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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 |
|---|---|
| 7850 | * |
| 7851 | * @since 6.3.0 |
| 7852 | * |
| 7853 | * @param int|string $filtered_limit Maximum memory limit to allocate for WP-Cron. |
| 7854 | * Default `WP_MAX_MEMORY_LIMIT` or the original |
| 7855 | * php.ini `memory_limit`, whichever is higher. |
| 7856 | * Accepts an integer (bytes), or a shorthand string |
| 7857 | * notation, such as '256M'. |
| 7858 | */ |
| 7859 | $filtered_limit = apply_filters( 'cron_memory_limit', $filtered_limit ); |
| 7860 | break; |
| 7861 | |
| 7862 | default: |
| 7863 | /** |
| 7864 | * Filters the memory limit allocated for an arbitrary context. |
| 7865 | * |
| 7866 | * The dynamic portion of the hook name, `$context`, refers to an arbitrary |
| 7867 | * context passed on calling the function. This allows for plugins to define |
| 7868 | * their own contexts for raising the memory limit. |