explain pls..

birdbird · #1 18-Apr-2003, 10:14

i m beginner. pls explain for me where i highlighted.

<a href="who_are_you_advanced.php<?php print($query_string) ?>">
Back to Who Are You Advanced
</a>

lets say this:

<?php print($query_string) ?>

cut from the sentence then wat will happen?? n wat is that means??

JdS · #2 18-Apr-2003, 11:34

The query string is the part in a url AFTER the ?.

Let's say the url is:
http://www.desilva.biz/index.php?city=kualalumpur&name=JdS
so the part in bold is the query string i.e. city=kualalumpur&name=JdS.

Copy this file (test.php) and try it:

PHP Code:


<?php
if( empty($_SERVER['QUERY_STRING']) ):
  echo '<p>A link with a QUERY STRING : <a href="test2.php?q=whatever&amp;s=blah">CLICK ME!</a></p>'."\\n";
else:
  echo '<p>Your last link was with a query string ($_SERVER[QUERY_STRING]): <b>'. $_SERVER['QUERY_STRING'].'</b></p>'."\\n";
  echo '<p>A link with NO QUERY STRING : <a href="test2.php">CLICK ME!</a></p>'."\\n";    
endif;

?>

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explain pls..

What is query string?