3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function foo() { for ($i = 0; $i < 10 ; $i++) { yield $i; } } echo count(foo()); echo count(foo()); echo count(foo()); echo count(foo()); echo count(foo());
Output for 7.2.0
Warning: count(): Parameter must be an array or an object that implements Countable in /in/Mr2VC on line 8 1 Warning: count(): Parameter must be an array or an object that implements Countable in /in/Mr2VC on line 9 1 Warning: count(): Parameter must be an array or an object that implements Countable in /in/Mr2VC on line 10 1 Warning: count(): Parameter must be an array or an object that implements Countable in /in/Mr2VC on line 11 1 Warning: count(): Parameter must be an array or an object that implements Countable in /in/Mr2VC on line 12 1
Output for 5.5.24 - 7.1.10
11111
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '$i' (T_VARIABLE) in /in/Mr2VC on line 4
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected T_VARIABLE in /in/Mr2VC on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_VARIABLE in /in/Mr2VC on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Mr2VC on line 4
Process exited with code 255.