upload.php

 

<?php

/*

 * swfupload图片上传  

 */ 

    if (isset($_POST["PHPSESSID"])) {

        session_id($_POST["PHPSESSID"]);

    }

    session_start();

    ini_set("html_errors", "0");

    if (!isset($_FILES["Filedata"]) !is_uploaded_file($_FILES["Filedata"]["tmp_name"]) $_FILES["Filedata"]["error"] != 0) {

        echo "错误:无效的上传!";

        exit(0);

    }

 

    // Get the image and create a thumbnail

     $file_types=explode(".",$_FILES["Filedata"]["name"]);

     $file_type=$file_types[count($file_types)-1];

    if(strtolower($file_type)=='gif' )

    {

        $img = imagecreatefromgif($_FILES["Filedata"]["tmp_name"]);

    }

    else if(strtolower($file_type)=='png')

    {

        $img = imagecreatefrompng($_FILES["Filedata"]["tmp_name"]);

    }

    else if(strtolower($file_type)=='bmp')

    {

        $img = imagecreatefromwbmp($_FILES["Filedata"]["tmp_name"]);

    }

    else

    {

        $img = imagecreatefromjpeg($_FILES["Filedata"]["tmp_name"]);

    }

 

    if (!$img) {

        echo "错误:无法创建图像 ". $_FILES["Filedata"]["tmp_name"];

        exit(0);

    }

 

    $width = imageSX($img);

    $height = imageSY($img);

 

    if (!$width !$height) {

        echo "错误：无效的高或高";

        exit(0);

    }

 

    // Build the thumbnail

    $target_width = 100;

    $target_height = 100;

    $target_ratio = $target_width / $target_height;

 

    $img_ratio = $width / $height;

 

    if ($target_ratio > $img_ratio) {

        $new_height = $target_height;

        $new_width = $img_ratio * $target_height;

    } else {

        $new_height = $target_width / $img_ratio;

        $new_width = $target_width;

    }

 

    if ($new_height > $target_height) {

        $new_height = $target_height;

    }

    if ($new_width > $target_width) {

        $new_height = $target_width;

    }

 

    $new_img = ImageCreateTrueColor(100, 100);

    if (!@imagefilledrectangle($new_img, 0, 0, $target_width-1, $target_height-1, 0)) { // Fill the image black

        echo "错误：不能填充新图片";

        exit(0);

    }

 

    if (!@imagecopyresampled($new_img, $img, ($target_width-$new_width)/2, ($target_height-$new_height)/2, 0,0, $new_width, $new_height, $width, $height)) {

        echo "错误：不能调整大小的图像";

        exit(0);

    }

 

    if (!isset($_SESSION["file_info"])) {

        $_SESSION["file_info"] = array();

    }

    ob_start();

    imagejpeg($new_img);

    $imagevariable = ob_get_contents();

    ob_end_clean();

 

    $file_id = md5($_FILES["Filedata"]["tmp_name"] + rand()*100000);

 

    $_SESSION["file_info"][$file_id] = $imagevariable;

    echo "FILEID:" . $file_id;  // Return the file id to the script

    include("upimg.class.php");

    if(!empty($_FILES["Filedata"]) and count(explode(",",$_SESSION["upload_tem"]))<5)

    {

        $folder="upload/images/tem/".date("Y-m-d");

        $up = new upimg("$folder","$folder"); //可以写成：$up = new upimg();

        $up->autoThumb = TRUE; //可省略

        $up->srcDel=TRUE;

        $up->thumbWidth = 550; //可省略

        $up->thumbHeight = 400; //可省略

        $up->maxsize=2014; //上传文件大小单位是kb

        $result= $up->upload('Filedata'); // HTML中<input />的name属性值

        $_SESSION["upload_tem"]=$_SESSION["upload_tem"].",".$up->thumbPath;

        $_SESSION["upload_tem"]=trim($_SESSION["upload_tem"],",");

 

    }

 

?>