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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 |
|---|---|
| 7762 | * |
| 7763 | * @since 6.3.0 |
| 7764 | * |
| 7765 | * @param int|string $filtered_limit Maximum memory limit to allocate for WP-Cron. |
| 7766 | * Default `WP_MAX_MEMORY_LIMIT` or the original |
| 7767 | * php.ini `memory_limit`, whichever is higher. |
| 7768 | * Accepts an integer (bytes), or a shorthand string |
| 7769 | * notation, such as '256M'. |
| 7770 | */ |
| 7771 | $filtered_limit = apply_filters( 'cron_memory_limit', $filtered_limit ); |
| 7772 | break; |
| 7773 | |
| 7774 | default: |
| 7775 | /** |
| 7776 | * Filters the memory limit allocated for an arbitrary context. |
| 7777 | * |
| 7778 | * The dynamic portion of the hook name, `$context`, refers to an arbitrary |
| 7779 | * context passed on calling the function. This allows for plugins to define |
| 7780 | * their own contexts for raising the memory limit. |