Slim Validation

Seamlessly plugs into Slim's middleware architecture, allowing validation to be added per-route or globally without disrupting application flow, as demonstrated in the per-route and global registration examples.

Validates GET/POST parameters, route params, JSON, and XML payloads with a unified API, including nested structures using dot notation, shown in the JSON and XML validation sections.

Leverages Respect/Validation's extensive library of over 150 validators for complex constraints like string length, numeric ranges, and custom patterns, reducing the need for custom validation code.

Automatically attaches validation errors and a 'has_errors' flag to the request object, making error access straightforward in route handlers without additional setup, as illustrated in the usage examples.