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run code in 300+ PHP versions simultaneously
<?php namespace Foo { use function strlen; function strlen(string $str) : string { return strlen($str) + 1; } } namespace Foo { var_dump(strlen("abc")); }
Output for 8.5.0 - 8.5.3
Fatal error: Cannot redeclare function Foo\strlen() (previously declared as local import) in /in/g7spn on line 4 Stack trace: #0 {main}
Process exited with code 255.
Output for 8.4.1 - 8.4.18
Fatal error: Cannot redeclare function Foo\strlen() (previously declared as local import) in /in/g7spn on line 4
Process exited with code 255.
Output for 7.0.7 - 7.0.33, 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 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30
Fatal error: Cannot declare function Foo\strlen because the name is already in use in /in/g7spn on line 4
Process exited with code 255.
Output for 7.0.0 - 7.0.6
string(1) "4"
Output for 5.6.0 - 5.6.40
Parse error: syntax error, unexpected ':', expecting '{' in /in/g7spn on line 4
Process exited with code 255.
Output for 5.5.0 - 5.5.38
Parse error: syntax error, unexpected 'function' (T_FUNCTION), expecting identifier (T_STRING) or \\ (T_NS_SEPARATOR) in /in/g7spn on line 3
Process exited with code 255.
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