floatval
floatval
(PHP 4 >= 4.2.0, PHP 5, PHP 7)
floatval — Get float value of a variable
Parameters
-
var -
May be any scalar type. floatval() should not be used on objects, as doing so will emit an
E_NOTICElevel error and return 1.
Return Values
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
Example #1 floatval() Example
<?php $var = '122.34343The'; $float_value_of_var = floatval($var); echo $float_value_of_var; // 122.34343 ?>
Example #2 floatval() non-numeric leftmost characters Example
<?php $var = 'The122.34343'; $float_value_of_var = floatval($var); echo $float_value_of_var; // 0 ?>
See Also
- boolval() - Get the boolean value of a variable
- intval() - Get the integer value of a variable
- strval() - Get string value of a variable
- settype() - Set the type of a variable
- Type juggling
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Licensed under the Creative Commons Attribution License v3.0 or later.
https://secure.php.net/manual/en/function.floatval.php
