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run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(is_callable('f')); f();
Output for 7.0.0 - 7.1.0
bool(false) Fatal error: Uncaught Error: Call to undefined function f() in /in/0TM9J:3 Stack trace: #0 {main} thrown in /in/0TM9J on line 3
Process exited with code 255.
Output for 5.0.0 - 5.6.28
bool(false) Fatal error: Call to undefined function f() in /in/0TM9J on line 3
Process exited with code 255.
Output for 4.4.5 - 4.4.9
bool(false) Fatal error: Call to undefined function: f() in /in/0TM9J on line 3
Process exited with code 255.
Output for 4.3.2 - 4.4.4
bool(false) Fatal error: Call to undefined function: f() in /in/0TM9J on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
bool(false) Fatal error: Call to undefined function: f() in /in/0TM9J on line 3