images - Get Attachment ID from URL

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This question already has answers here: Turn a URL into an Attachment / Post ID (6 answers) Closed 10 years ago.

I have the URL of an image which I know is an attachment. Now, I need to find out the attachment ID.

This is what I've got (thanks to PippinsPlugins):

// retrieves the attachment ID from the file URL
function pippin_get_image_id($image_url) {
    global $wpdb;
    $attachment = $wpdb->get_col($wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE guid='%s';", $image_url )); 
        return $attachment[0]; 
}

This works fine for an URL like this: .png

My problem is, the URL is the URL of a cropped picture, so it is .png

My next problem is right now, I can't simply explode the URL to remove 300x297, since I might have pictures, which are not cropped but might have a file name like 'picture2-dontexplodeme.png'

Basically, I need a fool proof solution haha. If there is anyone out there, who has an easy solution, I would be very happy :)

This question already has answers here: Turn a URL into an Attachment / Post ID (6 answers) Closed 10 years ago.

I have the URL of an image which I know is an attachment. Now, I need to find out the attachment ID.

This is what I've got (thanks to PippinsPlugins):

// retrieves the attachment ID from the file URL
function pippin_get_image_id($image_url) {
    global $wpdb;
    $attachment = $wpdb->get_col($wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE guid='%s';", $image_url )); 
        return $attachment[0]; 
}

This works fine for an URL like this: http://example/wp-content/uploads/2015/03/picture.png

My problem is, the URL is the URL of a cropped picture, so it is http://example/wp-content/uploads/2015/03/picture-300x297.png

My next problem is right now, I can't simply explode the URL to remove 300x297, since I might have pictures, which are not cropped but might have a file name like 'picture2-dontexplodeme.png'

Basically, I need a fool proof solution haha. If there is anyone out there, who has an easy solution, I would be very happy :)

• images
• attachments

Share Improve this question asked Apr 13, 2015 at 17:06 websupporterwebsupporter 3,01922 gold badges2020 silver badges1919 bronze badges 4

• 1 Is doing it from the CSS (easiest client side with jQuery) an option? e.g. images that have been inserted into posts with the Add Media button will typically have a class like wp-image-123, indicating the attachment ID. If the images are inserted automatically elsewhere in the theme, could you add a CSS class or a data attribute containing the ID? – William Turrell Commented Apr 13, 2015 at 17:49
• @ialocin yes, I would call it a duplicate. Perfect solution, from there I can go on. thanks – websupporter Commented Apr 13, 2015 at 17:51
• My pleasure. I just remembered there is a good answer to a similar question already. Thats why we still need humans, because the system isn't smart enough - yet :) – Nicolai Grossherr Commented Apr 13, 2015 at 17:54
• 1 You can use core function attachment_url_to_postid() – JakeParis Commented Sep 13, 2022 at 18:13

Add a comment  | 

1 Answer 1

Sorted by: Reset to default 2

function get_attachment_id_from_src ($image_src) {

    global $wpdb;
    $query = "SELECT ID FROM {$wpdb->posts} WHERE guid='$image_src'";
    $id = $wpdb->get_var($query);
    return $id;

}

This question already has answers here: Turn a URL into an Attachment / Post ID (6 answers) Closed 10 years ago.

I have the URL of an image which I know is an attachment. Now, I need to find out the attachment ID.

This is what I've got (thanks to PippinsPlugins):

// retrieves the attachment ID from the file URL
function pippin_get_image_id($image_url) {
    global $wpdb;
    $attachment = $wpdb->get_col($wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE guid='%s';", $image_url )); 
        return $attachment[0]; 
}

This works fine for an URL like this: .png

My problem is, the URL is the URL of a cropped picture, so it is .png

My next problem is right now, I can't simply explode the URL to remove 300x297, since I might have pictures, which are not cropped but might have a file name like 'picture2-dontexplodeme.png'

Basically, I need a fool proof solution haha. If there is anyone out there, who has an easy solution, I would be very happy :)

This question already has answers here: Turn a URL into an Attachment / Post ID (6 answers) Closed 10 years ago.

I have the URL of an image which I know is an attachment. Now, I need to find out the attachment ID.

This is what I've got (thanks to PippinsPlugins):

// retrieves the attachment ID from the file URL
function pippin_get_image_id($image_url) {
    global $wpdb;
    $attachment = $wpdb->get_col($wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE guid='%s';", $image_url )); 
        return $attachment[0]; 
}

This works fine for an URL like this: http://example/wp-content/uploads/2015/03/picture.png

My problem is, the URL is the URL of a cropped picture, so it is http://example/wp-content/uploads/2015/03/picture-300x297.png

My next problem is right now, I can't simply explode the URL to remove 300x297, since I might have pictures, which are not cropped but might have a file name like 'picture2-dontexplodeme.png'

Basically, I need a fool proof solution haha. If there is anyone out there, who has an easy solution, I would be very happy :)

• images
• attachments

Share Improve this question asked Apr 13, 2015 at 17:06 websupporterwebsupporter 3,01922 gold badges2020 silver badges1919 bronze badges 4

• 1 Is doing it from the CSS (easiest client side with jQuery) an option? e.g. images that have been inserted into posts with the Add Media button will typically have a class like wp-image-123, indicating the attachment ID. If the images are inserted automatically elsewhere in the theme, could you add a CSS class or a data attribute containing the ID? – William Turrell Commented Apr 13, 2015 at 17:49
• @ialocin yes, I would call it a duplicate. Perfect solution, from there I can go on. thanks – websupporter Commented Apr 13, 2015 at 17:51
• My pleasure. I just remembered there is a good answer to a similar question already. Thats why we still need humans, because the system isn't smart enough - yet :) – Nicolai Grossherr Commented Apr 13, 2015 at 17:54
• 1 You can use core function attachment_url_to_postid() – JakeParis Commented Sep 13, 2022 at 18:13

Add a comment  | 

1 Answer 1

Sorted by: Reset to default 2

function get_attachment_id_from_src ($image_src) {

    global $wpdb;
    $query = "SELECT ID FROM {$wpdb->posts} WHERE guid='$image_src'";
    $id = $wpdb->get_var($query);
    return $id;

}

本文标签： imagesGet Attachment ID from URL