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PHP中使用CURL获取页面title例子，curltitle_PHP教程
PHP中使用CURL获取页面title例子，curltitle_PHP教程
时间：2021-07-01 10:21:17
帮助过：13人阅读
PHP中使用CURL获取页面title例子，curltitle
通过PHP获取页面title内容的实战演示：
范例代码：
代码如下:
<?php
/*
功能： 取得 URL 页面上的
内容 <br />
<br />
参数：$_POST['url'] <br />
*/ <br />
<br />
// 设置最长执行的秒数 <br />
ini_set ("expect.timeout", 30); <br />
set_time_limit(30); <br />
<br />
// 检查 URL <br />
if(!isset($_POST['url']) || $_POST['url'] == ''){ <br />
echo "URL 错误"; <br />
exit; <br />
} <br />
<br />
<br />
/* 取得 URL 页面数据 */ <br />
// 初始化 CURL <br />
$ch = curl_init(); <br />
<br />
// 设置 URL <br />
curl_setopt($ch, CURLOPT_URL, $_POST['url']); <br />
// 让 curl_exec() 获取的信息以数据流的形式返回，而不是直接</pre>输出。 <br />
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); <br />
// 在发起连接前等待的时间，如果设置为0，则不等待 <br />
curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, 0); <br />
// 设置 CURL 最长执行的秒数 <br />
curl_setopt ($ch, CURLOPT_TIMEOUT, 30); <br />
<br />
// 尝试取得文件内容 <br />
$store = curl_exec ($ch); <br />
<br />
<br />
// 检查文件是否正确取得 <br />
if (curl_errno($ch)){ <br />
echo "无法取得 URL 数据"; <br />
//echo curl_error($ch);/*显示错误信息*/ <br />
exit; <br />
} <br />
<br />
// 关闭 CURL <br />
curl_close($ch); <br />
<br />
<br />
// 解析 HTML 的 <head> 区段 <br />
preg_match("/<head.*>(.*)<\/head>/smUi",$store, $htmlHeaders); <br />
if(!count($htmlHeaders)){ <br />
echo "无法解析数据中的 <head> 区段"; <br />
exit; <br />
} <br />
<br />
// 取得 <head> 中 meta 设置的编码格式 <br />
if(preg_match("/<meta[^>]*http-equiv[^>]*charset=(.*)(\"|')/Ui",$htmlHeaders[1], $results)){ <br />
$charset = $results[1]; <br />
}else{ <br />
$charset = "None"; <br />
} <br />
<br />
// 取得 <title> 中的文字 <br />
if(preg_match("/<title>(.*)<\/title>/Ui",$htmlHeaders[1], $htmlTitles)){ <br />
if(!count($htmlTitles)){ <br />
echo "无法解析 <title> 的内容"; <br />
exit; <br />
} <br />
<br />
// 将 <title> 的文字编码格式转成 UTF-8 <br />
if($charset == "None"){ <br />
$title=$htmlTitles[1]; <br />
}else{ <br />
$title=iconv($charset, "UTF-8", $htmlTitles[1]); <br />
} <br />
echo $title; <br />
} <br />
</p>
</p>
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