PHP intval() Function

Example

Return the integer value of different variables:

<?php
$a = 32;
echo intval($a) . " ";

$b = 3.2;
echo intval($b) . " ";

$c = "32.5";
echo intval($c) . " ";

$d = array();
echo intval($d) . " ";

$e = array("red", "green", "blue");
echo intval($e) . " ";
?>

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Definition and Usage

The intval() function returns the integer value of a variable.

Syntax

intval(variable, base);

Parameter Values

Parameter	Description
variable	Required. Specifies the variable to check
base	Optional. Specifies the base to use for the conversion. Only has effect if variable is a string. Default base is 10

Technical Details

Return Value:	The integer value of the variable on success, 0 on failure. An empty array will return 0, and a non-empty array will return 1
Return Type:	Integer
PHP Version:	4.0+
PHP Changelog:	PHP 5.1: When an object is passed to variable, it throws E_NOTICE and returns 1

❮ PHP Variable Handling Reference