3v4l.org

run code in 300+ PHP versions simultaneously
<?php $bad_json = '[{ "key": "value" }] [ [{ "key": "value", "obj": {} }, {} ] ] [{ "key": "value", "obj": {} }]'; $valid_json = "[" . preg_replace("~]\K(?=\s*\[)~", ",", $bad_json) . "]"; var_export(json_decode($valid_json, true));
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
array ( 0 => array ( 0 => array ( 'key' => 'value', ), ), 1 => array ( 0 => array ( 0 => array ( 'key' => 'value', 'obj' => array ( ), ), 1 => array ( ), ), ), 2 => array ( 0 => array ( 'key' => 'value', 'obj' => array ( ), ), ), )

preferences:
152.35 ms | 409 KiB | 5 Q