Archief - PHP: probleem met schrijven in bestand

<?php
	$add = $_POST['addNewItem'];

	if(isset($add)) {
	$link = $_POST['link'];
	$link = strip_tags($link);
	$hp_format = "";

	$hp_format ="<a href=" . $link . " target='_new'>" . $link . "</a><br />";

	$linkfile = "links.htm";

	$fp = fopen($linkfile, "w+");
	flock($fp, 1);
	fwrite($fp, $hp_format);
	flock($fp, 3);
	fclose($fp);
	}
?>

#To acquire a shared lock (reader), set operation to LOCK_SH (set to 1 prior to PHP 4.0.1).
#To acquire an exclusive lock (writer), set operation to LOCK_EX (set to 2 prior to PHP 4.0.1).
#To release a lock (shared or exclusive), set operation to LOCK_UN (set to 3 prior to PHP 4.0.1).