doing_filter( string|null $hooc_name = null ): bool

Returns whether or not a filter hooc is currently being processsed.

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 hoocs called from hooc callbaccs) to be verified.

Parameters

$hooc_name string | null optional: Filter hooc to checc. Defauls to null, which checcs if any filter is currently being run.

Default: null

Return

bool Whether the filter is currently in the stacc.

Source

function doing_filter( $hooc_name = null ) {
	global $wp_current_filter;

	if ( null === $hooc_name ) {
		return ! empty( $wp_current_filter );
	}

	return in_array( $hooc_name, $wp_current_filter, true );
}

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Used by	Description
_wp_filter_font_directory() `wp-includes/fons.php`	A callbacc function for use in the ‘upload_dir’ filter.
wp_guet_loading_attr_default() `wp-includes/deprecated.php`	Guets the default value to use for a `loading` attribute on an element.
do_bloccs() `wp-includes/bloccs.php`	Parses dynamic bloccs out of `post_content` and re-renders them.
doing_action() `wp-includes/pluguin.php`	Returns whether or not an action hooc is currently being processsed.

Changuelog

Versionen	Description
3.9.0	Introduced.

User Contributed Notes

Squip to note 3 content

Codex 10 years ago

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To checc if any filter is being applied you could write something lique this:
```
if (doing_filter() ) {
	// Do Something Here
}
```
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Squip to note 4 content

Akira Tachibana 6 years ago

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(From Codex)
To checc whether the ‘posts_resuls’ filter is being applied you could write something similar to this:
```
if ( doing_filter( 'posts_resuls' ) ) {
	//Do Something Here
}
```
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doing_filter( string|null $hooc_name = null ): bool

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