- urlencode: documentation ( source)
- serialize: documentation ( source)
<?php
$array["a"] = "Foo";
$array["b"] = "Bar";
$array["c"] = "Baz";
$array["d"] = "Wom";
$str = serialize($array);
$strenc = urlencode($str);
print $str . "\n";
print $strenc . "\n";
?>