3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class MenuElement { public $id; public $children = array(); public function __construct($id) { $this->id = $id; } public function addChild(MenuElement $menuElement) { array_push($this->children, $menuElement); } } $menuElement1 = new MenuElement(1); $menuElement11 = new MenuElement(11); $menuElement12 = new MenuElement(12); $menuElement121 = new MenuElement(121); $menuElement122 = new MenuElement(122); $menuElement123 = new MenuElement(123); $menuElement1211 = new MenuElement(1211); $menuElement121->addChild($menuElement1211); $menuElement12->addChild($menuElement121); $menuElement12->addChild($menuElement122); $menuElement12->addChild($menuElement123); $menuElement1->addChild($menuElement11); $menuElement1->addChild($menuElement12); function foo(MenuElement $elt, $level = 0) { if (0 == $level) echo '<ul>'.PHP_EOL; echo str_repeat(' ', $level+1).'<li>'.$elt->id; if (!count($elt->children)) { echo '</li>'.PHP_EOL; return; } echo PHP_EOL.str_repeat(' ', $level+2).'<ul>'.PHP_EOL; foreach($elt->children as $child) foo($child, $level+2); echo str_repeat(' ', $level+2).'</ul>'.PHP_EOL; echo str_repeat(' ', $level+1).'</li>'.PHP_EOL; if (0 == $level) echo '</ul>'.PHP_EOL; } foo($menuElement1);
based on TuquP
Output for 5.0.2 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
<ul> <li>1 <ul> <li>11</li> <li>12 <ul> <li>121 <ul> <li>1211</li> </ul> </li> <li>122</li> <li>123</li> </ul> </li> </ul> </li> </ul>
Output for 5.0.0 - 5.0.1
Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/YFpZc on line 30 <ul>PHP_EOL <li>1 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/YFpZc on line 36 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/YFpZc on line 36 PHP_EOL <ul>PHP_EOL <li>11 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/YFpZc on line 33 </li>PHP_EOL <li>12 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/YFpZc on line 36 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/YFpZc on line 36 PHP_EOL <ul>PHP_EOL <li>121 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/YFpZc on line 36 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/YFpZc on line 36 PHP_EOL <ul>PHP_EOL <li>1211 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/YFpZc on line 33 </li>PHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/YFpZc on line 38 </ul>PHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/YFpZc on line 39 </li>PHP_EOL <li>122 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/YFpZc on line 33 </li>PHP_EOL <li>123 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/YFpZc on line 33 </li>PHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/YFpZc on line 38 </ul>PHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/YFpZc on line 39 </li>PHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/YFpZc on line 38 </ul>PHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/YFpZc on line 39 </li>PHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/YFpZc on line 40 </ul>PHP_EOL
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/YFpZc on line 4
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 T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/YFpZc on line 4
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/YFpZc on line 4
Process exited with code 255.