php文件t.php放在目录(绝对路径)/usr/local/www/wxtest
<?php header("Content-type: text/html; charset=utf-8");
$fp=fopen('txt/test.txt', 'wb');
if($fp) fwrite($fp, "TESTSETST");
else echo "fail to create file. <br/>";
fclose($fp);
?>
在windows浏览器地址直接输入该php文件
执行结果如下：
Warning: fopen(txt/test.txt): failed to open stream: Permission denied in /usr/local/www/wxtest/t.php on line 87 fail to create file.
Warning: fclose() expects parameter 1 to be resource, boolean given in /usr/local/www/wxtest/t.php on line 90
