3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo($path) { if ($path && $path[0] = '/') { $path = substr($path, 1); } $url = 'http://' . 'www.example.com/' . $url; echo $url; return $url; } foo('/abc'); foo('abc'); foo('/'); foo('');
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Warning: Undefined variable $url in /in/3JCRD on line 6 http://www.example.com/ Warning: Undefined variable $url in /in/3JCRD on line 6 http://www.example.com/ Warning: Undefined variable $url in /in/3JCRD on line 6 http://www.example.com/ Warning: Undefined variable $url in /in/3JCRD on line 6 http://www.example.com/
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 Warning: Undefined variable $url in /in/3JCRD on line 6 http://www.example.com/ Warning: Undefined variable $url in /in/3JCRD on line 6 http://www.example.com/ Warning: Undefined variable $url in /in/3JCRD on line 6 http://www.example.com/ Warning: Undefined variable $url in /in/3JCRD on line 6 http://www.example.com/
Output for 5.0.4 - 5.0.5, 5.1.0 - 5.1.6, 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, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: url in /in/3JCRD on line 6 http://www.example.com/ Notice: Undefined variable: url in /in/3JCRD on line 6 http://www.example.com/ Notice: Undefined variable: url in /in/3JCRD on line 6 http://www.example.com/ Notice: Undefined variable: url in /in/3JCRD on line 6 http://www.example.com/
Output for 7.3.32 - 7.3.33
http://www.example.com/http://www.example.com/http://www.example.com/http://www.example.com/
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
Notice: Undefined variable: url in /in/3JCRD on line 6 http://www.example.com/ Notice: Undefined variable: url in /in/3JCRD on line 6 http://www.example.com/ Notice: Undefined variable: url in /in/3JCRD on line 6 http://www.example.com/ Notice: Undefined variable: url in /in/3JCRD on line 6 http://www.example.com/
preferences:
279.95 ms | 402 KiB | 459 Q