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run code in 200+ php & hhvm versions
Bugs & Features
<?php ini_set('error_reporting', -1); ini_set('display_errors', 'on'); class Foo { private static $a = ['b' => ['4', '5', '6'], 'c' => ['1', '2', '3']]; public function generator() { foreach (self::$a as $k => $v) { yield from $this->getType($k); } } public function getType($type) { foreach (self::$a[$type] as $t) { yield $t; } self::$a[$type] = []; } } $foo = new Foo; $generator = $foo->generator(); if ($generator->valid()) { foreach($generator as $i) { echo $i; } } else { echo 'Nothing'; } $generator = $foo->generator(); if ($generator->valid()) { foreach($generator as $i) { echo $i; } } else { echo 'Nothing'; }
based on 0mhWZ
Output for hhvm-3.15.4, 7.0.0 - 7.2.6
456123Nothing
Output for 5.6.0 - 5.6.30
Parse error: syntax error, unexpected '$this' (T_VARIABLE) in /in/9LAEo on line 14
Process exited with code 255.