# Class yii\web\UrlRule

Inheritance | yii\web\UrlRule » yii\base\BaseObject
Implements | yii\base\Configurable, yii\web\UrlRuleInterface
Available since version | 2.0
Source Code | https://github.com/yiisoft/yii2/blob/master/framework/web/UrlRule.php

UrlRule represents a rule used by yii\web\UrlManager for parsing and generating URLs.

To define your own URL parsing and creation logic you can extend from this class and add it to yii\web\UrlManager::$rules like this:

    'rules' => [
        ['class' => 'MyUrlRule', 'pattern' => '...', 'route' => 'site/index', ...],
        // ...
    ]

## Public Properties

Hide inherited properties

Property | Type | Description | Defined By
--- | --- | --- | ---
$createUrlStatus | null|integer | Status of the URL creation after the last createUrl() call. `null` if rule does not provide info about create status. This property is read-only. | yii\web\UrlRule
$defaults | array | The default GET parameters (name => value) that this rule provides. | yii\web\UrlRule
$encodeParams | boolean | A value indicating if parameters should be url encoded. | yii\web\UrlRule
$host | string | The pattern used to parse and create the host info part of a URL (e.g. `http://example. | yii\web\UrlRule
$mode | integer | A value indicating if this rule should be used for both request parsing and URL creation, parsing only, or creation only. | yii\web\UrlRule
$name | string | The name of this rule. | yii\web\UrlRule
$normalizer | yii\web\UrlNormalizer|array|false|null | The configuration for yii\web\UrlNormalizer used by this rule. | yii\web\UrlRule
$pattern | string | The pattern used to parse and create the path info part of a URL. | yii\web\UrlRule
$route | string | The route to the controller action | yii\web\UrlRule
$suffix | string | The URL suffix used for this rule. | yii\web\UrlRule
$verb | string|array | The HTTP verb (e.g. GET, POST, DELETE) that this rule should match. | yii\web\UrlRule

## Protected Properties

Hide inherited properties

Property | Type | Description | Defined By
--- | --- | --- | ---
$createStatus | integer|null | Status of the URL creation after the last createUrl() call. | yii\web\UrlRule
$placeholders | array | List of placeholders for matching parameters names. | yii\web\UrlRule

## Public Methods

Hide inherited methods

Method | Description | Defined By
--- | --- | ---
__call() | Calls the named method which is not a class method. | yii\base\BaseObject
__construct() | Constructor. | yii\base\BaseObject
__get() | Returns the value of an object property. | yii\base\BaseObject
__isset() | Checks if a property is set, i.e. defined and not null. | yii\base\BaseObject
__set() | Sets value of an object property. | yii\base\BaseObject
__toString() |  | yii\web\UrlRule
__unset() | Sets an object property to null. | yii\base\BaseObject
canGetProperty() | Returns a value indicating whether a property can be read. | yii\base\BaseObject
canSetProperty() | Returns a value indicating whether a property can be set. | yii\base\BaseObject
className() | Returns the fully qualified name of this class. | yii\base\BaseObject
createUrl() | Creates a URL according to the given route and parameters. | yii\web\UrlRule
getCreateUrlStatus() | Returns status of the URL creation after the last createUrl() call. | yii\web\UrlRule
hasMethod() | Returns a value indicating whether a method is defined. | yii\base\BaseObject
hasProperty() | Returns a value indicating whether a property is defined. | yii\base\BaseObject
init() | Initializes this rule. | yii\web\UrlRule
parseRequest() | Parses the given request and returns the corresponding route and parameters. | yii\web\UrlRule

## Protected Methods

Hide inherited methods

Method | Description | Defined By
--- | --- | ---
getNormalizer() |  | yii\web\UrlRule
getParamRules() | Returns list of regex for matching parameter. | yii\web\UrlRule
hasNormalizer() |  | yii\web\UrlRule
substitutePlaceholderNames() | Iterates over $placeholders and checks whether each placeholder exists as a key in $matches array. | yii\web\UrlRule

## Constants

Hide inherited constants

Constant | Value | Description | Defined By
--- | --- | --- | ---
CREATE_STATUS_PARAMS_MISMATCH | 4 | Represents the unsuccessful URL generation by last createUrl() call, because of mismatched or missing parameters. | yii\web\UrlRule
CREATE_STATUS_PARSING_ONLY | 1 | Represents the unsuccessful URL generation by last createUrl() call, because rule does not support creating URLs. | yii\web\UrlRule
CREATE_STATUS_ROUTE_MISMATCH | 2 | Represents the unsuccessful URL generation by last createUrl() call, because of mismatched route. | yii\web\UrlRule
CREATE_STATUS_SUCCESS | 0 | Represents the successful URL generation by last createUrl() call. | yii\web\UrlRule
CREATION_ONLY | 2 | Set $mode with this value to mark that this rule is for URL creation only. | yii\web\UrlRule
PARSING_ONLY | 1 | Set $mode with this value to mark that this rule is for URL parsing only. | yii\web\UrlRule

## Property Details

$createStatus protected property (available since version 2.0.12)

Status of the URL creation after the last createUrl() call.

protected integer|null $createStatus = null
$createUrlStatus public property

Status of the URL creation after the last createUrl() call. `null` if rule does not provide info about create status. This property is read-only.

public null|integer $createUrlStatus = null
$defaults public property

The default GET parameters (name => value) that this rule provides. When this rule is used to parse the incoming request, the values declared in this property will be injected into $_GET.

public array $defaults = []
$encodeParams public property

A value indicating if parameters should be url encoded.

public boolean $encodeParams = true
$host public property

The pattern used to parse and create the host info part of a URL (e.g. `http://example.com`).

See also $pattern.

public string $host = null
$mode public property

A value indicating if this rule should be used for both request parsing and URL creation, parsing only, or creation only. If not set or 0, it means the rule is both request parsing and URL creation. If it is PARSING_ONLY, the rule is for request parsing only. If it is CREATION_ONLY, the rule is for URL creation only.

public integer $mode = null
$name public property

The name of this rule. If not set, it will use $pattern as the name.

public string $name = null
$normalizer public property (available since version 2.0.10)

The configuration for yii\web\UrlNormalizer used by this rule. If `null`, yii\web\UrlManager::$normalizer will be used, if `false`, normalization will be skipped for this rule.

public yii\web\UrlNormalizer|array|false|null $normalizer = null
$pattern public property

The pattern used to parse and create the path info part of a URL.

See also:

- $host
- $placeholders

public string $pattern = null
$placeholders protected property (available since version 2.0.7)

List of placeholders for matching parameters names. Used in parseRequest(), createUrl(). On the rule initialization, the $pattern parameters names will be replaced with placeholders. This array contains relations between the original parameters names and their placeholders. The array keys are the placeholders and the values are the original names.

See also:

- parseRequest()
- createUrl()

protected array $placeholders = []
$route public property

The route to the controller action

public string $route = null
$suffix public property

The URL suffix used for this rule. For example, ".html" can be used so that the URL looks like pointing to a static HTML page. If not set, the value of yii\web\UrlManager::$suffix will be used.

public string $suffix = null
$verb public property

The HTTP verb (e.g. GET, POST, DELETE) that this rule should match. Use array to represent multiple verbs that this rule may match. If this property is not set, the rule can match any verb. Note that this property is only used when parsing a request. It is ignored for URL creation.

public string|array $verb = null

## Method Details

__toString() public method (available since version 2.0.11)

public string __toString ( )

createUrl() public method

Creates a URL according to the given route and parameters.

public string|boolean createUrl ( $manager, $route, $params )
$manager | yii\web\UrlManager | The URL manager
$route | string | The route. It should not have slashes at the beginning or the end.
$params | array | The parameters
return | string|boolean | The created URL, or `false` if this rule cannot be used for creating this URL.

getCreateUrlStatus() public method (available since version 2.0.12)

Returns status of the URL creation after the last createUrl() call.

See also $createStatus.

public null|integer getCreateUrlStatus ( )
return | null|integer | Status of the URL creation after the last createUrl() call. `null` if rule does not provide info about create status.

getNormalizer() protected method (available since version 2.0.10)

protected yii\web\UrlNormalizer|null getNormalizer ( $manager )
$manager | yii\web\UrlManager | The URL manager

getParamRules() protected method (available since version 2.0.6)

Returns list of regex for matching parameter.

protected array getParamRules ( )
return | array | Parameter keys and regexp rules.

hasNormalizer() protected method (available since version 2.0.10)

protected boolean hasNormalizer ( $manager )
$manager | yii\web\UrlManager | The URL manager

init() public method

Initializes this rule.

public void init ( )

parseRequest() public method

Parses the given request and returns the corresponding route and parameters.

public array|boolean parseRequest ( $manager, $request )
$manager | yii\web\UrlManager | The URL manager
$request | yii\web\Request | The request component
return | array|boolean | The parsing result. The route and the parameters are returned as an array. If `false`, it means this rule cannot be used to parse this path info.

substitutePlaceholderNames() protected method (available since version 2.0.7)

Iterates over $placeholders and checks whether each placeholder exists as a key in $matches array.

When found - replaces this placeholder key with a appropriate name of matching parameter. Used in parseRequest(), createUrl().

See also $placeholders.

protected array substitutePlaceholderNames ( array $matches )
$matches | array | Result of `preg_match()` call
return | array | Input array with replaced placeholder keys