Are there existing MathExpression parsers available for PHP that can be utilized?

There are existing MathExpression parsers available for PHP that can be utilized to parse and evaluate mathematical expressions. One popular library is the "mossadal/math-parser" library, which allows you to parse and evaluate mathematical expressions easily in PHP.

// Install the library using Composer
composer require mossadal/math-parser

// Example of using the MathExpression parser
require_once 'vendor/autoload.php';

use MathParser\StdMathParser;

$parser = new StdMathParser();
$result = $parser->parse('2 + 2 * 3')->evaluate();

echo $result; // Output: 8