方式1:sockets
$a = "/content/uploadfile/06/thum-f3ccdd27d2000e3f9255a7e3e2c488000622095243.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/1.1\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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