How to use image_send_to_editor filter in WordPress

image_send_to_editor filter

So, you’re diving into WordPress hooks, huh? Let’s chat about the image_send_to_editor filter. This little gem lets you tweak the image HTML markup that gets sent to your editor when you’re inserting images. Whether you’re updating your theme’s functions.php or working on a custom plugin, this filter’s got your back.

At WePlugins, we always recommend creating a custom plugin for hooks. This way, your tweaks won’t vanish into thin air when you update your theme. Also, if you ever need to yank a registered hook, remove_filter is your tool of choice.

Example 1: Adding Custom Data Attributes

Want to add some custom data attributes to your image tag? Check this out:

    /**   
     * Add the data-media-description and data-media-full attributes to inserted image tag. 
     */
    add_filter( 'image_send_to_editor', 'weplugins_add_custom_data_attribute_send_to_editor', 10, 8 );
    function weplugins_add_custom_data_attribute_send_to_editor( $html, $id, $caption, $title, $align, $url, $size, $alt ){  
        if( $id > 0 ){
            $post = get_post( $id );
            $media_data = array(
                $post->ID, // media id
                $post->post_content // media description
            );
            // set data-media-description
            // set data-media-url
        }
        return $html;
    }
    

Example 2: Modifying Image HTML

Here’s how you can modify the HTML output for images:

    function weplugins_modify_image_send_to_editor_defaults($html, $id, $caption, $title, $align, $url, $size, $alt, $rel) { 
        // Update the $html as you need.
        return $html; 
    }
    // add the filter
    add_filter( "image_send_to_editor", "weplugins_modify_image_send_to_editor_defaults", 10, 9 );
    

Example 3: Removing a Hook Callback

Need to remove a hook? Here’s the way to do it:

    remove_filter( "image_send_to_editor", "weplugins_modify_image_send_to_editor_defaults", 10, 9 );
    

Make sure you provide the same callback function name, priority, and number of arguments while removing the hook callback.

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