- var_dump: documentation ( source)
- unserialize: documentation ( source)
- serialize: documentation ( source)
<?php
$test = NULL;
$test2 = array();
$test3 = serialize($test2);
echo $test3.PHP_EOL;
echo empty(unserialize($test3)) ? 'Yes'.PHP_EOL : 'No'.PHP_EOL;
var_dump (unserialize($test3));