Php Image upload Script

php scripts anvar in

This is a basic script to upload images on the server.

Html Code: index.html

<html>
<body>

<form action="upload.php" method="post" enctype="multipart/form-data">
 Select image to upload:
 <input type="file" name="fileToUpload" id="fileToUpload">
 <input type="submit" value="Upload Image" name="submit">
</form>

</body>
</html>

PHP Code: upload.php

<?php
$target_dir = "uploads/";
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
$uploadOk = 1;
$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);
// Check if image file is a actual image or fake image
if(isset($_POST["submit"])) {
 $check = getimagesize($_FILES["fileToUpload"]["tmp_name"]);
 if($check !== false) {
 echo "File is an image - " . $check["mime"] . ".";
 $uploadOk = 1;
 } else {
 echo "File is not an image.";
 $uploadOk = 0;
 }
}
// Check if file already exists
if (file_exists($target_file)) {
 echo "Sorry, file already exists.";
 $uploadOk = 0;
}
// Check file size
if ($_FILES["fileToUpload"]["size"] > 50000000) {
 echo "Sorry, your file is too large.";
 $uploadOk = 0;
}
// Allow certain file formats
if($imageFileType != "jpg" && $imageFileType != "png" 
&& $imageFileType != "jpeg" && $imageFileType != "gif" ) {
 echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
 $uploadOk = 0;
}
// Check if $uploadOk is set to 0 by an error
if ($uploadOk == 0) {
 echo "Sorry, your file was not uploaded.";
// if everything is ok, try to upload file
} else {
 if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) {
 echo "The file ". basename( $_FILES["fileToUpload"]["name"]). 
 " has been uploaded.";
 } else {
 echo "Sorry, there was an error uploading your file.";
 }
}
?>