3v4l.org

run code in 500+ PHP versions simultaneously
<?php $input = new \DateTime('2017-07-17'); $firstDayOfMonth = new \DateTime($input->format('Y-m-01')); $order = (int)(($input->format('j') - 1) / 7) + 1; function ordinal($number) { $ends = array('th','st','nd','rd','th','th','th','th','th','th'); if ((($number % 100) >= 11) && (($number%100) <= 13)) return $number. 'th'; else return $number. $ends[$number % 10]; } echo ordinal($order).' '.$input->format('l');
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/dg5Xa on line 3 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/dg5Xa on line 4 Fatal error: Class 'DateTime' not found in /in/dg5Xa on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/dg5Xa on line 3 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/dg5Xa on line 4 Fatal error: Cannot instantiate non-existent class: datetime in /in/dg5Xa on line 3
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
3rd Monday
Output for 5.2.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/dg5Xa on line 3 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/dg5Xa on line 4 3rd Monday
preferences:
35.39 ms | 1151 KiB | 15 Q