Is using regular expressions a recommended approach for analyzing mathematical expressions in PHP?

When analyzing mathematical expressions in PHP, using regular expressions can be a helpful approach to parse and evaluate the expressions. Regular expressions allow you to define patterns that match specific parts of the expression, making it easier to extract and manipulate the mathematical components. However, it is important to note that regular expressions may not be the most efficient or robust solution for complex mathematical expressions, so it's essential to consider the complexity of the expressions you are working with. 

$expression = "2 + 3 * 5";

// Use regular expressions to extract numbers and operators
preg_match_all('/(\d+|\+|\-|\*|\/)/', $expression, $matches);

$numbers = $matches[1];
$operators = array_filter($numbers, function($value) {
    return !is_numeric($value);
});

var_dump($numbers);
var_dump($operators);

Keywords

regular expressions mathematical expressions PHP analysis recommended approach

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