It looks like there may be an issue within the function that is preventing the image from being created, or possibly in the script itself which is not passing the image to the function properly.
Below is the upload script (please note: this script is injected into AJAX)
$path = "cache/";
$valid_formats = array("jpg", "png", "gif", "jpeg");
if(isset($_POST) and $_SERVER['REQUEST_METHOD'] == "POST")
{
$name = $_FILES['photoimg']['name'];
$size = $_FILES['photoimg']['size'];
if(strlen($name))
{
ist($txt, $ext) = explode(".", $name);
if(in_array($ext,$valid_formats))
{
if($size<(2024*2024))
{
$new_file = "header.".$ext;
$tmp = $_FILES['photoimg']['tmp_name'];
if(move_uploaded_file($tmp, $path.$new_file))
{
echo "<img src='cache/".$new_file."?".time()."' class='preview'>";
createHeader($new_file);
}
else
echo "failed";
}
else
echo "Image file size max 1 MB";
}
else
echo "Invalid file format..";
}
else
echo "Please select image..!";
exit;
}
And here is the function:
function createHeader($new_file) {
$path = "uploads/";
$image = "cache/";
$width = 800;
if(preg_match('/[.](jpg)|(jpeg)$/', $new_file)) {
$im = imagecreatefromjpeg($image . $new_file);
} else if (preg_match('/[.](gif)$/', $new_file)) {
$im = imagecreatefromgif($image . $new_file);
imagecolortransparent($im, black);
} else if (preg_match('/[.](png)$/', $new_file)) {
$im = imagecreatefrompng($image . $new_file);
}
imagealphablending($im, false);
imagesavealpha($im, true);
$ox = imagesx($im);
$oy = imagesy($im);
$nx = $width;
$ny = floor($oy * ($width / $ox) );
imagecopyresampled($nm, $im, 0,0,0,0,$nx,$ny,$ox,$oy);
imagealphablending($im, true);
if(!file_exists($path)) {
if(!mkdir($path)) {
die("There was a problem. Please try again!");
}
}
imagejpeg($nm, $path . $new_file, 100);
imagedestroy($im);
imagedestroy($nm);
}
The intention of the code is for users logged in to my CMS to be able to change the header on their page by clicking an icon, triggering a jQuery call to edit.php with the necessary query string. The user can then upload a new image, which will overwrite the original as 'header.jpg'
'header.jpg' should be uploaded to the 'uploads/' directory while a copy of the original image in 'cache/' should be unlinked once the function successfully creates a copy and places it in 'uploads/'.
The issue appears to be that the first script uploads the file correctly to the cache/ directory, but the function is failing to work and does nothing for the uploads/ directory.
Any clues about what might be going wrong or what I could be missing to solve this frustrating problem?