3v4l.org

run code in 300+ PHP versions simultaneously
<?php class x { function foo() { print "foo"; } function bar() { $x = array('x', "self::foo"); call_user_func($x); $x(); } } $a = new x; $a->bar(); ?>
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Deprecated: Callables of the form ["x", "self::foo"] are deprecated in /in/JnXQF on line 8 foo Fatal error: Uncaught Error: Call to undefined method x::self::foo() in /in/JnXQF:9 Stack trace: #0 /in/JnXQF(13): x->bar() #1 {main} thrown in /in/JnXQF on line 9
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 Deprecated: Callables of the form ["x", "self::foo"] are deprecated in /in/JnXQF on line 8 foo Fatal error: Uncaught Error: Call to undefined method x::self::foo() in /in/JnXQF:9 Stack trace: #0 /in/JnXQF(13): x->bar() #1 {main} thrown in /in/JnXQF on line 9
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 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 - 8.1.28
foo Fatal error: Uncaught Error: Call to undefined method x::self::foo() in /in/JnXQF:9 Stack trace: #0 /in/JnXQF(13): x->bar() #1 {main} thrown in /in/JnXQF on line 9
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
foo Fatal error: Call to undefined method x::self::foo() in /in/JnXQF on line 9
Process exited with code 255.
Output for 5.3.0 - 5.3.29
foo Fatal error: Function name must be a string in /in/JnXQF on line 9
Process exited with code 255.
Output for 5.1.3 - 5.1.6, 5.2.0 - 5.2.17
Strict Standards: Non-static method x::foo() cannot be called statically, assuming $this from compatible context x in /in/JnXQF on line 8 foo Fatal error: Function name must be a string in /in/JnXQF on line 9
Process exited with code 255.
Output for 5.1.2
Strict Standards: Non-static method x::self::foo() cannot be called statically, assuming $this from compatible context x in /in/JnXQF on line 8 foo Fatal error: Function name must be a string in /in/JnXQF on line 9
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.1
Warning: call_user_func(x::self::foo): First argument is expected to be a valid callback in /in/JnXQF on line 8 Fatal error: Function name must be a string in /in/JnXQF on line 9
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Warning: call_user_func(x::self::foo): First argument is expected to be a valid callback in /in/JnXQF on line 8 Notice: Array to string conversion in /in/JnXQF on line 9 Fatal error: Call to undefined function: array() in /in/JnXQF on line 9
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Warning: call_user_func(x::self::foo): First argument is expected to be a valid callback in /in/JnXQF on line 8 Notice: Array to string conversion in /in/JnXQF on line 9 Fatal error: Call to undefined function: array() in /in/JnXQF on line 9
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Warning: call_user_func(x::self::foo) [http://www.php.net/function.call-user-func]: First argument is expected to be a valid callback in /in/JnXQF on line 8 Notice: Array to string conversion in /in/JnXQF on line 9 Fatal error: Call to undefined function: array() in /in/JnXQF on line 9

preferences:
269.28 ms | 401 KiB | 357 Q