- base64_decode: documentation ( source)
<?php
echo base64_decode('WYgKGZpbGVfZXhpc3RzKCcuLi9jY291bnRfbGljZW5zZS5waHAnKSl7
aW5jbHVkZSgnLi4vY2NvdW50X2xpY2Vuc2UucGhwJyk7fWlmICghaXNzZXQoJHNldHRpbmdzWydjY291
bnRfbGljZW5zZSddKXx8IWlzX2FycmF5KCRzZXR0aW5nc1snY2NvdW50X2xpY2Vuc2UnXSkpe2VjaG8g
JzxuYXYgY2xhc3M9Im5hdmJhciBuYXZiYXItZGVmYXVsdCIgcm9sZT0ibmF2aWdhdGlvbiI+PGRpdiBj
bGFzcz0iY29udGFpbmVyIj48cCBjbGFzcz0ibmF2YmFyLXRleHQiPlBvd2VyZWQgYnkgPGEgaHJlZj0i
aHR0cDovL3d3dy5waHBqdW5reWFyZC5jb20vcGhwLWNsaWNrLWNvdW50ZXIucGhwIj5QSFAgQ2xpY2sg
Q291bnRlcjwvYT4gLSBicm91Z2h0IHRvIHlvdSBieSA8YSBocmVmPSJodHRwOi8vd3d3LnBocGp1bmt5
YXJkLmNvbS8iPkZyZWUgUEhQIFNjcmlwdHM8L2E+PC9wPjwvZGl2PjwvbmF2Pic7fQ==', "a");