后端开发|php教程
远程图片,CURL,sockets
后端开发-php教程
方式1：sockets
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$a = "/content/uploadfile/06/thum-f3ccdd27d2000e3f9255a7e3e2c488000622095243.jpg";
$local = socket1.jpg;
$aa = getImg($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/1.1\r\n";
//主机名称
$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
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<?php
$url = "/content/uploadfile/06/thum-f3ccdd27d2000e3f9255a7e3e2c488000622095243.jpg";
$filename = curl.jpg;
//
getImg($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=> /content/uploadfile/06/thum-f3ccdd27d2000e3f9255a7e3e2c488000622095243.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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