Partially working function for creating thumbnails - php

Question

I have a partially working function for making thumbnails but 10% of the images doesn't get created as thumbnails, and they're the same exact 10%. The other 90% works. I'm not sure why though. Please take a look at my code:
<?php
$image = "511photo.jpg";
if ($image) {
make_thumb("uploads", "thumbnails", $image, 500);
}
function make_thumb($imageFrom, $imageTo, $image, $thumbWidth) {
/* read the source image */
$getFrom = $imageFrom."/".$image;
$source_image = imagecreatefromjpeg($getFrom);
$width = imagesx($source_image);
$height = imagesy($source_image);
/* find the "desired height" of this thumbnail, relative to the desired width */
$thumbHeight = floor($height * ($thumbWidth / $width));
/* create a new, "virtual" image */
$virtual_image = imagecreatetruecolor($thumbWidth, $thumbHeight);
/* copy source image at a resized size */
imagecopyresampled($virtual_image, $source_image, 0, 0, 0, 0, $thumbWidth, $thumbHeight, $width, $height);
/* create the physical thumbnail image to its destination */
$dest = $imageTo."/".$image;
imagejpeg($virtual_image, $dest);
} //end of function make_thumb($imageFrom, $imageTo, $image, $thumbWidth)
?>
Note: Here's a couple of other $image that doesn't work:
"434cute-anime-couple-drawing-on-tumblr.png"
"503anime_head_vectorized_by_cona_cru-d784ls0.png"
Note: Yes, I am sure that they are all in the uploads folder - I've checked and double checked so honestly, right now I'm so confuse...

Answer 1

It's because you are using imagecreatefromjpeg() for png image. You need to use imagecreatefrompng() for these images.
$source_image = imagecreatefrompng($getFrom);
For checking image type you can use exif_imagetype() function :
$imageType = exif_imagetype($getFrom);
if($imageType == IMAGETYPE_PNG) {
//It's PNG
} elseif($imageType == IMAGETYPE_JPEG) {
//It's JPEG
} //You can check more types here.

Answer 2

check file type and add this code with imagejpeg function in a condition its an example add your variables and values
if($fileType=="image/png"){
$im=ImageCreateFromPNG($add);
$width=ImageSx($im); // Original picture width is stored
$height=ImageSy($im); // Original picture height is stored
$newimage=imagecreatetruecolor($n_width,$n_height);
imageCopyResized($newimage,$im,0,0,0,0,$n_width,$n_height,$width,$height);
ImagePng($newimage,$tsrc);
chmod("$tsrc",0777);
}