3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $json = '{"1":[1,"7"],"2":[2,"10"],"3":[3,"17"],"4":[4,"8"],"5":[5,"10"],"6":[6,"11"],"7":[7,"13"],"8":[8,"9"],"9":[9,"13"],"10":[10,"15"],"11":[11,"14"],"12":[12,"16"],"13":[13,"16"],"14":[14,"18"],"15":[15,"10"],"16":[16,"54"],"17":[17,"76"],"18":[18,"57"],"19":[19,"73"],"20":[20,"61"],"21":[21,"45"],"22":[22,"56"],"23":[23,"72"],"24":[24,"44"],"25":[25,"2"],"26":[26,"29"],"27":[27,"3"],"28":[28,"1"],"29":[29,"5"],"30":[30,0]}'; $arr = json_decode($json,true); foreach($arr as $key=>$val) { $val[1] = (int)$val[1]; $arr[$key] = $val; } echo json_encode(array_values($arr));
Output for 5.2.0 - 5.6.28, hhvm-3.10.0, 7.0.0 - 7.1.0
[[1,7],[2,10],[3,17],[4,8],[5,10],[6,11],[7,13],[8,9],[9,13],[10,15],[11,14],[12,16],[13,16],[14,18],[15,10],[16,54],[17,76],[18,57],[19,73],[20,61],[21,45],[22,56],[23,72],[24,44],[25,2],[26,29],[27,3],[28,1],[29,5],[30,0]]
Output for hhvm-3.12.0

Process exited with code 137.
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_decode() in /in/pdqfF on line 4
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_decode() in /in/pdqfF on line 4
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: json_decode() in /in/pdqfF on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_decode() in /in/pdqfF on line 4