<?php
$moji = "hogehoge\nfoofoo\ntest";
echo "* before *\n";
echo $moji . "\n";
echo "\n";
$pat = '/^.*?\n/';
echo "* after *\n";
echo $result . "\n";
PD9waHAKCgkkbW9qaSA9ICJob2dlaG9nZVxuZm9vZm9vXG50ZXN0IjsKCWVjaG8gIiogYmVmb3JlICpcbiI7CgllY2hvICRtb2ppIC4gIlxuIjsKCWVjaG8gIlxuIjsKCgkkcGF0ID0gJy9eLio/XG4vJzsKCSRyZXN1bHQgPSBwcmVnX3JlcGxhY2UoJHBhdCwgJycsICRtb2ppKTsKCWVjaG8gIiogYWZ0ZXIgKlxuIjsKCWVjaG8gJHJlc3VsdCAuICJcbiI7Cg==