Question

When I execute the following script:

<?php
$num = 3;
list($num, $dec) = explode(".", $num);
?>

PHP says:

Notice: Undefined offset: 1 in /home/www/test.php on line 3

Other than disabling these notices, is there a way I can prevent this notice from showing up?

Answer 1

try this

$num = 3;

// forces to show the decimal point
$rnum = sprintf("%1\$.2f",$num);

list($num, $dec) = explode(".", $rnum);

EDIT for completeness:

alternatively you can also use number_format:

$rnum = number_format($num, 2); 

as suggested by Bojan Dević