3v4l.org

run code in 300+ PHP versions simultaneously
<?php class foo { public function &__call($foo, $bar) { static $cnt = 0; $cnt++; return $cnt; } } $f = new foo(); $a = $f->bar(); var_dump($a); $a =& $f->bar(); var_dump($a); $a++; $b = $f->bar(); var_dump($b);
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, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
int(1) int(2) int(4)
Output for 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
int(1) Strict Standards: Only variables should be assigned by reference in /in/Dr2lF on line 12 int(2) int(3)
Output for 5.0.0 - 5.0.4
int(1) int(2) int(3)
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/Dr2lF on line 3
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
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/Dr2lF on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/Dr2lF on line 3
Process exited with code 255.
preferences:
193.37 ms | 401 KiB | 342 Q