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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 |
|---|---|
| 7715 | * |
| 7716 | * @since 6.3.0 |
| 7717 | * |
| 7718 | * @param int|string $filtered_limit Maximum memory limit to allocate for WP-Cron. |
| 7719 | * Default `WP_MAX_MEMORY_LIMIT` or the original |
| 7720 | * php.ini `memory_limit`, whichever is higher. |
| 7721 | * Accepts an integer (bytes), or a shorthand string |
| 7722 | * notation, such as '256M'. |
| 7723 | */ |
| 7724 | $filtered_limit = apply_filters( 'cron_memory_limit', $filtered_limit ); |
| 7725 | break; |
| 7726 | |
| 7727 | default: |
| 7728 | /** |
| 7729 | * Filters the memory limit allocated for an arbitrary context. |
| 7730 | * |
| 7731 | * The dynamic portion of the hook name, `$context`, refers to an arbitrary |
| 7732 | * context passed on calling the function. This allows for plugins to define |
| 7733 | * their own contexts for raising the memory limit. |