- var_dump: documentation ( source)
- json_decode: documentation ( source)
- preg_replace: documentation ( source)
<?php
$samplerequesturi = 'string(42) "{"ERROR_MSG":"Invalid path for user raol"}" ';
$samplerequesturi = preg_replace('@^string\(\d{1,4}\)@', '', $samplerequesturi);
var_dump($samplerequesturi);
$js = json_decode($samplerequesturi, true);
var_dump($js);