Neuron-PHP

RouteParam extends Base
in package

Exception thrown when route parameter processing fails or validation errors occur.

This exception is used by the routing system to indicate problems with route parameters, including missing required parameters, invalid parameter formats, type conversion failures, or constraint violations. It helps distinguish routing parameter issues from general application errors.

Common routing parameter issues:

  • Missing required route parameters (e.g., /users/:id without id)
  • Invalid parameter formats (e.g., non-numeric id when number expected)
  • Parameter constraint violations (e.g., id must be positive integer)
  • Type conversion failures (e.g., string to integer conversion errors)
  • Parameter validation rule failures (e.g., length, pattern, range checks)

Typical usage scenarios:

  • Route parameter extraction and validation
  • Dynamic route matching with parameter constraints
  • RESTful API parameter processing
  • URL parameter type checking and conversion
Tags
example 
// Thrown when route parameter is invalid
if (!is_numeric($userId)) {
    throw new RouteParam("User ID must be numeric, got: {$userId}");
}

// Thrown when required parameter missing
if (empty($routeParams['id'])) {
    throw new RouteParam("Required route parameter 'id' is missing");
}

// Caught in route processing
try {
    $controller->show($routeParams['id']);
} catch (RouteParam $e) {
    // Handle invalid route parameter
    return $this->notFound('Invalid resource identifier');
}

Table of Contents

Methods

__construct()  : mixed

Methods

__construct()

public __construct(string $message) : mixed
Parameters
$message : string 

        

        
    




    

    

                                

                

                                
    

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