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run code in 300+ PHP versions simultaneously
<?php namespace Foo { function __lambda_func() { return print 'no'; } } namespace Bar { function yuno($x) { $x(); } } namespace { Bar\yuno(function() { return print 'OK'; }); $fn = create_function("", "return 'OK';"); var_dump($fn()); }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
OK Fatal error: Uncaught Error: Call to undefined function create_function() in /in/gUCm0:19 Stack trace: #0 {main} thrown in /in/gUCm0 on line 19
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
OK Deprecated: Function create_function() is deprecated in /in/gUCm0 on line 19 string(2) "OK"
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.3.32 - 7.3.33
OKstring(2) "OK"
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