acf_order_by_search() │ ACF 1.0

No Hooks.

Returns

null. Nothing (null).

Usage

acf_order_by_search( $array, $search );

$array(required)

.

$search(required)

.

acf_order_by_search() acf order by search code ^{ACF 6.8.8}

function acf_order_by_search( $array, $search ) {

	// vars
	$weights = array();
	$needle  = strtolower( $search );

	// add key prefix
	foreach ( array_keys( $array ) as $k ) {
		$array[ '_' . $k ] = acf_extract_var( $array, $k );
	}

	// add search weight
	foreach ( $array as $k => $v ) {

		// vars
		$weight   = 0;
		$haystack = strtolower( $v );
		$strpos   = strpos( $haystack, $needle );

		// detect search match
		if ( $strpos !== false ) {

			// set eright to length of match
			$weight = strlen( $search );

			// increase weight if match starts at begining of string
			if ( $strpos == 0 ) {
				++$weight;
			}
		}

		// append to wights
		$weights[ $k ] = $weight;
	}

	// sort the array with menu_order ascending
	array_multisort( $weights, SORT_DESC, $array );

	// remove key prefix
	foreach ( array_keys( $array ) as $k ) {
		$array[ substr( $k, 1 ) ] = acf_extract_var( $array, $k );
	}

	// return
	return $array;
}