在php中我们如果要取得数据、模拟登陆、post数据等功能第一个想到的肯定是curl函数了,这个函数方便实用并且还可以多线程了下面整理了一个例子,有兴趣的朋友可参考.
例子,使用php curl获取网页数据的方法,代码如下:
"syxrrrr",
"pw" => "123456"
);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
$output = curl_exec($ch);
curl_close($ch);
echo $output;
取得数据、模拟登陆、POST数据, 代码如下:
/********************** curl 系列 ***********************/
//直接通过curl方式取得数据(包含POST、HEADER等)
/*
* $url: 如果非数组，则为http;如是数组，则为https
* $header: 头文件
* $post: post方式提交 array形式
* $cookies: 0默认无cookie,1为设置,2为获取
*/
public function curl_allinfo($urls, $header = FALSE, $post = FALSE, $cookies = 0) {
$url = is_array($urls) ? $urls['0'] : $urls;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
//带header方式提交
if ($header != FALSE) {
curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
}
//post提交方式
if ($post != FALSE) {
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
}
if ($cookies == 1) {
curl_setopt($ch, CURLOPT_COOKIEJAR, "cookiefile");
} else if ($cookies == 2) {
curl_setopt($ch, CURLOPT_COOKIEFILE, "cookiefile");
}
if (is_array($urls)) {
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
}
$data = curl_exec($ch);
curl_close($ch);
return $data;
}
最后附一个模仿搜索引擎蜘蛛来抓取网页, 代码如下:
function get_web_page($url) {
$options = array(
CURLOPT_RETURNTRANSFER => true, // return web page 返回网页
CURLOPT_HEADER => false, // 不返回头信息
CURLOPT_FOLLOWLOCATION => true, // follow redirects
CURLOPT_ENCODING => "", // handle all encodings
CURLOPT_USERAGENT => "spider", // 设置UserAgent
CURLOPT_AUTOREFERER => true, // set referer on redirect
CURLOPT_CONNECTTIMEOUT => 120, // timeout on connect 连接超时
CURLOPT_TIMEOUT => 120, // timeout on response 回复超时
CURLOPT_MAXREDIRS => 10, // stop after 10 redirects
);
$ch = curl_init($url);
curl_setopt_array($ch, $options);
$content = curl_exec($ch);
$err = curl_errno($ch);
$errmsg = curl_error($ch);
$header = curl_getinfo($ch);
curl_close($ch);
$header[''errno''] = $err;
$header[''errmsg''] = $errmsg;
$header[''content''] = $content;
return $header;
}立即学习“PHP免费学习笔记（深入）”；
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