我有两个用PHP编写的代码
<?php
error_reporting(1);
function url_exists($url)
{
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_HEADER, TRUE);
curl_setopt($ch, CURLOPT_NOBODY, TRUE);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, FALSE);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
$status = array();
preg_match('/HTTP\/.* ([0-9]+) .*/', curl_exec($ch) , $status);
return ($status[1] == 200);
}
echo "EX:".url_exists("http://www.google.com");
?>
和
<?php
error_reporting(1);
$ch = curl_init("www.yahoo.com");
curl_setopt($ch, CURLOPT_TIMEOUT, 2);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 2);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$data = curl_exec($ch);
$httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
if($httpcode>=200 && $httpcode<300)
{
echo "Found@";
}
else
{
echo "Not found";
}
?>
上述这些都不起作用吗?为什么???昨天工作得很好,为什么PHP有些时候无法解释?
我有来自php.ini的curl扩展...我试过3个不同的服务器......
我做错了什么?谢谢。
答案 0 :(得分:1)
echo "EX:".url_exists("http://www.google.com");
将始终回显EX:
,因为url_exists
返回一个布尔值。尝试:
echo "EX:" . (url_exists("http://www.google.com") ? 'true' : 'false');
也许这有用吗?
$ch = curl_init("http://www.example.com/favicon.ico");
curl_setopt($ch, CURLOPT_NOBODY, true);
curl_exec($ch);
$retcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
// $retcode > 400 -> not found, $retcode = 200, found.
curl_close($ch);