3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('one', 'two', 'three'); foreach ($a as &$b) {} print_r($b); echo EOL; foreach ($a as $b) {} print_r($b);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
three Fatal error: Uncaught Error: Undefined constant "EOL" in /in/kDheP:12 Stack trace: #0 {main} thrown in /in/kDheP on line 12
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 three Fatal error: Uncaught Error: Undefined constant "EOL" in /in/kDheP:12 Stack trace: #0 {main} thrown in /in/kDheP on line 12
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
three Warning: Use of undefined constant EOL - assumed 'EOL' (this will throw an Error in a future version of PHP) in /in/kDheP on line 12 EOLtwo
Output for 5.3.28 - 5.3.29, 5.4.20 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25
three Notice: Use of undefined constant EOL - assumed 'EOL' in /in/kDheP on line 12 EOLtwo
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.27, 5.4.0 - 5.4.19
three Notice: Use of undefined constant EOL - assumed 'EOL' in /in/1W1RN on line 12 EOLtwo
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/1W1RN on line 7
Process exited with code 255.
Output for 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected '&', expecting T_VARIABLE or '$' in /in/1W1RN on line 7
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/1W1RN on line 7
Process exited with code 255.
Output for 4.3.0
Parse error: parse error, unexpected '&', expecting T_VARIABLE or '$' in /in/kDheP on line 7
Process exited with code 255.

preferences:
246.03 ms | 401 KiB | 329 Q