curl判断网址是否存在
function url_exists($url)
{
<code>$ch = curl_init(); curl_setopt($ch, CURLOPT_URL,$url); curl_setopt($ch, CURLOPT_NOBODY, 1); // 不下载 curl_setopt($ch, CURLOPT_FAILONERROR, 1); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); return (curl_exec($ch)!==false) ? true : false; </code>
}
用这个函数判断网址是否存在,传入的url如果是字母能很快判断是否存在,传入的url是中文,判断会变得很慢,为什么?请问有什么改进方法?
回复内容:
function url_exists($url)
{
<code>$ch = curl_init(); curl_setopt($ch, CURLOPT_URL,$url); curl_setopt($ch, CURLOPT_NOBODY, 1); // 不下载 curl_setopt($ch, CURLOPT_FAILONERROR, 1); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); return (curl_exec($ch)!==false) ? true : false; </code>
}
用这个函数判断网址是否存在,传入的url如果是字母能很快判断是否存在,传入的url是中文,判断会变得很慢,为什么?请问有什么改进方法?
供参考 http://blog.csdn.net/ashelyhss/article/details/7916970
希望有所帮助~ :)
如果用curl判断的话 先自行设置规则过滤非url
然后根据返回的headers信息判断url是否存在
其次有个很方便的函数 get_headers() 非url会返回false 正常的url会返回headers信息 然后判断下http状态就行了

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