I'm tring to upload image in wordpress by using some function ..

I found the way to upload images but there are one problem ..

when the user upload his image , wordpress create more than one image diffrent sizes, this is a problem because I want one image only ..

this is wp-conent/uploads/2010/10 folder .. look at the picture (this is one picture but wordpress create same picture but diffrent sizes) .


this is my code

<?php /*
Template Name: Uploading Page


<?php get_header();
?><div class="container_12">
    <div id="content">
    <form id="file-form" enctype="multipart/form-data" action="<?php echo $_SERVER['REQUEST_URI']; ?>" method="POST">
    <p id="async-upload-wrap">
    <label for="async-upload">upload</label>
    <input type="file" id="async-upload" name="async-upload"> <input type="submit" value="Upload" name="html-upload">

    <input type="hidden" name="post_id" id="post_id" value="<?php echo '212';?>" />
    <?php wp_nonce_field('client-file-upload'); ?>
    <input type="hidden" name="redirect_to" value="<?php echo $_SERVER['REQUEST_URI']; ?>" />

    <input type="submit" value="Save all changes" name="save" style="display: none;">

if ( isset( $_POST['html-upload'] ) && !empty( $_FILES ) ) {
    require_once(ABSPATH . 'wp-admin/includes/admin.php');
    $id = media_handle_upload('async-upload', 1199); //post id of Client Files page
    if ( is_wp_error($id) ) {
        $errors['upload_error'] = $id;
        $id = false;

    if ($errors) {
        echo "<p>There was an error uploading your file.</p>";
    } else {
        echo "<p>Your file has been uploaded.</p>";


how can make it one picture?

I wish you understand me ^* because my language ><

  • What's the problem with the thumbnails? It's technically what you ask for but this might have just too many side-effects so I thought I ask first :)
    – hakre
    Dec 20, 2010 at 16:47
  • The problem is when I uploaded a image (one image) the WP will creat more than 4 images with diffrent sizes .. I don't needed .. HOW I can cancel this function? thanks ^_^
    – AboSami
    Dec 21, 2010 at 19:17
  • AboSami, if you happen to return here ( seen Dec 25 '11 :), please select one of the great answers folks gave to your question (tough decision!)...
    – brasofilo
    Jul 7, 2012 at 7:57

4 Answers 4


Use wp_handle_upload() to handle uploads yourself, without creating attachments or resizing.

The media_handle_upload() function actually creates an attachment post, and the resizing process happens when wp_generate_attachment_metadata gets called. If you don't call that, then no resizing occurs.


HTML Markup:

  <label for="custom-upload">Upload New Image:</label>

  <input type="file" tabindex="3" name="custom-upload" id="custom-upload" />
  /*Retrieving the image*/
  $attachment = get_post_meta($postid, 'custom_image');

   echo wp_get_attachment_link($attachment[0], 'thumbnail', false, false);

Uploading the image:

global $post; /*Global post object*/

$post_id = $post->ID; /*Geting current post id*/
$upload = $_FILES['upload']; /*Receive the uploaded image from form*/
add_custom_image($post_id, $upload); /*Call image uploader function*/

function add_custom_image($post_id, $upload)
 $uploads = wp_upload_dir(); /*Get path of upload dir of wordpress*/

 if (is_writable($uploads['path']))  /*Check if upload dir is writable*/
  if ((!empty($upload['tmp_name'])))  /*Check if uploaded image is not empty*/
   if ($upload['tmp_name'])   /*Check if image has been uploaded in temp directory*/
    $file=handle_image_upload($upload); /*Call our custom function to ACTUALLY upload the image*/

    $attachment = array  /*Create attachment for our post*/
      'post_mime_type' => $file['type'],  /*Type of attachment*/
      'post_parent' => $post_id,  /*Post id*/

    $aid = wp_insert_attachment($attachment, $file['file'], $post_id);  /*Insert post attachment and return the attachment id*/
    $a = wp_generate_attachment_metadata($aid, $file['file'] );  /*Generate metadata for new attacment*/
    $prev_img = get_post_meta($post_id, 'custom_image');  /*Get previously uploaded image*/
     if($prev_img[0] != '')  /*If image exists*/
      wp_delete_attachment($prev_img[0]);  /*Delete previous image*/
    update_post_meta($post_id, 'custom_image', $aid);  /*Save the attachment id in meta data*/

    if ( !is_wp_error($aid) ) 
     wp_update_attachment_metadata($aid, wp_generate_attachment_metadata($aid, $file['file'] ) );  /*If there is no error, update the metadata of the newly uploaded image*/
   echo 'Please upload the image.';

function handle_image_upload($upload)
 global $post;

        if (file_is_displayable_image( $upload['tmp_name'] )) /*Check if image*/
    /*handle the uploaded file*/
            $overrides = array('test_form' => false);
            $file=wp_handle_upload($upload, $overrides);
 return $file;

If you're using WordPress 3.x, go to Admin > Settings > Media.

Under "Image Sizes", set all the values to zero (0), and uncheck the box labeled "Crop thumbnail to exact dimensions".

Click "save changes" and WP will no longer create thumbnails.

  • +1, was about to post the very same thing.. (spent the last 5-10 minutes testing uploads and intermediate sizes)..
    – t31os
    Dec 20, 2010 at 19:04
  • the problem still exists .. this is the defulte sizes : $default_sizes = array('large', 'medium', 'thumbnail' ); I want the default sizes is 'thumbanil' , 'photo_author' , 'big_image' .. etc (photo_author = 20 * 20 ) , (big_image = 600 * 600 ) for example ..
    – AboSami
    Dec 21, 2010 at 20:06
  • 1
    @AboSami This isn't what you asked for in your original question. You said "wordpress create more than one image diffrent sizes, this is a problem because I want one image only". If you now need to know how to ADD custom sizes, or to rename the existing sizes, that's a different question and should be posted separately. But while we're on the topic--why do you care what they're called internally? Just change medium to 20*20, and large to 600*600. Any of the standard sizes can be set to whatever width and height you want using the admin.
    – MathSmath
    Dec 21, 2010 at 21:14
  • I'm sorry because my quesition is not clear .. I need to reduce the defualte sizes there are three type (large , medium , thumbnail) I want to remove 'large' and 'medium'.also I want to add just 'big-picture'.HOW? thanks mr MATHSMATH
    – AboSami
    Dec 22, 2010 at 5:28

To prevent WordPress from creating multiple image for thumbnails while uploading, I'm using this code:

add_filter('intermediate_image_sizes_advanced', 'no_image_resizing');
    function no_image_resizing($size) {
        $ret = array();
        return $ret;

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