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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 |
|---|---|
| 573 | * ), |
| 574 | * ), |
| 575 | * ), |
| 576 | * ); |
| 577 | * |
| 578 | * @since 4.6.0 |
| 579 | * |
| 580 | * @param bool $enable_debug_mode Whether to enable debug mode checks to occur. Default true. |
| 581 | */ |
| 582 | if ( ! apply_filters( 'enable_wp_debug_mode_checks', true ) ) { |
| 583 | return; |
| 584 | } |
| 585 | |
| 586 | if ( WP_DEBUG ) { |
| 587 | error_reporting( E_ALL ); |
| 588 | |
| 589 | if ( WP_DEBUG_DISPLAY ) { |
| 590 | ini_set( 'display_errors', 1 ); |
| 591 | } elseif ( null !== WP_DEBUG_DISPLAY ) { |