3v4l.org

run code in 300+ PHP versions simultaneously
<?php // a list of characters, including quotes $value = implode('', ['a', "'", 'b', '"', 'c', "\n", 'd', "\\", 'e']); echo("const value = " . json_encode($value) . ";\n");
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
const value = "a'b\"c\nd\\e";

preferences:
90.04 ms | 407 KiB | 5 Q