apply_filters( 'post_class', string[] $classes, string[] $css_class, int $post_id )

Parameters

$classesstring[]

An array of post class names.

$css_classstring[]

An array of additional class names added to the post.

$post_idint

The post ID.

Fired at · 1

• wp-includes/post-template.php:607get_post_class()

Source

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601	 * @since 2.7.0602	 *603	 * @param string[] $classes   An array of post class names.604	 * @param string[] $css_class An array of additional class names added to the post.605	 * @param int      $post_id   The post ID.606	 */607	$classes = apply_filters( 'post_class', $classes, $css_class, $post->ID );608 609	return array_unique( $classes );610}611 612/**613 * Displays the class names for the body element.

History

Introduced in 2.7.0. Unchanged from 6.7.7 through 7.1.0.

1. 6.7.7
2. 6.8.8
3. 6.9.7
4. 7.0.4
5. 7.1.0

Signature, return type and hooks compared across 5 parsed releases.

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