How do I force a value to be treated as a number?

If you want to force a variable to be treated a certain way, for instance as an integer, you can "type cast" it as follows.

Here's an example:


<?php

$value = (int) "25atoz";

$multiple = $value * $value;

echo "$multiple";

?>

This will print '625' to the screen. Using the word (int) ensures PHP creates an integer variable with a value of '25' - otherwise it would create a string variable.

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How do I force a value to be treated as a number?

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