<?php
//连接数据库...

$oldname = $_FILES['mfile']['name'];
$info = htmlspecialchars($_POST['info']);
//检查文件类型
if (!preg_match('/\\.(gif|jpe?g)$/i', $oldname, $match))
    die('<span class="STYLE1">只能上传gif、jpg、jpeg格式的图片！</span>');
    
//上传文件

//保存目
$uploaddir = 'uploadimages/';
$smallimg = 'uploadimages/small/';
//重新命名
$filename = date("YmdHis") . '.' . $match[1];

//上传
$uploadfile = $uploaddir . $filename;
if (!move_uploaded_file($_FILES['mfile']['tmp_name'], $uploadfile)) {
    echo "文件上传失败！";
    print_r ($_FILES);
}
//输出图片,生成缩略图
if (function_exists("imagecreatefromgif")) {
    if ($match[1] == 'gif')
        $im = imagecreatefromgif($uploadfile);
    else
        $im = imagecreatefromjpeg($uploadfile);
        
    $oldw = imagesx($im);
    $oldh = imagesy($im);
    
    $imw = imagecreatefromgif('w.gif');
    $imww = imagesx($imw);
    $imwh = imagesy($imw);
    
    $ww = $oldw/10;
    $wh = $imwh * $ww / $imww;
    
    imagecopyresized($im, $imw, $oldw - $ww, $oldh - $wh, 0, 0, $ww, $wh, $imww, $imwh);

    //$_POST['x']为缩略图宽度
    if (imagesx($im) > $_POST['x'] && $_POST['x'] > 0) {    //需要缩略图
        $x = $_POST['x'];
        $y = $oldh * $x / $oldw;
        $newname = $smallimg . $filename;
        if(function_exists("imagecopyresampled")) { 
            $newim = imagecreatetruecolor($x, $y); 
            imagecopyresampled($newim, $im, 0, 0, 0, 0, $x, $y, $oldw, $oldh); 
        }
        else { 
            $newim = imagecreate($newwidth, $newheight); 
            imagecopyresized($newim, $im, 0, 0, 0, 0, $x, $y, $oldw, $oldh); 
        }
        if ($match[1] == 'gif') {
            imagegif($im, $uploadfile);
            imagegif($newim,$newname); 
        }
        else {
            imagejpeg($newim,$newname);
            imagejpeg($im, $uploadfile);    
        } 
        imagedestroy ($newim);
        imagedestroy($im);
    }
}
else {
    echo '当前环境支持GD库，没有生成缩略图！';
}
//保存在数据库
if ($x > 0 && $y > 0) {    //有缩略图
    $query = "INSERT INTO images (id, board, oldname, newname, oldw, oldh, newx, newy, info) VALUES ('', '$bds', '$oldname', '$filename', '$oldw', '$oldh', '$x', '$y', '$info')";
}
else {    //无缩略图
    $query = "INSERT INTO images (id, board, oldname, newname, oldw, oldh, newx, newy, info) VALUES ('', '$bds', '$oldname', '$filename', '$oldw', '$oldh', '0', '0', '$info')";
}
mysql_query($query) or die(mysql_error());

?>