How to convert a string into number in PHP?

To convert a string into a number, the code is as follows−

Example

 Live Demo

<?php    $str = "150";    $num = (int)$str;    echo "Number (Converted from String) = $num"; ?>

Output

This will produce the following output−

Number (Converted from String) = 150

Example

Let us now see another example−

 Live Demo

<?php    $str = "100.56";    echo "String = $str";    $num = floatval($str);    echo "
Number (Converted from String) = $num"; ?>

Output

This will produce the following output−

String = 100.56 Number (Converted from String) = 100.56