error when resizing images

[jwk811]

im trying to loop thru all the photos i have here but i get this error. (its not the db_fetch_assoc or db_query) it works when im not using the resize function but that function works when im not looping thru the database.

 

Warning: imagecopyresampled(): supplied argument is not a valid Image resource in /home/content/p/o/k/pokher366/html/photos/program.php  on line 37

 

Warning: mysql_fetch_assoc(): supplied argument is not a valid MySQL result resource in /home/content/p/o/k/pokher366/html/lib/config.php on line 76

 

function Resize_Image($save,$file,$t_w,$t_h,$s_path,$o_path) { 
    $s_path = trim($s_path); 
    $o_path = trim($o_path); 
    $save = $s_path . $save; 
    $file = $o_path . $file; 
    $ext = strtolower(end(explode('.',$save))); 
    list($width, $height) = getimagesize($file) ;  
    if(($width>$t_w) OR ($height>$t_h)) { 
        $r1 = $t_w/$width; 
        $r2 = $t_h/$height; 
        if($r1<$r2) { 
          $size = $t_w/$width; 
        }else{ 
          $size = $t_h/$height; 
        } 
    }else{ 
        $size=1; 
    } 
    $modwidth = $width * $size;  
    $modheight = $height * $size;  
    $tn = imagecreatetruecolor($modwidth, $modheight) ;  
    switch ($ext) { 
        case 'jpg': 
        case 'jpeg': 
                    $image = imagecreatefromjpeg($file) ;  
        break; 
        case 'gif': 
                    $image = imagecreatefromgif($file) ;  
        break; 
        case 'png': 
                    $image = imagecreatefrompng($file) ;  
        break; 
    } 
    imagecopyresampled($tn, $image, 0, 0, 0, 0, $modwidth, $modheight, $width, $height) ;  
    imagejpeg($tn, $save, 100) ;  
    return; 
} 


$sql = "SELECT *
        	FROM photo_posts 
	ORDER BY post_date DESC";
$result = dbQuery($sql);

while($row = dbFetchAssoc($result)) {
	extract($row);

$thumbPath = md5(rand() * time()) . ".$ext";
$save = $thumbPath;  
$file = $post_image;  
$t_w = 180; 
$t_h = 800; 
$o_path = "images/"; 
$s_path = "images/thumbs/"; 


if (file_exists($o_path . $post_image)) {
	Resize_Image($save,$file,$t_w,$t_h,$s_path,$o_path); 

	$sql = "UPDATE photo_posts SET post_thumbnail = '$thumbPath' WHERE post_id = '$post_id'";
	$result = dbQuery($sql);
}

}

 

 

[Psycho]

I'm guessing one of the "images" in the DB query  is not an image or has the wrong extension. FYI: A jpg with a gif extension will typically display in most applications but would fail if you tried to read it as a jpg in PHP.

[jwk811]

maybe because some are capital JPG and some are jpg? if so how could i change that in the code so it allows both. all the photos in the directory are jpg and a couple gif

[jwk811]

nevermind. i checked the directory again today and all the files are copied like they were supposed to. weird. only one problem theres 704 in the new directory but 714 in the old. i wonder why 10 failed.