从内容中提取图片，php下载图片

$preg = '/(src)=([\"|\']?)([^ \"\'>]+\.(gif|jpg|jpeg|bmp|png))\\2/i';
preg_match_all($preg, $data['content'], $pics);
foreach ($pics[3] as $v){
    echo $v."<br>";
}

 

php 下载图片

public function download($url, $path = 'images/')
{
 $ch = curl_init();
 curl_setopt($ch, CURLOPT_URL, $url);
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
 curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
 $file = curl_exec($ch);
 curl_close($ch);
 $filename = pathinfo($url, PATHINFO_BASENAME);
 $resource = fopen($path . $filename, 'a');
 fwrite($resource, $file);
 fclose($resource);
}