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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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364 | * This filter runs before it can be used by plugins. It is designed for |
365 | * non-web run-times. Returning false causes the `WP_DEBUG` and related |
366 | * constants to not be checked and the default PHP values for errors |
367 | * will be used unless you take care to update them yourself. |
368 | * |
369 | * @since 4.6.0 |
370 | * |
371 | * @param bool $enable_debug_mode Whether to enable debug mode checks to occur. Default true. |
372 | */ |
373 | if ( ! apply_filters( 'enable_wp_debug_mode_checks', true ) ) { |
374 | return; |
375 | } |
376 |
|
377 | if ( WP_DEBUG ) { |
378 | error_reporting( E_ALL ); |
379 |
|
380 | if ( WP_DEBUG_DISPLAY ) { |
381 | ini_set( 'display_errors', 1 ); |
382 | } elseif ( null !== WP_DEBUG_DISPLAY ) { |