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run code in 300+ PHP versions simultaneously
<?php $links = array( null => array(1, 2, 3, 4, 5), 2 => array(6, 7, 8, 9), 3 => array(10, 11), 10 => array(12), 12 => array(13) ); $nodes = array( 1 => array( "title" => 1, ), 2 => array( "title" => 2, ), 3 => array( "title" => 3, ), 4 => array( "title" => 4, ), 5 => array( "title" => 5, ), 6 => array( "title" => 6, ), 7 => array( "title" => 7, ), 8 => array( "title" => 8, ), 9 => array( "title" => 9, ), 10 => array( "title" => 10, ), 11 => array( "title" => 11, ), 12 => array( "title" => 12, ), 13 => array( "title" => 13, ), ); function f($node, $nodes, $links) { if (!isset($nodes[$node]["children"])) { $nodes[$node]["children"] = array(); } if (isset($links[$node])) { foreach($links[$node] as $child) { array_push($nodes[$node]["children"], f($child)); } } return $nodes[$node]; } f(null, $nodes, $links); print_r($nodes[null]["children"]);
Output for 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
Fatal error: Uncaught ArgumentCountError: Too few arguments to function f(), 1 passed in /in/ZWbpZ on line 61 and exactly 3 expected in /in/ZWbpZ:53 Stack trace: #0 /in/ZWbpZ(61): f(1) #1 /in/ZWbpZ(68): f(NULL, Array, Array) #2 {main} thrown in /in/ZWbpZ on line 53
Process exited with code 255.
Output for 5.4.2 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20
Warning: Missing argument 2 for f(), called in /in/ZWbpZ on line 61 and defined in /in/ZWbpZ on line 53 Warning: Missing argument 3 for f(), called in /in/ZWbpZ on line 61 and defined in /in/ZWbpZ on line 53 Warning: Missing argument 2 for f(), called in /in/ZWbpZ on line 61 and defined in /in/ZWbpZ on line 53 Warning: Missing argument 3 for f(), called in /in/ZWbpZ on line 61 and defined in /in/ZWbpZ on line 53 Warning: Missing argument 2 for f(), called in /in/ZWbpZ on line 61 and defined in /in/ZWbpZ on line 53 Warning: Missing argument 3 for f(), called in /in/ZWbpZ on line 61 and defined in /in/ZWbpZ on line 53 Warning: Missing argument 2 for f(), called in /in/ZWbpZ on line 61 and defined in /in/ZWbpZ on line 53 Warning: Missing argument 3 for f(), called in /in/ZWbpZ on line 61 and defined in /in/ZWbpZ on line 53 Warning: Missing argument 2 for f(), called in /in/ZWbpZ on line 61 and defined in /in/ZWbpZ on line 53 Warning: Missing argument 3 for f(), called in /in/ZWbpZ on line 61 and defined in /in/ZWbpZ on line 53 Notice: Undefined index: in /in/ZWbpZ on line 70
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226.8 ms | 404 KiB | 272 Q