php获取远程图片的两种 CURL方式和sockets方式获取远程图片

方式1：sockets
<div class="codetitle"><a style="CURSOR: pointer" data="57091" class="copybut" id="copybut57091" onclick="doCopy('code57091')"> 代码如下:<div class="codebody" id="code57091">
$a = "http://jb51.cc/content/uploadfile/201106/thum-f3ccdd27d2000e3f9255a7e3e2c4880020110622095243.jpg";
$local = 'socket1.gif';
$aa = getImg($a,$local);
/
@ 完整的图片地址
@ 要存储的文件名
/
function getImg( $url = "",$filename = "" ) {
if(is_dir(basename($filename))) {
echo "The Dir was not exits";
Return false;
}
//去除URL连接上面可能的引号
$url = preg_replace( '/(?:^['"]+|['"/]+$)/','',$url );
if (!extension_loaded('sockets')) return false;
//获取url各相关信息
preg_match( '/http://([^/:]+(:d{1,5})?)(.)/i',$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;
}
//图片的相对地址
$msg = 'GET ' . $matches[3] . " HTTP/1.1rn";
//主机名称
$msg .= 'Host: ' . $matches[1] . "rn";
$msg .= 'Connection: Close' . "rnrn";
socket_write( $sock,$msg );
$bin = '';
while ( $tmp = socket_read( $sock,10 ) ) {
$bin .= $tmp;
$tmp = '';
}
$bin = explode("rnrn",$bin);
$img = $bin[1];
$h = fopen( $filename,'wb' );
$res = fwrite( $h,$img ) === false ? false : true;
@socket_close( $sock );
Return $res;
}

方式2：curl
<div class="codetitle"><a style="CURSOR: pointer" data="48805" class="copybut" id="copybut48805" onclick="doCopy('code48805')"> 代码如下:<div class="codebody" id="code48805">
<?php
$url = "http://jb51.cc/content/uploadfile/201106/thum-f3ccdd27d2000e3f9255a7e3e2c4880020110622095243.jpg";
$filename = 'curl.gif';
//http://jb51.cc
getImg($url,$filename);
/
@通过curl方式获取制定的图片到本地
@ 完整的图片地址
@ 要存储的文件名
/
function getImg($url = "",$filename = "") {
if(is_dir(basename($filename))) {
echo "The Dir was not exits";
Return false;
}
//去除URL连接上面可能的引号
$url = preg_replace( '/(?:^['"]+|['"/]+$)/',$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($hander,CURLOPT_RETURNTRANSFER,false);//以数据流的方式返回数据,当为false是直接显示出来
curl_setopt($hander,CURLOPT_TIMEOUT,60);
/$options = array(
CURLOPT_URL=> 'http://jb51.cc/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;
}
?>

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