How do I run PHP code when a user clicks on a link?

How do I run PHP code when a user clicks on a link?

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php

How to force an HTML link to be absolute?

php html anchor relative-path absolute-path

php

Add http:// prefix to URL when missing

php http html anchor href

php

CodeIgniter - Correct way to link to another page in a view

php codeigniter anchor

php

How to create a link to another PHP page

php html templates hyperlink anchor

php

Are ^$ and $^ in PHP regex the same?

php regex preg-match anchor pcre

php

DOM Error - ID 'someAnchor' already defined in Entity, line X

php dom anchor

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