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<?php namespace foo; $foo = function (&$arg) { var_dump($arg); }; $a = 'bar'; $b =& $a; $x = "call_user_func_array"; $x($foo, [$b]); \call_user_func_array($foo, [$b]);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Warning: foo\{closure}(): Argument #1 ($arg) must be passed by reference, value given in /in/uMI9v on line 13 string(3) "bar" Warning: foo\{closure}(): Argument #1 ($arg) must be passed by reference, value given in /in/uMI9v on line 14 string(3) "bar"
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Warning: foo\{closure}(): Argument #1 ($arg) must be passed by reference, value given in /in/uMI9v on line 13 string(3) "bar" Warning: foo\{closure}(): Argument #1 ($arg) must be passed by reference, value given in /in/uMI9v on line 14 string(3) "bar"
Output for 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Parameter 1 to foo\{closure}() expected to be a reference, value given in /in/uMI9v on line 13 string(3) "bar" Warning: Parameter 1 to foo\{closure}() expected to be a reference, value given in /in/uMI9v on line 14 string(3) "bar"
Output for 7.0.0 - 7.0.20
Warning: Parameter 1 to foo\{closure}() expected to be a reference, value given in /in/uMI9v on line 13 Warning: Parameter 1 to foo\{closure}() expected to be a reference, value given in /in/uMI9v on line 14
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
string(3) "bar" string(3) "bar"
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/uMI9v on line 13
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_STRING in /in/uMI9v on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_STRING in /in/uMI9v on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/uMI9v on line 3
Process exited with code 255.
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