3v4l.org

run code in 300+ PHP versions simultaneously
<?php $result = 0; $result2 = 1; $one = function() { var_dump($result); }; $two = function() use ($result) { var_dump($result); }; $three = function() use (&$result) { var_dump($result); }; $four = function($result2) use (&$result) { var_dump($result2); }; $result++; $one(); // outputs NULL: $result is not in scope $two(); // outputs int(0): $result was copied $three(); // outputs int(1) $four();
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
Warning: Undefined variable $result in /in/OMnqb on line 6 NULL int(0) int(1) Fatal error: Uncaught ArgumentCountError: Too few arguments to function {closure}(), 0 passed in /in/OMnqb on line 22 and exactly 1 expected in /in/OMnqb:14 Stack trace: #0 /in/OMnqb(22): {closure}() #1 {main} thrown in /in/OMnqb on line 14
Process exited with code 255.
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Notice: Undefined variable: result in /in/OMnqb on line 6 NULL int(0) int(1) Fatal error: Uncaught ArgumentCountError: Too few arguments to function {closure}(), 0 passed in /in/OMnqb on line 22 and exactly 1 expected in /in/OMnqb:14 Stack trace: #0 /in/OMnqb(22): {closure}() #1 {main} thrown in /in/OMnqb on line 14
Process exited with code 255.
Output for 7.3.32 - 7.3.33, 7.4.26
NULL int(0) int(1) Fatal error: Uncaught ArgumentCountError: Too few arguments to function {closure}(), 0 passed in /in/OMnqb on line 22 and exactly 1 expected in /in/OMnqb:14 Stack trace: #0 /in/OMnqb(22): {closure}() #1 {main} thrown in /in/OMnqb on line 14
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20
Notice: Undefined variable: result in /in/OMnqb on line 6 NULL int(0) int(1) Warning: Missing argument 1 for {closure}(), called in /in/OMnqb on line 22 and defined in /in/OMnqb on line 14 Notice: Undefined variable: result2 in /in/OMnqb on line 15 NULL
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_FUNCTION in /in/OMnqb on line 5
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_FUNCTION in /in/OMnqb on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/OMnqb on line 5
Process exited with code 255.
preferences:
231.69 ms | 401 KiB | 316 Q