php擷取遠程圖片的兩種 CURL方式和sockets方式擷取遠程圖片_php技巧

方式1：sockets

複製代碼 代碼如下:

$a = "yun_qi_img/thum-f3ccdd27d2000e3f9255a7e3e2c4880020110622095243.jpg";
$local = 'socket1.gif';
$aa = getImg($a,$local);
/*
*@ 完整的圖片地址
*@ 要儲存的檔案名稱
*/
function getImg( $url = "", $filename = "" ) {
if(is_dir(basename($filename))) {
echo "The Dir was not exits";
Return false;
}
//去除URL串連上面可能的引號
$url = preg_replace( '/(?:^[\'"]+|[\'"\/]+$)/', '', $url );
if (!extension_loaded('sockets')) return false;
//擷取url各相關資訊
preg_match( '/http:\/\/([^\/\:]+(\:\d{1,5})?)(.*)/i', $url, $matches );
if (!$matches) return false;
$sock = socket_create( AF_INET, SOCK_STREAM, SOL_TCP );
if ( !@socket_connect( $sock, $matches[1], $matches[2] ? substr($matches[2], 1 ) : 80 ) ) {
return false;
}
//圖片的相對位址
$msg = 'GET ' . $matches[3] . " HTTP/1.1\r\n";
//主機名稱
$msg .= 'Host: ' . $matches[1] . "\r\n";
$msg .= 'Connection: Close' . "\r\n\r\n";
socket_write( $sock, $msg );
$bin = '';
while ( $tmp = socket_read( $sock, 10 ) ) {
$bin .= $tmp;
$tmp = '';
}
$bin = explode("\r\n\r\n", $bin);
$img = $bin[1];
$h = fopen( $filename, 'wb' );
$res = fwrite( $h, $img ) === false ? false : true;
@socket_close( $sock );
Return $res;
}

方式2：curl

複製代碼 代碼如下:

<?php
$url = "yun_qi_img/thum-f3ccdd27d2000e3f9255a7e3e2c4880020110622095243.jpg";
$filename = 'curl.gif';
//http://jb51.net
getImg($url, $filename);
/*
*@通過curl方式擷取制定的圖片到本地
*@ 完整的圖片地址
*@ 要儲存的檔案名稱
*/
function getImg($url = "", $filename = "") {
if(is_dir(basename($filename))) {
echo "The Dir was not exits";
Return false;
}
//去除URL串連上面可能的引號
$url = preg_replace( '/(?:^[\'"]+|[\'"\/]+$)/', '', $url );
$hander = curl_init();
$fp = fopen($filename,'wb');
curl_setopt($hander,CURLOPT_URL,$url);
curl_setopt($hander,CURLOPT_FILE,$fp);
curl_setopt($hander,CURLOPT_HEADER,0);
curl_setopt($hander,CURLOPT_FOLLOWLOCATION,1);
//curl_setopt($hander,CURLOPT_RETURNTRANSFER,false);//以資料流的方式返回資料,當為false是直接顯示出來
curl_setopt($hander,CURLOPT_TIMEOUT,60);
/*$options = array(
CURLOPT_URL=> 'http://jb51.net/content/uploadfile/201106/thum-f3ccdd27d2000e3f9255a7e3e2c4880020110622095243.jpg',
CURLOPT_FILE => $fp,
CURLOPT_HEADER => 0,
CURLOPT_FOLLOWLOCATION => 1,
CURLOPT_TIMEOUT => 60
);
curl_setopt_array($hander, $options);
*/
curl_exec($hander);
curl_close($hander);
fclose($fp);
Return true;
}
?>