3v4l.org

run code in 300+ PHP versions simultaneously
<?php $data = array("string0" => 'just a string', "string1" => "abc\n\n\n", "string2" => "\tdef", "string3" => "\n\n\n", "string4" => "\t\n"); echo json_encode($data);
Output for 5.5.0 - 5.5.38, 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 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
{"string0":"just a string","string1":"abc\n\n\n","string2":"\tdef","string3":"\n\n\n","string4":"\t\n"}
preferences:
159.18 ms | 404 KiB | 339 Q