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Image Upload and Resize with PHP

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Image uploading is the need of websites which handling form processing or user login. Most of the realtime web application needs this feature. But the main problem is the image size and resolution while uploading the photo. In this post, I am going to write about image upload and resize with PHP. You can use this code and check if it works for you. By resizing the image, you can save space on your hosting and small images also takes less time in loading in browser.

This script resize an Image into two 60px and 25px. see the variables $newwidth and $newwidth1 in the code. Change the values according to your need to convert image size according to your need.

PHP Code

<?php

define ("MAX_SIZE","400");

$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=60;
$newheight=($height/$width)*$newwidth;
$tmp=imagecreatetruecolor($newwidth,$newheight);

$newwidth1=25;
$newheight1=($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 = "images/". $_FILES['file']['name'];
$filename1 = "images/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!";

}
?>
<?php
function getExtension($str) {

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

 

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Deepanker Verma is the founder of Techlomedia. He is a tech blogger, developer and gadget freak.


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1 Comments

  • FIFA 12 Ultimate Team Hack says:

    It’s really a nice and useful piece of info. I am glad that you shared this useful info with us. Please stay us up to date like this. Thanks for sharing.

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