PHP doubleval() Function

Example

Return the float value of different variables:

<?php
$a = "1234.56789";
echo doubleval($a) . "<br>";

$b = "1234.56789Hello";
echo doubleval($b) . "<br>";

$c = "Hello1234.56789";
echo doubleval($c) . "<br>";
?>

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Definition and Usage

The doubleval() function returns the float value of a variable.

This function is an alias of floatval().

Syntax

doubleval( variable);

Parameter Values

Parameter	Description
variable	Required. Specifies the variable to check. Must be a scalar type

Technical Details

Return Value:	The float 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:	Float
PHP Version:	4.0+

❮ PHP Variable Handling Reference