: str_replace(): Passing null to parameter #2 ($replace) of type array|string is deprecated in
* Handy trait provides methods to handle dynamic properties.
trait WPCF7_PocketHolder {
protected $pocket = array();
public function pull( $key ) {
if ( isset( $this->pocket[$key] ) ) {
return $this->pocket[$key];
public function push( $key, $value ) {
$this->pocket[$key] = $value;