$params = array_map( 'cssfilter', $_GET );
// Defaults
-$selector = isset( $params['selector'] ) ? $params['selector'] : '.mw-test-example';
-$property = isset( $params['prop'] ) ? $params['prop'] : 'float';
-$value = isset( $params['val'] ) ? $params['val'] : 'right';
+$selector = $params['selector'] ?? '.mw-test-example';
+$property = $params['prop'] ?? 'float';
+$value = $params['val'] ?? 'right';
$wait = isset( $params['wait'] ) ? (int)$params['wait'] : 0; // seconds
sleep( $wait );