存个代码

<?php
header("Content-Type:text/html;charset:utf-8");
$url='http://weixin.sogou.com/weixin?type=2&query=%E7%BE%8E%E5%A5%B3&ie=utf8&_sug_=y&_sug_type_=&w=01019900&sut=5980&sst0=1461494503992&lkt=4%2C1461494497931%2C1461494503859';

$subject= http($url);

$pattern = '~<a href="(http://mp.weixin.qq.com/.*?)" target="_blank" id="(sogou_vr_\w+)" .*?>(.*?)</a>~';

if(preg_match_all($pattern, $subject, $matches)){
	print_r($matches[1]);
}else{
	echo $subject;
}

function http($url){
	$ch = curl_init();
	curl_setopt($ch,CURLOPT_URL,$url);
	curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);
	$content=curl_exec($ch);
	curl_close($ch);
	return $content;
}
?>