acf_field::add_filter │ public │ ACF 5.0.0

Checks a function is_callable() before adding the filter, since classes that extend acf_field might not implement all filters.

Method of the class: acf_field{}

No Hooks.

Returns

null. Nothing (null).

Usage

$acf_field = new acf_field();
$acf_field->add_filter( $tag, $function_to_add, $priority, $accepted_args );

$tag(string)

The name of the filter to add the callback to.
Default: ''

$function_to_add(string)

The callback to be run when the filter is applied.
Default: ''

$priority(int)

The priority to add the filter on.
Default: 10

$accepted_args(int)

The number of args to pass to the function.
Default: 1

Changelog

acf_field::add_filter() acf field::add filter code ^{ACF 6.8.8}

public function add_filter( $tag = '', $function_to_add = '', $priority = 10, $accepted_args = 1 ) {
	// Bail early if not callable.
	if ( ! is_callable( $function_to_add ) ) {
		return;
	}

	add_filter( $tag, $function_to_add, $priority, $accepted_args );
}