How To validate for w3c


i need help to validate for w3c this code.
please help me.

<img class=“thumb” src=“{$link.URL|escape|trim}”>

then how i input “ALT tag” in that code??

You don’t validate php code, nor templates. You validate the resulting html code (the code you see in your browser).

As for ‘how do i input “ALT tag” in that code’… you put an alt attribute in it.
W3Schools’ Image Tag Page

so can you gimme advice like example??
i really new on w3c it self…

thanks for your respond

Click the link above. There’s an example of an image tag with an alt attribute right there. S’got a pretty green box around it.