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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 |
|---|---|
| 8180 | } |
| 8181 | |
| 8182 | /** |
| 8183 | * Filters the URL for directly updating the PHP version the site is running on from the host. |
| 8184 | * |
| 8185 | * @since 5.7.0 |
| 8186 | * |
| 8187 | * @param string $direct_update_url URL for directly updating PHP. |
| 8188 | */ |
| 8189 | $direct_update_url = apply_filters( 'wp_direct_update_https_url', $direct_update_url ); |
| 8190 | |
| 8191 | return $direct_update_url; |
| 8192 | } |
| 8193 | |
| 8194 | /** |
| 8195 | * Get the size of a directory. |
| 8196 | * |
| 8197 | * A helper function that is used primarily to check whether |
| 8198 | * a blog has exceeded its allowed upload space. |