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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 |
|---|---|
| 96 | |
| 97 | /** |
| 98 | * Prints scripts or data after the default footer scripts. |
| 99 | * |
| 100 | * The dynamic portion of the hook name, `$hook_suffix`, |
| 101 | * refers to the global hook suffix of the current page. |
| 102 | * |
| 103 | * @since 2.8.0 |
| 104 | */ |
| 105 | do_action( "admin_footer-{$hook_suffix}" ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores |
| 106 | |
| 107 | // get_site_option() won't exist when auto upgrading from <= 2.7. |
| 108 | if ( function_exists( 'get_site_option' ) |
| 109 | && false === get_site_option( 'can_compress_scripts' ) |
| 110 | ) { |
| 111 | compression_test(); |
| 112 | } |
| 113 | |
| 114 | ?> |