This procedure is tested on Mac OS X 10.14.0 with Xcode Developer Tools installed (xCode).
PHP 5.6, 7.0, 7.1, and 7.2 installed with Homebrew following the instructions here.
Download the following files from Oracle website (yes, you need to create an account and accept terms):
| /** | |
| * Sends an HTML snippet to the W3C validator and returns the result as JSON. | |
| * @param string $html HTML code | |
| * @return string | |
| * @link https://github.com/validator/validator/wiki/Service:-Input:-POST-body | |
| * @link https://gist.github.com/tap52384/60cc27fd0a76869cc38b#file-php_html_validator-php | |
| */ | |
| public static function validateHtml($html = '') | |
| { | |
| $default = array( |
| // Given a query string "?to=email&why=because&first=John&Last=smith" | |
| // getUrlVar("to") will return "email" | |
| // getUrlVar("last") will return "smith" | |
| // 'unescape' is now deprecated for security reasons, so it is replaced here by decodeURIComponent | |
| // MDN proof: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/unescape | |
| // Slightly more concise and improved version based on http://www.jquery4u.com/snippets/url-parameters-jquery/ | |
| function getUrlVar(key){ | |
| var result = new RegExp(key + '=([^&]*)', 'i').exec(window.location.search); | |
| return result && decodeURIComponent( result[ 1 ] ) || ''; |
| <?php | |
| /** | |
| * Time unit defaults to seconds to follow the example shown here: | |
| * http://mitan.co.uk/erlang/elgcmath.htm | |
| * exp calculates e to some specified exponent: | |
| * https://secure.php.net/manual/en/function.exp.php | |
| * factorial function for php: | |
| * http://www.hackingwithphp.com/4/18/0/recursive-functions | |
| * Basically, all calculated values are private. |