Can someone please make this a function..

[adamjblakey]

Hi,

 

Please can someone turn this into a function for me:

 

<?php


$path_thumbs = "images/thumbs";
$path_big = "images/big";

//the new width of the resized image.
$img_thumb_width = 150; // in pixcel

$extlimit = "yes"; //Do you want to limit the extensions of files uploaded (yes/no)
//allowed Extensions
$limitedext = array(".gif",".jpg",".png",".jpeg",".bmp");


//check if folders are Writable or not
//please CHOMD them 777
if (!is_writeable($path_thumbs)){
   die ("Error: The directory <b>($path_thumbs)</b> is NOT writable");
}
if (!is_writeable($path_big)){
    die ("Error: The directory <b>($path_big)</b> is NOT writable");
}

//if the for has submittedd
if (isset($_POST['upForm'])){

       $file_type = $_FILES['imgfile']['type'];
       $file_name = $_FILES['imgfile']['name'];
       $file_size = $_FILES['imgfile']['size'];
       $file_tmp = $_FILES['imgfile']['tmp_name'];

       //check if you have selected a file.
       if(!is_uploaded_file($file_tmp)){
          echo "Error: Please select a file to upload!. <br>--<a href=\"$_SERVER[php_SELF]\">back</a>";
          exit(); //exit the script and don't do anything else.
       }
       //check file extension
       $ext = strrchr($file_name,'.');
       $ext = strtolower($ext);
       if (($extlimit == "yes") && (!in_array($ext,$limitedext))) {
          echo "Wrong file extension.  <br>--<a href=\"$_SERVER[php_SELF]\">back</a>";
          exit();
       }
       //get the file extension.
       $getExt = explode ('.', $file_name);
       $file_ext = $getExt[count($getExt)-1];

       //create a random file name
       $rand_name = md5(time());
       $rand_name= rand(0,999999999);
       //get the new width variable.
       $ThumbWidth = $img_thumb_width;

       //keep image type
       if($file_size){
          if($file_type == "image/pjpeg" || $file_type == "image/jpeg"){
               $new_img = imagecreatefromjpeg($file_tmp);
           }elseif($file_type == "image/x-png" || $file_type == "image/png"){
               $new_img = imagecreatefrompng($file_tmp);
           }elseif($file_type == "image/gif"){
               $new_img = imagecreatefromgif($file_tmp);
           }
           //list width and height and keep height ratio.
           list($width, $height) = getimagesize($file_tmp);
           $imgratio=$width/$height;
           if ($imgratio>1){
              $newwidth = $ThumbWidth;
              $newheight = $ThumbWidth/$imgratio;
           }else{
                 $newheight = $ThumbWidth;
                 $newwidth = $ThumbWidth*$imgratio;
           }
           //function for resize image.
           if (function_exists(imagecreatetruecolor)){
           $resized_img = imagecreatetruecolor($newwidth,$newheight);
           }else{
                 die("Error: Please make sure you have GD library ver 2+");
           }
           imagecopyresized($resized_img, $new_img, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
           //save image
           ImageJpeg ($resized_img,"$path_thumbs/$rand_name.$file_ext");
           ImageDestroy ($resized_img);
           ImageDestroy ($new_img);
           //print message
           echo "<br>Image Thumb: <a href=\"$path_thumbs/$rand_name.$file_ext\">$path_thumbs/$rand_name.$file_ext</a>";
        }

        //upload the big image
        move_uploaded_file ($file_tmp, "$path_big/$rand_name.$file_ext");


}else{ //if the form hasn't been submitted.

      //print the form
      echo "Sorry";

}


?>

 

I want to be able to go e.g. $bannerimage = resizedimage("$_POST['bannerimage']");

 

So i don't have to put the full lot of code all the time.

 

Cheers in advanced for your help.

 

Adam

[Wuhtzu]

At some point you have to learn how to create functions.

 

This is the basic syntax for creating a function.

 

<?php

function name_of_function($argument1, $argument2, $argument3='has a standard value') {

  //The function code goes here

}

?>

 

function name_of_function(){} declares a function called name_of_function().

($argument1, $argumnet2, $argument3='has a default value') specifies 3 arguments which can be passed to the function. $argument3 has a default value which will be used unless it is passed again when the function is called...

{} holds the actual code which will run when the function is called

 

 

So basically all you need to do is put your code inside function resize_image() { } and determine which variables to use as function arguments.

 

The most basic function of yours might look something like this:

 

<?php

function resize_image($image, $width) {

  //your code goes here

}

?>

 

Have a go at it!

 

Wuhtzu