The conditional statement "else" is used as extension of "if" statement. If the condition fails then it executes another statements under the "else" condition.

Syntax

    if (expr)	
       {Statements}//true
    else
       {Statements}//false

Based on the result of expressions, the statements are executed.

Example

    <?php
    $c = 10;
    $d = 20;
    if ($c > $d)
     {echo "C is bigger than d";}
    else
     {echo "D is bigger than c";}
    ?>

    D is bigger than C 

In the above example in the if the condition "$c>$d" is true then the message "C is bigger than D" is displayed, else the message "D is bigger than C" is displayed.