[End User]

Originally Posted by karthikanov24

Code:

echo "<a href=\" " . $_SERVER['PHPSELF'] . "?c=$catId&p=$pd_id" . "\">link</a>";

But why third and sixth double quotes and concatination (.) which is present before and after
$_SERVER['PHPSELF'] . "?c=$catId&p=$pd_id"
is used??

They're being used to jump in and out of the print statement so the value of "$_SERVER['PHPSELF']" can be inserted inline.