acf_is_field() │ ACF 5.7.10

acf_is_field

Returns true if the given params match a field.

No Hooks.

Returns

true|false.

Usage

acf_is_field( $field, $id );
$field(array)
The field array.
Default: false
$id(mixed)
An optional identifier to search for.
Default: ''

Changelog

Since 5.7.10 Introduced.

acf_is_field() code ACF 6.8.8

acf/includes/acf-field-functions.php 
function acf_is_field( $field = false, $id = '' ) {
	return (
		is_array( $field )
		&& isset( $field['key'] )
		&& isset( $field['name'] )
	);
}