post-thumbnail-template.php ➔ get_the_post_thumbnail_caption() - Code Metrics - ntwb/wordpress - Measure and Improve Code Quality continuously with Scrutinizer

post-thumbnail-template.php ➔ get_the_post_thumbnail_caption() A
last analyzed 2017-06-24 04:06 UTC

↳ Parent: Project

Complexity

Conditions	3
Paths	3

Size

Total Lines	14
Code Lines	8

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	3
eloc	8
c	0
b	0
f	0
nc	3
nop	1
dl	0
loc	14
rs	9.4285

<?php
/**
 * WordPress Post Thumbnail Template Functions.
 *
 * Support for post thumbnails.
 * Theme's functions.php must call add_theme_support( 'post-thumbnails' ) to use these.
 *
 * @package WordPress
 * @subpackage Template
 */

/**
 * Check if post has an image attached.
 *
 * @since 2.9.0
 * @since 4.4.0 `$post` can be a post ID or WP_Post object.
 *
 * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global `$post`.
 * @return bool Whether the post has an image attached.
 */
function has_post_thumbnail( $post = null ) {
	return (bool) get_post_thumbnail_id( $post );
}

/**
 * Retrieve post thumbnail ID.
 *
 * @since 2.9.0
 * @since 4.4.0 `$post` can be a post ID or WP_Post object.
 *
 * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global `$post`.
 * @return string|int Post thumbnail ID or empty string.
 */
function get_post_thumbnail_id( $post = null ) {
	$post = get_post( $post );
	if ( ! $post ) {
		return '';
	}
	return get_post_meta( $post->ID, '_thumbnail_id', true );
}

/**
 * Display the post thumbnail.
 *
 * When a theme adds 'post-thumbnail' support, a special 'post-thumbnail' image size
 * is registered, which differs from the 'thumbnail' image size managed via the
 * Settings > Media screen.
 *
 * When using the_post_thumbnail() or related functions, the 'post-thumbnail' image
 * size is used by default, though a different size can be specified instead as needed.
 *
 * @since 2.9.0
 *
 * @see get_the_post_thumbnail()
 *
 * @param string|array $size Optional. Image size to use. Accepts any valid image size, or
 *                           an array of width and height values in pixels (in that order).
 *                           Default 'post-thumbnail'.
 * @param string|array $attr Optional. Query string or array of attributes. Default empty.
 */
function the_post_thumbnail( $size = 'post-thumbnail', $attr = '' ) {
	echo get_the_post_thumbnail( null, $size, $attr );
}

/**
 * Update cache for thumbnails in the current loop.
 *
 * @since 3.2.0
 *
 * @global WP_Query $wp_query
 *
 * @param WP_Query $wp_query Optional. A WP_Query instance. Defaults to the $wp_query global.
 */
function update_post_thumbnail_cache( $wp_query = null ) {
	if ( ! $wp_query )
		$wp_query = $GLOBALS['wp_query'];

	if ( $wp_query->thumbnails_cached )
		return;

	$thumb_ids = array();
	foreach ( $wp_query->posts as $post ) {
		if ( $id = get_post_thumbnail_id( $post->ID ) )
			$thumb_ids[] = $id;
	}

	if ( ! empty ( $thumb_ids ) ) {
		_prime_post_caches( $thumb_ids, false, true );
	}

	$wp_query->thumbnails_cached = true;
}

/**
 * Retrieve the post thumbnail.
 *
 * When a theme adds 'post-thumbnail' support, a special 'post-thumbnail' image size
 * is registered, which differs from the 'thumbnail' image size managed via the
 * Settings > Media screen.
 *
 * When using the_post_thumbnail() or related functions, the 'post-thumbnail' image
 * size is used by default, though a different size can be specified instead as needed.
 *
 * @since 2.9.0
 * @since 4.4.0 `$post` can be a post ID or WP_Post object.
 *
 * @param int|WP_Post  $post Optional. Post ID or WP_Post object.  Default is global `$post`.
 * @param string|array $size Optional. Image size to use. Accepts any valid image size, or
 *                           an array of width and height values in pixels (in that order).
 *                           Default 'post-thumbnail'.
 * @param string|array $attr Optional. Query string or array of attributes. Default empty.
 * @return string The post thumbnail image tag.
 */
function get_the_post_thumbnail( $post = null, $size = 'post-thumbnail', $attr = '' ) {
	$post = get_post( $post );
	if ( ! $post ) {
		return '';
	}
	$post_thumbnail_id = get_post_thumbnail_id( $post );

	/**
	 * Filters the post thumbnail size.
	 *
	 * @since 2.9.0
	 *
	 * @param string|array $size The post thumbnail size. Image size or array of width and height
	 *                           values (in that order). Default 'post-thumbnail'.
	 */
	$size = apply_filters( 'post_thumbnail_size', $size );

	if ( $post_thumbnail_id ) {

		/**
		 * Fires before fetching the post thumbnail HTML.
		 *
		 * Provides "just in time" filtering of all filters in wp_get_attachment_image().
		 *
		 * @since 2.9.0
		 *
		 * @param int          $post_id           The post ID.
		 * @param string       $post_thumbnail_id The post thumbnail ID.
		 * @param string|array $size              The post thumbnail size. Image size or array of width
		 *                                        and height values (in that order). Default 'post-thumbnail'.
		 */
		do_action( 'begin_fetch_post_thumbnail_html', $post->ID, $post_thumbnail_id, $size );
		if ( in_the_loop() )
			update_post_thumbnail_cache();
		$html = wp_get_attachment_image( $post_thumbnail_id, $size, false, $attr );

		/**
		 * Fires after fetching the post thumbnail HTML.
		 *
		 * @since 2.9.0
		 *
		 * @param int          $post_id           The post ID.
		 * @param string       $post_thumbnail_id The post thumbnail ID.
		 * @param string|array $size              The post thumbnail size. Image size or array of width
		 *                                        and height values (in that order). Default 'post-thumbnail'.
		 */
		do_action( 'end_fetch_post_thumbnail_html', $post->ID, $post_thumbnail_id, $size );

	} else {
		$html = '';
	}
	/**
	 * Filters the post thumbnail HTML.
	 *
	 * @since 2.9.0
	 *
	 * @param string       $html              The post thumbnail HTML.
	 * @param int          $post_id           The post ID.
	 * @param string       $post_thumbnail_id The post thumbnail ID.
	 * @param string|array $size              The post thumbnail size. Image size or array of width and height
	 *                                        values (in that order). Default 'post-thumbnail'.
	 * @param string       $attr              Query string of attributes.
	 */
	return apply_filters( 'post_thumbnail_html', $html, $post->ID, $post_thumbnail_id, $size, $attr );
}

/**
 * Return the post thumbnail URL.
 *
 * @since 4.4.0
 *
 * @param int|WP_Post  $post Optional. Post ID or WP_Post object.  Default is global `$post`.
 * @param string|array $size Optional. Registered image size to retrieve the source for or a flat
 *                           array of height and width dimensions. Default 'post-thumbnail'.
 * @return string|false Post thumbnail URL or false if no URL is available.
 */
function get_the_post_thumbnail_url( $post = null, $size = 'post-thumbnail' ) {
	$post_thumbnail_id = get_post_thumbnail_id( $post );
	if ( ! $post_thumbnail_id ) {
		return false;
	}
	return wp_get_attachment_image_url( $post_thumbnail_id, $size );
}

/**
 * Display the post thumbnail URL.
 *
 * @since 4.4.0
 *
 * @param string|array $size Optional. Image size to use. Accepts any valid image size,
 *                           or an array of width and height values in pixels (in that order).
 *                           Default 'post-thumbnail'.
 */
function the_post_thumbnail_url( $size = 'post-thumbnail' ) {
	$url = get_the_post_thumbnail_url( null, $size );
	if ( $url ) {
''   == false // true
''   == null  // true
'ab' == false // false
'ab' == null  // false

// It is often better to use strict comparison
'' === false // false
'' === null  // false
		echo esc_url( $url );
	}
}

/**
 * Returns the post thumbnail caption.
 *
 * @since 4.6.0
 *
 * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global `$post`.
 * @return string Post thumbnail caption.
 */
function get_the_post_thumbnail_caption( $post = null ) {
	$post_thumbnail_id = get_post_thumbnail_id( $post );
	if ( ! $post_thumbnail_id ) {
		return '';
	}

	$caption = wp_get_attachment_caption( $post_thumbnail_id );

	if ( ! $caption ) {
''   == false // true
''   == null  // true
'ab' == false // false
'ab' == null  // false

// It is often better to use strict comparison
'' === false // false
'' === null  // false
		$caption = '';
	}

	return $caption;
}

/**
 * Displays the post thumbnail caption.
 *
 * @since 4.6.0
 *
 * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global `$post`.
 */
function the_post_thumbnail_caption( $post = null ) {
	/**
	 * Filters the displayed post thumbnail caption.
	 *
	 * @since 4.6.0
	 *
	 * @param string $caption Caption for the given attachment.
	 */
	echo apply_filters( 'the_post_thumbnail_caption', get_the_post_thumbnail_caption( $post ) );
}


1			<?php
2			/**
3			* WordPress Post Thumbnail Template Functions.
4			*
5			* Support for post thumbnails.
6			* Theme's functions.php must call add_theme_support( 'post-thumbnails' ) to use these.
7			*
8			* @package WordPress
9			* @subpackage Template
10			*/
11
12			/**
13			* Check if post has an image attached.
14			*
15			* @since 2.9.0
16			* @since 4.4.0 `$post` can be a post ID or WP_Post object.
17			*
18			* @param int\|WP_Post $post Optional. Post ID or WP_Post object. Default is global `$post`.
19			* @return bool Whether the post has an image attached.
20			*/
21			function has_post_thumbnail( $post = null ) {
22			return (bool) get_post_thumbnail_id( $post );
23			}
24
25			/**
26			* Retrieve post thumbnail ID.
27			*
28			* @since 2.9.0
29			* @since 4.4.0 `$post` can be a post ID or WP_Post object.
30			*
31			* @param int\|WP_Post $post Optional. Post ID or WP_Post object. Default is global `$post`.
32			* @return string\|int Post thumbnail ID or empty string.
33			*/
34			function get_post_thumbnail_id( $post = null ) {
35			$post = get_post( $post );
36			if ( ! $post ) {
37			return '';
38			}
39			return get_post_meta( $post->ID, '_thumbnail_id', true );
40			}
41
42			/**
43			* Display the post thumbnail.
44			*
45			* When a theme adds 'post-thumbnail' support, a special 'post-thumbnail' image size
46			* is registered, which differs from the 'thumbnail' image size managed via the
47			* Settings > Media screen.
48			*
49			* When using the_post_thumbnail() or related functions, the 'post-thumbnail' image
50			* size is used by default, though a different size can be specified instead as needed.
51			*
52			* @since 2.9.0
53			*
54			* @see get_the_post_thumbnail()
55			*
56			* @param string\|array $size Optional. Image size to use. Accepts any valid image size, or
57			* an array of width and height values in pixels (in that order).
58			* Default 'post-thumbnail'.
59			* @param string\|array $attr Optional. Query string or array of attributes. Default empty.
60			*/
61			function the_post_thumbnail( $size = 'post-thumbnail', $attr = '' ) {
62			echo get_the_post_thumbnail( null, $size, $attr );
63			}
64
65			/**
66			* Update cache for thumbnails in the current loop.
67			*
68			* @since 3.2.0
69			*
70			* @global WP_Query $wp_query
71			*
72			* @param WP_Query $wp_query Optional. A WP_Query instance. Defaults to the $wp_query global.
73			*/
74			function update_post_thumbnail_cache( $wp_query = null ) {
75			if ( ! $wp_query )
76			$wp_query = $GLOBALS['wp_query'];
77
78			if ( $wp_query->thumbnails_cached )
79			return;
80
81			$thumb_ids = array();
82			foreach ( $wp_query->posts as $post ) {
83			if ( $id = get_post_thumbnail_id( $post->ID ) )
84			$thumb_ids[] = $id;
85			}
86
87			if ( ! empty ( $thumb_ids ) ) {
88			_prime_post_caches( $thumb_ids, false, true );
89			}
90
91			$wp_query->thumbnails_cached = true;
92			}
93
94			/**
95			* Retrieve the post thumbnail.
96			*
97			* When a theme adds 'post-thumbnail' support, a special 'post-thumbnail' image size
98			* is registered, which differs from the 'thumbnail' image size managed via the
99			* Settings > Media screen.
100			*
101			* When using the_post_thumbnail() or related functions, the 'post-thumbnail' image
102			* size is used by default, though a different size can be specified instead as needed.
103			*
104			* @since 2.9.0
105			* @since 4.4.0 `$post` can be a post ID or WP_Post object.
106			*
107			* @param int\|WP_Post $post Optional. Post ID or WP_Post object. Default is global `$post`.
108			* @param string\|array $size Optional. Image size to use. Accepts any valid image size, or
109			* an array of width and height values in pixels (in that order).
110			* Default 'post-thumbnail'.
111			* @param string\|array $attr Optional. Query string or array of attributes. Default empty.
112			* @return string The post thumbnail image tag.
113			*/
114			function get_the_post_thumbnail( $post = null, $size = 'post-thumbnail', $attr = '' ) {
115			$post = get_post( $post );
116			if ( ! $post ) {
117			return '';
118			}
119			$post_thumbnail_id = get_post_thumbnail_id( $post );
120
121			/**
122			* Filters the post thumbnail size.
123			*
124			* @since 2.9.0
125			*
126			* @param string\|array $size The post thumbnail size. Image size or array of width and height
127			* values (in that order). Default 'post-thumbnail'.
128			*/
129			$size = apply_filters( 'post_thumbnail_size', $size );
130
131			if ( $post_thumbnail_id ) {
132
133			/**
134			* Fires before fetching the post thumbnail HTML.
135			*
136			* Provides "just in time" filtering of all filters in wp_get_attachment_image().
137			*
138			* @since 2.9.0
139			*
140			* @param int $post_id The post ID.
141			* @param string $post_thumbnail_id The post thumbnail ID.
142			* @param string\|array $size The post thumbnail size. Image size or array of width
143			* and height values (in that order). Default 'post-thumbnail'.
144			*/
145			do_action( 'begin_fetch_post_thumbnail_html', $post->ID, $post_thumbnail_id, $size );
146			if ( in_the_loop() )
147			update_post_thumbnail_cache();
148			$html = wp_get_attachment_image( $post_thumbnail_id, $size, false, $attr );
149
150			/**
151			* Fires after fetching the post thumbnail HTML.
152			*
153			* @since 2.9.0
154			*
155			* @param int $post_id The post ID.
156			* @param string $post_thumbnail_id The post thumbnail ID.
157			* @param string\|array $size The post thumbnail size. Image size or array of width
158			* and height values (in that order). Default 'post-thumbnail'.
159			*/
160			do_action( 'end_fetch_post_thumbnail_html', $post->ID, $post_thumbnail_id, $size );
161
162			} else {
163			$html = '';
164			}
165			/**
166			* Filters the post thumbnail HTML.
167			*
168			* @since 2.9.0
169			*
170			* @param string $html The post thumbnail HTML.
171			* @param int $post_id The post ID.
172			* @param string $post_thumbnail_id The post thumbnail ID.
173			* @param string\|array $size The post thumbnail size. Image size or array of width and height
174			* values (in that order). Default 'post-thumbnail'.
175			* @param string $attr Query string of attributes.
176			*/
177			return apply_filters( 'post_thumbnail_html', $html, $post->ID, $post_thumbnail_id, $size, $attr );
178			}
179
180			/**
181			* Return the post thumbnail URL.
182			*
183			* @since 4.4.0
184			*
185			* @param int\|WP_Post $post Optional. Post ID or WP_Post object. Default is global `$post`.
186			* @param string\|array $size Optional. Registered image size to retrieve the source for or a flat
187			* array of height and width dimensions. Default 'post-thumbnail'.
188			* @return string\|false Post thumbnail URL or false if no URL is available.
189			*/
190			function get_the_post_thumbnail_url( $post = null, $size = 'post-thumbnail' ) {
191			$post_thumbnail_id = get_post_thumbnail_id( $post );
192			if ( ! $post_thumbnail_id ) {
193			return false;
194			}
195			return wp_get_attachment_image_url( $post_thumbnail_id, $size );
196			}
197
198			/**
199			* Display the post thumbnail URL.
200			*
201			* @since 4.4.0
202			*
203			* @param string\|array $size Optional. Image size to use. Accepts any valid image size,
204			* or an array of width and height values in pixels (in that order).
205			* Default 'post-thumbnail'.
206			*/
207			function the_post_thumbnail_url( $size = 'post-thumbnail' ) {
208			$url = get_the_post_thumbnail_url( null, $size );
209			if ( $url ) {
			0 ignored issues – show Bug Best Practice introduced 2016-03-16 22:18 UTC by Report Bug Copy Issue Report The expression `$url` of type `false\|string` is loosely compared to `true`; this is ambiguous if the string can be empty. You might want to explicitly use `!== false` instead. In PHP, under loose comparison (like `==`, or `!=`, or `switch` conditions), values of different types might be equal. For `string` values, the empty string `''` is a special case, in particular the following results might be unexpected: '' == false // true '' == null // true 'ab' == false // false 'ab' == null // false // It is often better to use strict comparison '' === false // false '' === null // false Loading history...
210			echo esc_url( $url );
211			}
212			}
213
214			/**
215			* Returns the post thumbnail caption.
216			*
217			* @since 4.6.0
218			*
219			* @param int\|WP_Post $post Optional. Post ID or WP_Post object. Default is global `$post`.
220			* @return string Post thumbnail caption.
221			*/
222			function get_the_post_thumbnail_caption( $post = null ) {
223			$post_thumbnail_id = get_post_thumbnail_id( $post );
224			if ( ! $post_thumbnail_id ) {
225			return '';
226			}
227
228			$caption = wp_get_attachment_caption( $post_thumbnail_id );
229
230			if ( ! $caption ) {
			0 ignored issues – show Bug Best Practice introduced 2016-08-12 14:54 UTC by Report Bug Copy Issue Report The expression `$caption` of type `string\|false` is loosely compared to `false`; this is ambiguous if the string can be empty. You might want to explicitly use `=== false` instead. In PHP, under loose comparison (like `==`, or `!=`, or `switch` conditions), values of different types might be equal. For `string` values, the empty string `''` is a special case, in particular the following results might be unexpected: '' == false // true '' == null // true 'ab' == false // false 'ab' == null // false // It is often better to use strict comparison '' === false // false '' === null // false Loading history...
231			$caption = '';
232			}
233
234			return $caption;
235			}
236
237			/**
238			* Displays the post thumbnail caption.
239			*
240			* @since 4.6.0
241			*
242			* @param int\|WP_Post $post Optional. Post ID or WP_Post object. Default is global `$post`.
243			*/
244			function the_post_thumbnail_caption( $post = null ) {
245			/**
246			* Filters the displayed post thumbnail caption.
247			*
248			* @since 4.6.0
249			*
250			* @param string $caption Caption for the given attachment.
251			*/
252			echo apply_filters( 'the_post_thumbnail_caption', get_the_post_thumbnail_caption( $post ) );
253			}
254

ntwb / wordpress

post-thumbnail-template.php ➔ get_the_post_thumbnail_caption() A last analyzed 2017-06-24 04:06 UTC

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post-thumbnail-template.php ➔ get_the_post_thumbnail_caption() A
last analyzed 2017-06-24 04:06 UTC