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PHP

Posted by vinay mantena
vinay mantena
735 Points

$name=null; if($name) { code } else { code }

what is meaning of if($name) represents here?

Rohit Upadhyay
Rohit Upadhyay
Courses Plus Student 37 Points

Hey Vinay , You are using if condition which execute when the condition is true or false. As in your code $name is set to null so $name will treated as false value and else code block will execute. if($name) will check whether the $name has value or not.If it has value condition is true otherwise false.

1 Answer

Codin - Codesmite
Codin - Codesmite
8,600 Points
Codin - Codesmite
Codin - Codesmite
8,600 Points

It is shorthand for is true.

By setting $name to null it will return false.

NULL, 0 and FALSE all return as false and not true.

So:

<?php
    $name = null; 
    if($name) { 
        // code 
    }
?>

Is basicaly just a short way of declaring

<?php
    $name = null; 
    if($name == TRUE) { 
        // code 
    }
?>

You can also add ! to check for if false.

<?php
    $name = null; 
    if(!$name) { 
        // code 
    }
?>