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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
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769 |
|
770 | /** |
771 | * Filters the list of CSS body classes for the current post or page. |
772 | * |
773 | * @since 2.8.0 |
774 | * |
775 | * @param array $classes An array of body classes. |
776 | * @param array $class An array of additional classes added to the body. |
777 | */ |
778 | $classes = apply_filters( 'body_class', $classes, $class ); |
779 |
|
780 | return array_unique( $classes ); |
781 | } |
782 |
|
783 | /** |
784 | * Whether post requires password and correct password has been provided. |
785 | * |
786 | * @since 2.7.0 |
787 | * |