3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { function bar() { echo "Hello World\n"; } } $cb = array(new Foo, "bar"); $cb(); $cb = "strlen"; var_dump($cb("foo"));
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.26, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 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, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Hello World int(3)
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Fatal error: Function name must be a string in /in/62BeK on line 12
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Notice: Array to string conversion in /in/62BeK on line 12 Fatal error: Call to undefined function: array() in /in/62BeK on line 12
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Notice: Array to string conversion in /in/62BeK on line 12 Fatal error: Call to undefined function: array() in /in/62BeK on line 12
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Notice: Array to string conversion in /in/62BeK on line 12 Fatal error: Call to undefined function: array() in /in/62BeK on line 12
preferences:
243.63 ms | 401 KiB | 370 Q