3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo preg_replace('/(\w+?)(__)(\w+?)/i', '.', 'aluno_pobre__casado__novata').PHP_EOL; $patterns = array ('/(19|20)(\d{2})-(\d{1,2})-(\d{1,2})/', '/^\s*{(\w+)}\s*=/'); $replace = array ('\3/\4/\1\2', '$\1 ='); echo preg_replace($patterns, $replace, '{startDate} = 1999-5-27'); ?>

preferences:
45.03 ms | 402 KiB | 5 Q