What do these mean?

[The Little Guy]

Can someone explain what the ? and the : are for?

 

Here is an example that I have:

echo ($page == $i) ? " <u><b>$i</b></u> " : ' <a href="'.$_SERVER['PHP_SELF'].'?page='.$i;

[fert]

this code is the same as

if($page==$1) 
{
echo " <u><b>$i</b></u> " 
}
else
{
echo ' <a href="'.$_SERVER['PHP_SELF'].'?page='.$i;
}

http://www.php.net/manual/en/language.expressions.php

[jitesh]

This is ternary if condition   to decrease line of codes

 

echo ($page == $i) ? " <u><b>$i</b></u> " : ' <a href="'.$_SERVER['PHP_SELF'].'?page='.$i;

[The Little Guy]

Thanks.

 

is it only if/else? or is there an else if?