废话少说，直接上代码：

0) {

$filename = $save_path . '/' . uniqid() . '.jpg';

$handle = fopen($filename, 'w+');

fwrite($handle, $postdata);

fclose($handle);

if (is_file($filename)) {

echo 'Image data save successed,file:' . $filename;

exit ();

} else {

die ('Image upload error!');

}

} else {

die ('Image data not detected!');

}

0) {

switch ($_FILES ['Filedata'] ['error']) {

case 1 :

$error_log = 'The file is bigger than this PHP installation allows';

break;

case 2 :

$error_log = 'The file is bigger than this form allows';

break;

case 3 :

$error_log = 'Only part of the file was uploaded';

break;

case 4 :

$error_log = 'No file was uploaded';

break;

default :

break;

}

die ('upload error:' . $error_log);

} else {

$img_data = $_FILES['Filedata']['tmp_name'];

$size = getimagesize($img_data);

$file_type = $size['mime'];

if (!in_array($file_type, array('image/jpg', 'image/jpeg', 'image/pjpeg', 'image/png', 'image/gif'))) {

$error_log = 'only allow jpg,png,gif';

die ('upload error:' . $error_log);

}

switch ($file_type) {

case 'image/jpg' :

case 'image/jpeg' :

case 'image/pjpeg' :

$extension = 'jpg';

break;

case 'image/png' :

$extension = 'png';

break;

case 'image/gif' :

$extension = 'gif';

break;

}

}

if (!is_file($img_data)) {

die ('Image upload error!');

}

// 图片保存路径,默认保存在该代码所在目录(可根据实际需求修改保存路径)

$save_path = dirname(__FILE__);

$uinqid = uniqid();

$filename = $save_path . '/' . $uinqid . '.' . $extension;

$result = move_uploaded_file($img_data, $filename);

if (!$result || !is_file($filename)) {

die ('Image upload error!');

}

echo 'Image data save successed,file:' . $filename;

exit ();

备注：美图秀秀提供两个上传接口供测试

一个是octet-stream方式上传，地址为：http://imgkaka.meitu.com/xiuxiu_web_pic_save.php

另一个是multipart/form-data方式上传，地址为：http://web.upload.meitu.com/image_upload.php

表单名称为"upload_file"。

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