3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(count(null)); var_dump(count(0)); var_dump(count('zero')); var_dump(count(5)); class Foo implements Countable { public function count() { return 4; } } var_dump(is_array(new Foo));
Output for 7.2.0
Warning: count(): Parameter must be an array or an object that implements Countable in /in/LqmvK on line 3 int(0) Warning: count(): Parameter must be an array or an object that implements Countable in /in/LqmvK on line 4 int(1) Warning: count(): Parameter must be an array or an object that implements Countable in /in/LqmvK on line 5 int(1) Warning: count(): Parameter must be an array or an object that implements Countable in /in/LqmvK on line 6 int(1) bool(false)
Output for 5.1.0 - 7.1.10
int(0) int(1) int(1) int(1) bool(false)
Output for 5.0.5
int(0) int(1) int(1) int(1) Fatal error: Interface 'Countable' not found in /in/LqmvK on line 8
Process exited with code 255.
Output for 5.0.0 - 5.0.4
int(0) int(1) int(1) int(1) Fatal error: Class 'Countable' not found in /in/LqmvK on line 8
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/LqmvK on line 8
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting '{' in /in/LqmvK on line 8
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/LqmvK on line 8
Process exited with code 255.