Question

the php code is pretty simple :

<?php

$my_bn_num=number_bangla(0123);

function number_bangla($num1){
echo ("<br>num =".$num1);
}

?>

And the ouput is: num=83

But if I call the function with a singly quoted string like this:

$my_bn_num=number_bangla('0123');

the output is: num=0123

What is the detailed difference between 0123 and ‘0123’ here ?

Answer 1

0123 is a numeric value whereas ‘0123’ is a string value. Internally PHP stores those types differently.

In order to cast string to integer you can do following:

$num = (int) $num;

In this particular example printing number 0123 results to 83 because 0123 is an octal value. For casting octal strings to octal numbers PHP offers octdec() function:

$num = octdec($num);