<?php
$str = "Is your name O'reilly?";
// Salida: Is your name O'reilly?
echo stripslashes($str);
?>
json_decode($val, true, JSON_UNESCAPED_SLASHES);
echo stripslashes('{"test":{"test1":{"test1":[{"test2":"1","test3": "foo","test4":"bar","test5":"test7"}]}}}');
var finalData = str.replace(//g, "");