floatval

(PHP 4 >= 4.2.0, PHP 5, PHP 7)

Get float value of a variable

float floatval ( mixed $var )

Gets the float value of var.

Parameters:

var

May be any scalar type. floatval() should not be used on objects, as doing so will emit an E_NOTICE level error and return 1.

Returns:

The float value of the given variable. Empty arrays return 0, non-empty arrays return 1.

Strings will most likely return 0 although this depends on the leftmost characters of the string. The common rules of float casting apply.

Examples:

floatval() Example

<?php
$var = '122.34343The';
$float_value_of_var = floatval($var);
echo $float_value_of_var; // 122.34343
?>

floatval() non-numeric leftmost characters Example

<?php
$var = 'The122.34343';
$float_value_of_var = floatval($var);
echo $float_value_of_var; // 0
?>