3v4l.org

run code in 300+ PHP versions simultaneously
<?php $values = array( array('w' => 100, 'h'=>100), array('w' => 200, 'h'=>200), array('w' => 300, 'h'=>300), ); $new_values = ''; foreach($values as $value) { $new_values[] = json_encode(array($value['w'], $value['h'])); } echo implode(',', $new_values); // [100,100],[200,200],[300,300]
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: [] operator not supported for strings in /in/6oCCf:11 Stack trace: #0 {main} thrown in /in/6oCCf on line 11
Process exited with code 255.
Output for 5.2.0 - 5.2.17, 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
[100,100],[200,200],[300,300]
Output for 5.0.0 - 5.0.5, 5.1.1 - 5.1.6
Fatal error: Call to undefined function json_encode() in /in/6oCCf on line 11
Process exited with code 255.
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/6oCCf on line 14
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_encode() in /in/6oCCf on line 11
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: json_encode() in /in/6oCCf on line 11
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_encode() in /in/6oCCf on line 11
preferences:
322.28 ms | 401 KiB | 460 Q