Code Clues: Image Upload in Different Sizes in PHP

Below is a PHP code to upload image in different sizes. This code will be useful while creating image gallery, shopping carts or any other colorful web based projects.

index.php



<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>File Upload</title>
</head>

<body>
<form method="post" enctype="multipart/form-data">
<p>
<input type="file" name="file" id="file" />
<input type="submit" name="submit" id="submit" value="Upload" />
</p>
</form>
</body>
</html>




<?php
define ("MAX_SIZE","500");

$errors=0;

if($_SERVER["REQUEST_METHOD"] == "POST")
{
$image =$_FILES["file"]["name"];
$uploadedfile = $_FILES['file']['tmp_name'];

if ($image)
{
$filename = stripslashes($_FILES['file']['name']);
$extension = getExtension($filename);
$extension = strtolower($extension);
if (($extension != "jpg") && ($extension != "jpeg") && ($extension != "png") && ($extension != "gif"))
{
echo ' Unknown Image extension ';
$errors=1;
}
else
{
$size=filesize($_FILES['file']['tmp_name']);

if ($size > MAX_SIZE*1024)
{
echo "You have exceeded the size limit";
$errors=1;
}

if($extension=="jpg" || $extension=="jpeg" )
{
$uploadedfile = $_FILES['file']['tmp_name'];
$src = imagecreatefromjpeg($uploadedfile);
}
else if($extension=="png")
{
$uploadedfile = $_FILES['file']['tmp_name'];
$src = imagecreatefrompng($uploadedfile);
}
else
{
$src = imagecreatefromgif($uploadedfile);
}

list($width,$height)=getimagesize($uploadedfile);

$newwidth=800;
$newheight=($height/$width)*$newwidth;
$tmp=imagecreatetruecolor($newwidth,$newheight);

$newwidth1=75;
$newheight1=($height/$width)*$newwidth1;
$tmp1=imagecreatetruecolor($newwidth1,$newheight1);

imagecopyresampled($tmp,$src,0,0,0,0,$newwidth,$newheight,
$width,$height);

imagecopyresampled($tmp1,$src,0,0,0,0,$newwidth1,$newheight1,
$width,$height);

$filename = "uploads/". $_FILES['file']['name'];
$filename1 = "uploads/small". $_FILES['file']['name'];

imagejpeg($tmp,$filename,100);
imagejpeg($tmp1,$filename1,100);

imagedestroy($src);
imagedestroy($tmp);
imagedestroy($tmp1);
}
}
}
//If no errors registred, print the success message

if(isset($_POST['Submit']) && !$errors)
{
// mysql_query("update SQL statement ");
echo "Image Uploaded Successfully!";
}

function getExtension($str) {
$i = strrpos($str,".");
if (!$i) { return ""; }
$l = strlen($str) - $i;
$ext = substr($str,$i+1,$l);
return $ext;
}
?>



Here using the above code the image will be uploaded in two different sizes with width's 800px & 75px respectively.

Thank You!

Code Clues

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Saturday, 1 December 2012

Image Upload in Different Sizes in PHP

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