoids accidental mistakes as your code changes:

// Without braces (not recommended)
if (true)
    doSomething();

// Recommended
if (true) {
    doSomething();
}
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Expected 1 spaces after opening parenthesis; 0 found
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Expected 1 spaces before closing parenthesis; 0 found
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112
			return;
113
114
        $action = ( null !== filter_input(INPUT_GET, 'action') ? filter_input(INPUT_GET, 'action') : null );
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Expected 1 spaces after opening parenthesis; 0 found
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Expected 1 spaces before closing parenthesis; 0 found
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115
116
        if (!in_array($action, ['save', 'create', 'delete'])) {
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No space after opening parenthesis is prohibited
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Expected 1 space before "!"; 0 found
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introduced by
Expected 1 space after "!"; 0 found
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Expected 1 spaces after opening parenthesis; 0 found
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introduced by
Not using strict comparison for in_array; supply true for third argument.
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introduced by
Missing space after array opener.
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introduced by
Missing space before array closer.
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Expected 1 spaces before closing parenthesis; 0 found
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introduced by
No space before closing parenthesis is prohibited
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117
            return;
118
        }
119
120
        if (!wp_verify_nonce($_REQUEST['_psb_nonce'])) {
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No space after opening parenthesis is prohibited
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introduced by
Expected 1 space before "!"; 0 found
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introduced by
Expected 1 space after "!"; 0 found
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Coding Style introduced by
Expected 1 spaces after opening parenthesis; 0 found
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introduced by
Detected usage of a non-validated input variable: $_REQUEST
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introduced by
Missing wp_unslash() before sanitization.
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introduced by
Detected usage of a non-sanitized input variable: $_REQUEST
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Expected 1 spaces before closing parenthesis; 0 found
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No space before closing parenthesis is prohibited
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121
            return;
122
        }            
123
124
		if ( $action === 'save' ) {
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introduced by
Use Yoda Condition checks, you must.
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125
			self::save();
126
		} elseif ( $action === 'create' ) {
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Use Yoda Condition checks, you must.
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127
			self::create();
128
		} elseif ( $action === 'delete' ) {
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Use Yoda Condition checks, you must.
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129
			self::delete();
130
		}
131
	}
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Expected 1 blank line before closing function brace; 0 found
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132
133
	public static function new_template() {
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Method name "Buttons::new_template" is not in camel caps format
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Missing doc comment for function new_template()
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134
		if ( filter_input(INPUT_GET, 'network') == '1' ) {
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Expected 1 spaces after opening parenthesis; 0 found
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Expected 1 spaces before closing parenthesis; 0 found
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Found: ==. Use strict comparisons (=== or !==).
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135
			$button = new \PodloveSubscribeButton\Model\NetworkButton;
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Parenthesis should always be used when instantiating a new object.
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136
		} else {
137
			$button = new \PodloveSubscribeButton\Model\Button;
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Parenthesis should always be used when instantiating a new object.
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138
		}
139
140
		echo '<h3>' . __( 'New Subscribe button', 'podlove-subscribe-button' ) . '</h3>'.
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introduced by
All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '__'.
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Concat operator must be surrounded by a single space
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141
				__( 'Please fill in your Podcast metadata to create a Podlove Subscription button', 'podlove-subscribe-button' );
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introduced by
All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '__'.
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142
		self::form_template( $button, 'create' );
143
	}
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145
	public static function edit_template() {
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146
		if ( filter_input(INPUT_GET, 'network') == '1' ) {
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147
			$button = \PodloveSubscribeButton\Model\NetworkButton::find_by_id( filter_input(INPUT_GET, 'button') );
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148
		} else {
149
			$button = \PodloveSubscribeButton\Model\Button::find_by_id( filter_input(INPUT_GET, 'button') );
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150
		}
151
152
		echo '<h3>' . sprintf( __( 'Edit Subscribe button: %s', 'podlove-subscribe-button' ), sanitize_text_field($button->title) ) . '</h3>';
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All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found 'sanitize_text_field'.
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153
		self::form_template( $button, 'save' );
154
	}
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155
156
	public static function view_template() {
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157
		$is_network = is_network_admin();
158
		?>
159
		<p><?php _e('This plugin allows easy inclusion of the Podlove Subscribe Button. Put it in your sidebar with a simple widget or include the button in pages and/or posts with a simple shortcode.', 'podlove-subscribe-button' ); ?></p>
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160
		<p><?php _e('Start by adding a button for each of your podcasts here. You can then add the button to your sidebar by adding the <a href="widgets.php">Podlove Subscribe Button widget</a>.', 'podlove-subscribe-button' ); ?></p>
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161
		<p><?php _e('If you want to display the button inside a page or article, you can also use the <code>[podlove-subscribe-button]</code> shortcode anywhere.', 'podlove-subscribe-button' ); ?></p>
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162
		<?php
163
		$table = new \PodloveSubscribeButton\Button_List_Table;
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164
		$table->prepare_items();
165
		$table->display();
166
167
		// Get the global button settings (with fallback to default values)
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168
		$settings = \PodloveSubscribeButton\Model\Button::get_global_setting_with_fallback();
169
170
		if ( ! $is_network ) :
171
		?>
172
		<h3><?php _e('Default Settings', 'podlove-subscribe-button' ); ?></h3>
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173
		<form method="post" action="options.php">
174
			<?php settings_fields( 'podlove-subscribe-button' ); ?>
175
			<?php do_settings_sections( 'podlove-subscribe-button' ); ?>
176
			<table class="form-table">
177
				<tr valign="top">
178
				<th scope="row"><label for="podlove_subscribe_button_default_size"><?php _e('Size', 'podlove-subscribe-button' ); ?></label></th>
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179
				<td>
180
					<select name="podlove_subscribe_button_default_size" id="podlove_subscribe_button_default_size">
181
						<?php foreach (\PodloveSubscribeButton\Model\Button::$size as $value => $description) : ?>
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182
							<option value="<?php echo $value; ?>" <?php echo ( $settings['size'] == $value ? "selected" : '' ); ?>><?php echo $description; ?></option>
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The string literal selected does not require double quotes, as per coding-style, please use single quotes.

PHP provides two ways to mark string literals. Either with single quotes 'literal' or with double quotes "literal". The difference between these is that string literals in double quotes may contain variables with are evaluated at run-time as well as escape sequences.

String literals in single quotes on the other hand are evaluated very literally and the only two characters that needs escaping in the literal are the single quote itself (\') and the backslash (\\). Every other character is displayed as is.

Double quoted string literals may contain other variables or more complex escape sequences.

<?php

$singleQuoted = 'Value';
$doubleQuoted = "\tSingle is $singleQuoted";

print $doubleQuoted;

will print an indented: Single is Value

If your string literal does not contain variables or escape sequences, it should be defined using single quotes to make that fact clear.

For more information on PHP string literals and available escape sequences see the PHP core documentation.

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183
						<?php endforeach; ?>
184
					</select>
185
				</td>
186
				</tr>
187
				<tr valign="top">
188
				<th scope="row"><label for="podlove_subscribe_button_default_autowidth"><?php _e('Autowidth', 'podlove-subscribe-button' ); ?></label></th>
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189
				<td>
190
					<input type="checkbox" name="podlove_subscribe_button_default_autowidth" id="podlove_subscribe_button_default_autowidth" <?php echo ( $settings['autowidth'] == 'on' ? 'checked' : '' ) ?> />
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191
				</td>
192
				</tr>
193
				<tr valign="top">
194
				<th scope="row"><label for="podlove_subscribe_button_default_color"><?php _e('Color', 'podlove-subscribe-button' ); ?></label></th>
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195
				<td>
196
					<input id="podlove_subscribe_button_default_color" name="podlove_subscribe_button_default_color" class="podlove_subscribe_button_color" value="<?php echo $settings['color'] ?>" />
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197
				</td>
198
				</tr>
199
				<tr valign="top">
200
				<th scope="row"><label for="podlove_subscribe_button_default_style"><?php _e('Style', 'podlove-subscribe-button' ); ?></label></th>
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201
				<td>
202
					<select name="podlove_subscribe_button_default_style" id="podlove_subscribe_button_default_style">
203
						<?php foreach (\PodloveSubscribeButton\Model\Button::$style as $value => $description) : ?>
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204
							<option value="<?php echo $value; ?>" <?php echo ( $settings['style'] == $value ? "selected" : '' ); ?>><?php echo $description; ?></option>
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Found: ==. Use strict comparisons (=== or !==).
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Coding Style Comprehensibility introduced by
The string literal selected does not require double quotes, as per coding-style, please use single quotes.

PHP provides two ways to mark string literals. Either with single quotes 'literal' or with double quotes "literal". The difference between these is that string literals in double quotes may contain variables with are evaluated at run-time as well as escape sequences.

String literals in single quotes on the other hand are evaluated very literally and the only two characters that needs escaping in the literal are the single quote itself (\') and the backslash (\\). Every other character is displayed as is.

Double quoted string literals may contain other variables or more complex escape sequences.

<?php

$singleQuoted = 'Value';
$doubleQuoted = "\tSingle is $singleQuoted";

print $doubleQuoted;

will print an indented: Single is Value

If your string literal does not contain variables or escape sequences, it should be defined using single quotes to make that fact clear.

For more information on PHP string literals and available escape sequences see the PHP core documentation.

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All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$description'.
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205
						<?php endforeach; ?>
206
					</select>
207
				</td>
208
				</tr>
209
				<tr valign="top">
210
				<th scope="row"><label for="podlove_subscribe_button_default_format"><?php _e('Format', 'podlove-subscribe-button' ); ?></label></th>
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211
				<td>
212
					<select name="podlove_subscribe_button_default_format" id="podlove_subscribe_button_default_format">
213
						<?php foreach (\PodloveSubscribeButton\Model\Button::$format as $value => $description) : ?>
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214
							<option value="<?php echo $value; ?>" <?php echo ( $settings['format'] == $value ? "selected" : '' ); ?>><?php echo $description; ?></option>
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All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$value'.
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introduced by
Found: ==. Use strict comparisons (=== or !==).
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Coding Style Comprehensibility introduced by
The string literal selected does not require double quotes, as per coding-style, please use single quotes.

PHP provides two ways to mark string literals. Either with single quotes 'literal' or with double quotes "literal". The difference between these is that string literals in double quotes may contain variables with are evaluated at run-time as well as escape sequences.

String literals in single quotes on the other hand are evaluated very literally and the only two characters that needs escaping in the literal are the single quote itself (\') and the backslash (\\). Every other character is displayed as is.

Double quoted string literals may contain other variables or more complex escape sequences.

<?php

$singleQuoted = 'Value';
$doubleQuoted = "\tSingle is $singleQuoted";

print $doubleQuoted;

will print an indented: Single is Value

If your string literal does not contain variables or escape sequences, it should be defined using single quotes to make that fact clear.

For more information on PHP string literals and available escape sequences see the PHP core documentation.

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All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$description'.
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215
						<?php endforeach; ?>
216
					</select>
217
				</td>
218
				</tr>
219
			</table>
220
			<?php submit_button(); ?>
221
		</form>
222
		<?php
223
		endif;
224
	}
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225
226
	private static function form_template( $button, $action ) {
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227
		// Enqueue Scripts for Media Manager
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228
		wp_enqueue_media();
229
		// Adjust if is_network
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230
		$is_network = is_network_admin();
231
		?>
232
		<form method="post" action="<?php echo ( $is_network === true ? '/wp-admin/network/settings' : 'options-general' ) ?>.php?page=podlove-subscribe-button&button=<?php echo $button->id; ?>&action=<?php echo $action; ?>&network=<?php echo $is_network; ?>">
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All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$button'.
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All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$action'.
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All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$is_network'.
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233
            <?php wp_nonce_field(-1, '_psb_nonce'); ?>
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234
			<input type="hidden" value="<?php echo $button->id; ?>" name="podlove_button[id]" />
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235
			<table class="form-table" border="0" cellspacing="0">
236
					<tbody>
237
					<tr>
238
						<td scope="row">
239
							<label for="podlove_button_name"><?php _e('Button ID', 'podlove-subscribe-button' ); ?></label>
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240
						</td>
241
						<td>
242
							<input type="text" class="regular-text" id="podlove_button_name" name="podlove_button[name]" value="<?php echo esc_attr($button->name); ?>" />
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243
							<br /><span class="description"><?php _e('The ID will be used as in internal identifier for shortcodes.', 'podlove-subscribe-button' ); ?></span>
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244
						</td>
245
					</tr>
246
					<tr>
247
						<td scope="row">
248
							<label for="podlove_button_title"><?php _e('Podcast Title', 'podlove-subscribe-button' ); ?></label>
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249
						</td>
250
						<td>
251
							<input type="text" class="regular-text" id="podlove_button_title" name="podlove_button[title]" value="<?php echo esc_attr($button->title); ?>" />
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252
						</td>
253
					</tr>
254
					<tr>
255
						<td scope="row">
256
							<label for="podlove_button_subtitle"><?php _e('Podcast Subtitle', 'podlove-subscribe-button' ); ?></label>
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257
						</td>
258
						<td>
259
							<input type="text" class="regular-text" id="podlove_button_subtitle" name="podlove_button[subtitle]" value="<?php echo esc_attr($button->subtitle); ?>" />
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260
						</td>
261
					</tr>
262
					<tr>
263
						<td scope="row">
264
							<label for="podlove_button_description"><?php _e('Podcast Description', 'podlove-subscribe-button' ); ?></label>
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265
						</td>
266
						<td>
267
							<textarea class="autogrow" cols="40" rows="3" id="podlove_button_description" name="podlove_button[description]"><?php echo esc_attr($button->description); ?></textarea>
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268
						</td>
269
					</tr>
270
					<tr>
271
						<td scope="row">
272
							<label for="podlove-button-cover"><?php _e('Podcast Image URL', 'podlove-subscribe-button' ); ?></label>
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273
						</td>
274
						<td>
275
							<input type="text" class="regular-text" id="podlove-button-cover" name="podlove_button[cover]" value="<?php echo esc_attr($button->cover); ?>" />
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276
							<a id="Podlove_cover_image_select" class="button" href="#">Select</a>
277
							<br /><img src="<?php echo sanitize_text_field($button->cover); ?>" alt="" style="width: 200px" />
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All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found 'sanitize_text_field'.
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278
							<script type="text/javascript">
279
								(function($) {
280
									$("#podlove-button-cover").on( 'change', function() {
281
										url = $(this).val();
282
										$(this).parent().find("img").attr("src", url);
283
									} );
284
								})(jQuery);
285
							</script>
286
						</td>
287
					</tr>
288
					<tr>
289
						<td scope="row">
290
							<label for="feeds_table"><?php _e('Podcast Feeds', 'podlove-subscribe-button' ); ?></label>
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291
						</td>
292
						<td>
293
							<table id="feeds_table" class="podlove_alternating" border="0" cellspacing="0">
294
								<thead>
295
									<tr>
296
										<th><?php _e('URL', 'podlove-subscribe-button' ); ?></th>
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297
										<th><?php _e('iTunes feed ID', 'podlove-subscribe-button' ); ?></th>
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298
										<th><?php _e('Media format', 'podlove-subscribe-button' ); ?></th>
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299
										<th><?php _e('Actions', 'podlove-subscribe-button' ); ?></th>
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All output should be run through an escaping function (like esc_html_e() or esc_attr_e()), found '_e'.
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300
									</tr>
301
								</thead>
302
								<tbody id="feeds_table_body">
303
								</tbody>
304
							</table>
305
							<input type="button" class="button add_feed" value="+" />
306
							<p><span class="description"><?php _e('Provide all Feeds with their corresponding Media File Type. The Subscribe Button will then automatically provide the most suitable feed to the subscriber with respect to their Podcast Client.', 'podlove-subscribe-button' ); ?></span></p>
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307
						</td>
308
					</tr>
309
					</tbody>
310
				</table>
311
				<input name="submit" id="submit" class="button button-primary" value="<?php _e('Save Changes', 'podlove-subscribe-button' ); ?>" type="submit" />
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All output should be run through an escaping function (like esc_html_e() or esc_attr_e()), found '_e'.
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312
				<input type="submit" name="submit_and_stay" id="submit_and_stay" class="button" value="<?php _e('Save Changes and Continue Editing', 'podlove-subscribe-button' ); ?>"  />
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All output should be run through an escaping function (like esc_html_e() or esc_attr_e()), found '_e'.
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313
314
				<script type="text/template" id="feed_line_template">
315
					<tr>
316
						<td>
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							<input type="text" class="regular-text" name="podlove_button[feeds][{{id}}][url]" value="{{url}}" />
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						</td>
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						<td>
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						<input type="text" class="regular-text" name="podlove_button[feeds][{{id}}][itunesfeedid]" value="{{itunesfeedid}}" />
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						</td>
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						<td>
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							<select class="regular-text podlove-media-format" name="podlove_button[feeds][{{id}}][format]">
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								<?php
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									foreach (\PodloveSubscribeButton\MediaTypes::$audio as $id => $audio) {
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No space after opening parenthesis is prohibited
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										echo "<option value='".$id."'>".$audio['title']."</option>\n";
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All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$id'.
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All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$audio'.
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									}
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								?>
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							</select>
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						</td>
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						<td><i class="clickable podlove-icon-remove"></i></td>
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					</tr>
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				</script>
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				<script type="text/javascript">
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					var feeds = <?php echo json_encode($button->feeds); ?>;
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Expected 1 spaces after opening parenthesis; 0 found
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				</script>
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		</form>
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		<?php
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	}
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	public static function get_action_link( $button, $title, $action = 'edit', $type = 'link' ) {
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Method name "Buttons::get_action_link" is not in camel caps format
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Missing doc comment for function get_action_link()
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		return sprintf(
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			'<a href="?page=%s&action=%s&button=%s&network='.is_network_admin().'&_psb_nonce=%s"%s>' . $title . '</a>',
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			filter_input(INPUT_GET, 'page'),
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			$action,
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			$button->id,
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            wp_create_nonce(),
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			$type == 'button' ? ' class="button"' : ''
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Found: ==. Use strict comparisons (=== or !==).
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Use Yoda Condition checks, you must.
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		);
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	}
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}
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