Online PHP editor | refs for XrNPi

<?php $datetimes = [ '2003-01-28 01:23:45', '2007-04-04', '0000-00-00 00:00:00', '0000-00-00', '', null ]; foreach ($datetimes as $datetime) { sscanf($datetime, '%s', $sscanf); var_export( [ 'substr' => substr($datetime, 0, 10), 'explode' => explode(' ', $datetime, 2)[0], 'sscanf' => $sscanf, 'preg_replace' => preg_replace('/ .+/', '', $datetime), 'format' => (new \DateTime($datetime))->format('Y-m-d'), 'date&strtotime' => date("Y-m-d", strtotime($datetime)), 'strtok' => strtok($datetime, ' '), 'strstr' => strstr($datetime . ' ', ' ', true), ] ); unset($sscanf); echo "\n---\n"; }