doing_filter( string|null $hook_name = null ): bool
- Since
- 3.9.0
- Source
wp-includes/plugin.php:396
Returns whether or not a filter hook is currently being processed.
Description
The function current_filter() only returns the most recent filter being executed.did_filter() returns the number of times a filter has been applied during the current request. This function allows detection for any filter currently being executed (regardless of whether it's the most recent filter to fire, in the case of hooks called from hook callbacks) to be verified.
Parameters
$hook_namestring|nulloptional- Filter hook to check. Defaults to null, which checks if any filter is currently being run.Default:
null
Return
bool- Whether the filter is currently in the stack.
Used by · 5
- _wp_filter_font_directory()A callback function for use in the {@see 'upload_dir'} filter.
- do_blocks()Parses dynamic blocks out of `post_content` and re-renders them.
- doing_action()Returns whether or not an action hook is currently being processed.
- wp_get_loading_attr_default()Gets the default value to use for a `loading` attribute on an element.
- wp_get_loading_optimization_attributes()Gets loading optimization attributes.
Source
function doing_filter( $hook_name = null ) { global $wp_current_filter; if ( null === $hook_name ) { return ! empty( $wp_current_filter ); } return in_array( $hook_name, $wp_current_filter, true );}History
Introduced in 3.9.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
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