created two versions of image in folder

[samoht]

I was wonder if I could get some help on putting together a script that would loop through all the images in a folder and created two other images (a thumbnail and a largesize) for each image?

 

I have :

<?php
/*
Create a thumbnail of $srcFile and save it to $destFile.
The thumbnail will be $width pixels.
*/
function createThumbnail($srcFile, $destFile, $width, $quality = 150)
{
$thumbnail = '';

if (file_exists($srcFile)  && isset($destFile))
{
	$size        = getimagesize($srcFile);
	$w           = number_format($width, 0, ',', '');
	$h           = number_format(($size[1] / $size[0]) * $width, 0, ',', '');

	$thumbnail =  copyImage($srcFile, $destFile, $w, $h, $quality);
}

// return the thumbnail file name on sucess or blank on fail
return basename($thumbnail);
}

/*
Create a fullsize image of $srcFile and save it to $destFile.
The fullsize image  will be $width pixels.
*/
function createFullsize($srcFile, $destFile, $width, $quality = 350)
{
$fullsize = '';

if (file_exists($srcFile)  && isset($destFile))
{
	$size        = getimagesize($srcFile);
	$w           = number_format($width, 0, ',', '');
	$h           = number_format(($size[1] / $size[0]) * $width, 0, ',', '');

	$fullsize =  copyImage($srcFile, $destFile, $w, $h, $quality);
}

// return the thumbnail file name on sucess or blank on fail
return basename($fullsize);
}
/*
Copy an image to a destination file. The destination
image size will be $w X $h pixels
*/
function copyImage($srcFile, $destFile, $w, $h, $quality = 150)
{
    $tmpSrc     = pathinfo(strtolower($srcFile));
    $tmpDest    = pathinfo(strtolower($destFile));
    $size       = getimagesize($srcFile);

    if ($tmpDest['extension'] == "gif" || $tmpDest['extension'] == "jpg")
    {
       $destFile  = substr_replace($destFile, 'jpg', -3);
       $dest      = imagecreatetruecolor($w, $h);
       imageantialias($dest, TRUE);
    } elseif ($tmpDest['extension'] == "png") {
       $dest = imagecreatetruecolor($w, $h);
       imageantialias($dest, TRUE);
    } else {
      return false;
    }

    switch($size[2])
    {
       case 1:       //GIF
           $src = imagecreatefromgif($srcFile);
           break;
       case 2:       //JPEG
           $src = imagecreatefromjpeg($srcFile);
           break;
       case 3:       //PNG
           $src = imagecreatefrompng($srcFile);
           break;
       default:
           return false;
           break;
    }

    imagecopyresampled($dest, $src, 0, 0, 0, 0, $w, $h, $size[0], $size[1]);

    switch($size[2])
    {
       case 1:
       case 2:
           imagejpeg($dest,$destFile, $quality);
           break;
       case 3:
           imagepng($dest,$destFile);
    }
    return $destFile;

}

 

But I am not sure how to write the function that calls these and names the two new images by concatenating a tn and a fs to the end of the image name?

 

also, I'm not sure if the above code is correct for making two copies??

 

Any Ideas?

 

 

[datafan]

I have a page doing just this on one of my sites, here is the code I am using. There is a bit of gobbly goob in there from my paticular site but the resize code is pretty clear. jpegs only, Hope it helps...

 

$piccheck = mysql_query("SELECT * FROM users WHERE username = '$username'", GetMyConnection() )or die(mysql_error());
$picinfo = mysql_fetch_array($piccheck);
$pic1 = $picinfo['picname1'];
$pic2 = $picinfo['picname2'];
$thpic1 = $picinfo['thpicname1'];
$thpic2 = $picinfo['thpicname2'];

function getFileExtension($str) {

        $i = strrpos($str,".");
        if (!$i) { return ""; }

        $l = strlen($str) - $i;
        $ext = substr($str,$i+1,$l);

        return $ext;

    }

$maxfilesize=204800;

if($_POST['submit']){

if ($_POST['agreed'] == "pic1") {
	if ($pic1){
	mysql_query("UPDATE users SET picname1 = '' WHERE username = '$username'", GetMyConnection() )or die(mysql_error());
	mysql_query("UPDATE users SET thpicname1 = '' WHERE username = '$username'", GetMyConnection() )or die(mysql_error());
	unlink("userimages/".$pic1);
	unlink("userimages/".$thpic1);
	}

        $size = 100; // the thumbnail height   
	$sizew = 100; //the thumbnail width
	$fsize = 480; // the full size pic height
	$fsizew = 640; //the full size width
        $filedir = 'userimages/'; // the directory for the full size image   
        $thumbdir = 'userimages/'; // the directory for the thumbnail image   
        $prefix = 'th_'.$username; // the prefix to be added to the original name for thumbnail
	$fprefix = $username; //the prefix to be added to the full size pic	
        $maxfile = '204800';   
        $mode = '0666';   
        $userfile_name = $_FILES['image']['name'];   
        $userfile_tmp = $_FILES['image']['tmp_name'];   
        $userfile_size = $_FILES['image']['size'];   
        $userfile_type = $_FILES['image']['type'];   
        if (isset($_FILES['image']['name']))    
        { 

		$pext = getFileExtension($userfile_name);
		$pext = strtolower($pext);
		if (($pext != "jpg")  && ($pext != "jpeg"))	{
		print "<h1>ERROR</h1>Image Extension Unknown.<br>";
		print "<p>Please upload only a JPEG image with the extension .jpg or .jpeg ONLY<br><br>";
		print "The file you uploaded had the following extension: $pext</p>\n";
		/*== delete uploaded file ==*/
		unlink($userfile_tmp);
		exit();
		}

            $prod_img = $filedir.$username.$userfile_name;   
            $prod_img_thumb = $thumbdir.$prefix.$userfile_name;   
            move_uploaded_file($userfile_tmp, $prod_img);   
            chmod ($prod_img, octdec($mode));

		//Resize the full image to max width 640 or max height 480	
		$sizes = getimagesize($prod_img);   
            $aspect_ratio = $sizes[1]/$sizes[0];    
            if ($sizes[1] <= $fsize && $sizes[0] <= $fsizew)   
            {   
                 $new_width = $sizes[0];   
                 $new_height = $sizes[1];   
		}elseif ($sizes[1] <= $fsize && $sizes[0] > $fsizew)
		{   
                $new_width = $fsizew;
			$new_height = abs($new_width/$aspect_ratio);
		}elseif ($sizes[1] <= $sizes[0])
		{
			$aspect_ratio = $sizes[0]/$sizes[1];
			$new_width = $fsizew;
			$new_height = abs($new_width/$aspect_ratio);
		}else
		{
			$new_height = $fsize;   
                $new_width = abs($new_height/$aspect_ratio); 
		}
            $destimg=ImageCreateTrueColor($new_width,$new_height)   
                or die('Problem In Creating image');   
            $srcimg=ImageCreateFromJPEG($prod_img)   
                or die('Problem In opening Source Image');   
            if(function_exists('imagecopyresampled'))   
            {   
                imagecopyresampled($destimg,$srcimg,0,0,0,0,   
                   $new_width,$new_height,ImageSX($srcimg),ImageSY($srcimg))   
                or die('Problem In resizing');   
            }else{   
                Imagecopyresized($destimg,$srcimg,0,0,0,0,   
                   $new_width,$new_height,ImageSX($srcimg),ImageSY($srcimg))   
                or die('Problem In resizing');   
            }   
            ImageJPEG($destimg,$prod_img,90)   
                or die('Problem In saving');   
            imagedestroy($destimg);   
         



            $sizes = getimagesize($prod_img);   
            $aspect_ratio = $sizes[1]/$sizes[0];    
            if ($sizes[1] <= $size && $sizes[0] <= $sizew)   
            {   
                 $new_width = $sizes[0];   
                 $new_height = $sizes[1];   
		}elseif ($sizes[1] <= $size && $sizes[0] > $sizew)
		{   
                $new_width = $sizew;
			$new_height = abs($new_width/$aspect_ratio);
		}elseif ($sizes[1] <= $sizes[0])
		{
			$aspect_ratio = $sizes[0]/$sizes[1];
			$new_width = $sizew;
			$new_height = abs($new_width/$aspect_ratio);
		}else
		{
			$new_height = $size;   
                $new_width = abs($new_height/$aspect_ratio); 
		}
            $destimg=ImageCreateTrueColor($new_width,$new_height)   
                or die('Problem In Creating image');   
            $srcimg=ImageCreateFromJPEG($prod_img)   
                or die('Problem In opening Source Image');   
            if(function_exists('imagecopyresampled'))   
            {   
                imagecopyresampled($destimg,$srcimg,0,0,0,0,   
                   $new_width,$new_height,ImageSX($srcimg),ImageSY($srcimg))   
                or die('Problem In resizing');   
            }else{   
                Imagecopyresized($destimg,$srcimg,0,0,0,0,   
                   $new_width,$new_height,ImageSX($srcimg),ImageSY($srcimg))   
                or die('Problem In resizing');   
            }   
            ImageJPEG($destimg,$prod_img_thumb,90)   
                or die('Problem In saving');   
            imagedestroy($destimg);   
        } 
	$userfilename=$username.$userfile_name;
	$thuserfilename=$prefix.$userfile_name;

	mysql_query("UPDATE users SET picname1 = '$userfilename' WHERE username = '$username'", GetMyConnection() )or die(mysql_error());
	mysql_query("UPDATE users SET thpicname1 = '$thuserfilename' WHERE username = '$username'", GetMyConnection() )or die(mysql_error());

        CleanUpDB();

[samoht]

Thanks,

 

Although I am not sure I understand whats all in there.

 

I did not see where you were opening a file and checking the images in that file?

 

 

[datafan]

I store the images in a directory and the image names in a database associated with the particular user name.

[datafan]

What I am thinking is cross referencing the images by name in your database, so when an image is added to your image folder it's name is added to the database. This makes it easy to display, work with, and and manipulate them any way you want to. Instead of searching and working with image name from the actual folder, you are just cross referencing it from the database entry.

[samoht]

Ok, but that seems to work only after you have got things rolling and a list of images in the db.

 

What if you are starting from scratch but you have a folder full of images?