<?php
$text = 'Hey @Mathw, have u talked with @Jhon today?';
preg_match_all('/@[a-z0-9]+/sim', $text , $handles_array, PREG_PATTERN_ORDER
); $text = preg_replace('/(@[a-z0-9]+)/sim', '<a href="profile.php?user=$1">$1</a>', $text); print($text);
PD9waHAKICAgICR0ZXh0ID0gJ0hleSBATWF0aHcsIGhhdmUgdSB0YWxrZWQgd2l0aCBASmhvbiB0b2RheT8nOwogICAgcHJlZ19tYXRjaF9hbGwoJy9AW2EtejAtOV0rL3NpbScsICR0ZXh0ICwgJGhhbmRsZXNfYXJyYXksIFBSRUdfUEFUVEVSTl9PUkRFUik7CiAgICAkdGV4dCA9IHByZWdfcmVwbGFjZSgnLyhAW2EtejAtOV0rKS9zaW0nLCAnPGEgaHJlZj0icHJvZmlsZS5waHA/dXNlcj0kMSI+JDE8L2E+JywgJHRleHQpOwogICAgcHJpbnQoJHRleHQpOwogICAgcHJpbnRfcigkaGFuZGxlc19hcnJheVswXSk7