save.php

applet在線上繪圖,允許在瀏覽器上繪圖,最後儲存成各式的圖檔

<?php
/*--------------------------------------------------------------------
This script accepts the uploaded image from the editor and saves it
to a disk file. Then it asks the applet to redirect the browser
to the 'view.php' to prove that the image is saved successfully.
---------------------------------------------------------------------*/

if (isset($_FILES['image']['tmp_name'])) { // check if the request contains the uploaded file.

    // This is the path to the temporal file created by PHP engine.
    // PHP erases this file automatically after the script completion,
    // so we have to save it to another file.
    $temp_name = $_FILES['image']['tmp_name'];

    // We save the uploaded image file to the current directory
    // using the file name suggested by the editor,
    $filename = basename($_FILES['image']['name']);

    // But you can use any desirable filename, for example
    // create a unique filename using the current datetime
    // and the user's IP address:
    // $filename = time().'-'.str_replace('.','-',$_SERVER['REMOTE_ADDR']).".png";
    
    if (is_writable("./")) { // can I write in this directory ?

        // move the uploaded file from the temporal PHP storage
        // to the permanent file in in this directory
        if (move_uploaded_file($temp_name,realpath('./')."/$filename")) {
    
    	    // Redirect the user's browser to the 'view.php'
    	    // to diplay the uploaded image
    	    
    	    $filename   = urlencode($filename);

    	    // This the image MIME type. It may be reqired if the image is sent by e-mail
    	    $image_type = urlencode($_FILES['image']['type']);

	    // output the control command for the applet
    	    echo "#SHOWDOCUMENT=view.php?filename=$filename&image_type=$image_type\n";
        }
        else
            echo("#SHOWMESSAGE=Can't move the uploded file $temp_name\n");
    }
    else
	echo("#SHOWMESSAGE=save.php hasn't write permissions in this directory on the server\n");
}
else
    echo("#SHOWSTATUS=Image file is not found in the request\n");
?>