SEO Friendly Images for tags

Hello Newspaper community,

We are looking for a method to automatically add the image title of the uploaded photos to the alt tag for SEO purpose. We are trying this plugin:

https://wordpress.org/plugins/seo-image/

But it is not working. Do you know why? Is there any method to add automatically the same title of the images to the alt tag?

Thank you in advance.

Hey add this code to the bottom of ur “functions.php file” you don’t need a plugin to do this….it work because i’m using it on my site this code..

function add_alt_tags($content)
{
global $post;
preg_match_all(‘//’, $content, $images);
if(!is_null($images))
{
foreach($images[1] as $index => $value)
{
if(!preg_match(‘/alt=/’, $value))
{
$new_img = str_replace(‘<img’, ‘post_title.'”‘, $images[0][$index]);
$content = str_replace($images[0][$index], $new_img, $content);
}
}
}
return $content;
}
add_filter(‘the_content’, ‘add_alt_tags’, 99999);`

• This reply was modified 11 years by Steven.

Hi Steven. You are great!
I understand that with this code, the Title of the image will become automatically the Alt Tag. Does it affect to all the images in the website or just the new ones?
Thank you again.
And as always, thank you Lucian for your attention.

Ur both welcome,

@monicacortes what the code really do is add a Alt Tag automatically to all images that don’t have any,if you have uploaded images already that don’t have the Alt Tag the code will add it to those images automatically also any new ones you uploaded after.

Hello, Steven and Lucion.

I’m sorry but this code is not working. We are adding it to the bottom of our theme Functions.php and the website stop working.

Any advice?

Thanks.

Done, Lucian.

I was doing it in the child theme. But I suppose I have to do it in the main theme folder.

Just one question. With this code, when there is an image with no alt tag, the title of the post is included as alt tag. Is there anyway to change it and put the same title than the image, instead of the title post?

Thank you very much.

Hello Lucian,

This last solution seems very complicated.

We have added the first code, in order to add the post title to the alt tag of the images when it doesn’t exist.

We have added it to the original functions.php file (not in the child theme function.php file).

But as you can see in the code of this old page, is not working:

view-source:http://marronyblanco.com/secadora-prosteam-aeg/

How can we solve it?

Thank you in advance.

Hi Lucian,

So, in addition of the functions.php code, I have to modify this td.module.php file?

Sorry for my ignorance.

Simply amazing, Lucian! It works like a charm.
I think is a good SEO functionality.
Maybe you could consider to add it in the next update of the theme: if the user add manually an ALT tag, it has priority. But if the user forgets to add it, the theme could add automatically the name of the image file to the ALT tag. It’s better than nothing, isn’t it?

Once again, thank you for your incredible support.
Mònica.