touchy finger

I had similar problems with wp_get_attachment_image_src, started pulling my hair out!

It would appear, and I’m reluctant to say this being a relative amateur, that Codex is wrong… or something weird is going on.

As you say, if you var_dump(wp_get_attachment_image_src($post->ID, $size)) you get an array with four values. Whereas Codex says you should only get only three.

Codex says you get:

array(
[0] => image URL
[1] => width
[2] => height
)

And a boolean FALSE on failure.

Whereas both yours and my results give a four value array.

array(
[0] => image URL
[1] => width
[2] => height
[3] => boolean[true/false]
)

Just like you I was feeding wp_get_attachment_image_src a previously designated custom image size using add_image_size().

In instances where that custom image size didn’t exist for that image attachment (i.e. older posts published before I started using custom image size) wp_get_attachment_image_src still returns the array but with the fullsize image URL – BUT value 4 (key value 3) is false!

So to check if your retrieval of a custom image size is successful you have to:

$image_main_ar = wp_get_attachment_image_src( $image_ID, 'product_image_main' );
if(!$image_main_ar[3]) { do something else ... maybe:
$image_main_ar = wp_get_attachment_image_src( $image_ID );  }

Hope that makes sense!

Here’s my code that’s failing dismally… any suggestions?

// in the WP loop

$post_ID = get_the_ID();
$content = get_the_content();
image_transfer($content, $post_ID);

// in my functions.php

function image_transfer($string, $post_id){

// use simple_html_dom to parse string and extract image url from img src
$html = str_get_html($string);
foreach($html->find('img') as $element) {

// copied from acsnaterse code above
$filepath = $element->src;
$wp_filetype = wp_check_filetype( basename( $filepath ), null );
$aFile["name"] = basename( $filepath );
$aFile["type"] = $wp_filetype;
$afile["tmp_name"] = $filepath;

$attach_id = media_handle_sideload( $aFile, $post_id );

// see what's going on...
print_r($wp_filetype);
echo '<br/><br/>';
print_r($attach_id);

}

Thanks.

I’d love some info on media_handle_sideload too! Any feedback?

I’m having real problems getting media_handle_sideload to work. Does the filepath have to be relative? Surely it can also handle an absolute path?

I’m trying to copy images from one website to another (upgrading a joomla site to a WP site while the joomla site stays live) and have extracted the URL’s to the images from the img tags using a Simple_Html_DOM parser.

I think I should be able to feed these URL’s to media_handle_sideload and the function handles the image file transfer… but it won’t work!! I keep getting “[upload error] file is empty, try uploading something more substantial”.

I’ve tried duplicating acsnaterse’s code but that doesn’t seem to change things.

Many thanks for any suggestions.

Hi Jan212 – Congrats on getting it to work.

I’m doing an import from a really old Joomla into WP. Having copied all the posts (7000+) over, now I need to also copy their related images.

Basically I just have a url to each image.

I’ve just started looking at using media_handle_sideload but haven’t gotten it to work yet.

Can you offer any tips on how you got it work?

Many thanks!