Use PHP functions in JavaScript

JavaScript floatval

Get the float value of a variable

function floatval (mixed_var) {
    // +   original by: Michael White (http://getsprink.com)
    // %        note 1: The native parseFloat() method of JavaScript returns NaN when it encounters a string before an int or float value.
    // *     example 1: floatval('150.03_page-section');
    // *     returns 1: 150.03    // *     example 2: floatval('page: 3');
    // *     returns 2: 0
    // *     example 2: floatval('-50 + 8');
    // *     returns 2: -50
    return (parseFloat(mixed_var) || 0);}

external links: original PHP docs | raw js source

Examples

» Example 1

Running

1	floatval('150.03_page-section');

Should return

150.03

» Example 2

Running

1 2	floatval('page: 3'); floatval('-50 + 8');

Should return

-50

Dependencies

No dependencies, you can use this function standalone.

Open syntax issues

php.js uses JsLint to help us keep our code consistent and prevent some common bugs.

Eventually we want all code to pass or at least take into consideration most fixes suggested by JsLint, following this JsLint configuration we’ve decided on.