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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 |
---|---|
2737 | * |
2738 | * @since 1.2.0 |
2739 | */ |
2740 | function wp_head() { |
2741 | /** |
2742 | * Prints scripts or data in the head tag on the front end. |
2743 | * |
2744 | * @since 1.5.0 |
2745 | */ |
2746 | do_action( 'wp_head' ); |
2747 | } |
2748 |
|
2749 | /** |
2750 | * Fire the wp_footer action. |
2751 | * |
2752 | * See {@see 'wp_footer'}. |
2753 | * |
2754 | * @since 1.5.1 |
2755 | */ |