3v4l.org

run code in 300+ PHP versions simultaneously
<?php const function writeMsg() { echo "Hello world!"; define("CONSTANT", "Hello world."); echo CONSTANT; return "kkk"; } writeMsg(); // call the function ?>
Output for 5.4.0 - 5.4.32
Parse error: syntax error, unexpected 'function' (T_FUNCTION), expecting identifier (T_STRING) in /in/O367v on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_FUNCTION, expecting T_STRING in /in/O367v on line 3
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_CONST in /in/O367v on line 2
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_CONST in /in/O367v on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/O367v on line 2
Process exited with code 255.
preferences:
242.84 ms | 1395 KiB | 123 Q