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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 |
|---|---|
| 2652 | * |
| 2653 | * @since 2.0.4 |
| 2654 | * |
| 2655 | * @param string $message Error message. |
| 2656 | * @param string $title Error title. |
| 2657 | * @param string|array $args Optional arguements to control behaviour. |
| 2658 | */ |
| 2659 | function wp_die( $message, $title = '', $args = array() ) { |
| 2660 | if ( function_exists( 'apply_filters' ) ) { |
| 2661 | $function = apply_filters( 'wp_die_handler', '_default_wp_die_handler'); |
| 2662 | }else { |
| 2663 | $function = '_default_wp_die_handler'; |
| 2664 | } |
| 2665 | |
| 2666 | call_user_func( $function, $message, $title, $args ); |
| 2667 | } |
| 2668 | |
| 2669 | /** |
| 2670 | * Kill WordPress execution and display HTML message with error message. |