- var_dump: documentation ( source)
- str_replace: documentation ( source)
- json_encode: documentation ( source)
- array_walk: documentation ( source)
<?php
$array = array("lol","lulz","42","\\blub");
array_walk($array, function(&$elm) use($array) {
$elm = str_replace('\\', '\\\\', $elm);
var_dump($array);
});
$value = json_encode($array);
var_dump($value);