• Upload and Resize an Image with PHP

    Here is a simple PHP script to re-sizing image into different dimensions. It’s very useful to your web projects to save hosting space and bandwidth to reduce the original image to compressed size.

    PHP Code :-

    This script resize an Image into two 60px and 25px. Take a look at $newwidth you have to modify size values.

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    <?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!";
    }
     ?>

    Extention PHP funtion :-

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    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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