NOTE: For Version 3 of the AWS SDK for PHP, please see the V3 User Guide and V3 API Reference.

# Class LinearBackoffStrategy

Implements a linear backoff retry strategy.

Warning: If no decision making strategies precede this strategy in the the chain, then all requests will be retried

  Guzzle\Plugin\Backoff\AbstractBackoffStrategy implements Guzzle\Plugin\Backoff\BackoffStrategyInterface
  Guzzle\Plugin\Backoff\LinearBackoffStrategy

Namespace: Guzzle\Plugin\Backoff
Located at Guzzle/Plugin/Backoff/LinearBackoffStrategy.php

## Methods summary

- `public` `__construct ( int $step = 1 )`
- `public` `makesDecision ( )`

  Check if the strategy does filtering and makes decisions on whether or not to retry.

- `protected` `getDelay ( int $retries, Guzzle\Http\Message\RequestInterface $request, Guzzle\Http\Message\Response $response = null, Guzzle\Http\Exception\HttpException $e = null )`

  Implement the concrete strategy

## Methods detail

# `public`
`__construct( integer $step = 1 )`

#### Parameters

$step
  `integer`
  $step Amount of time to increase the delay each additional backoff

# `public boolean`
`makesDecision( )`

Check if the strategy does filtering and makes decisions on whether or not to retry.

Strategies that return false will never retry if all of the previous strategies in a chain defer on a backoff decision.

#### Returns

`boolean`
# `protected boolean|integer|null`
`getDelay( integer $retries, `Guzzle\Http\Message\RequestInterface` $request, `Guzzle\Http\Message\Response` $response = null, `Guzzle\Http\Exception\HttpException` $e = null )`

Implement the concrete strategy

#### Parameters

$retries
  `integer`
  $retries Number of retries of the request
$request
  ``Guzzle\Http\Message\RequestInterface``
  $request Request that was sent
$response
  ``Guzzle\Http\Message\Response``
  $response Response that was received. Note that there may not be a response
$e
  ``Guzzle\Http\Exception\HttpException``
  $e Exception that was encountered if any

#### Returns

`boolean|integer|null`
Returns false to not retry or the number of seconds to delay between retries. Return true or null to defer to the next strategy if available, and if not, return 0.

### Methods inherited from Guzzle\Plugin\Backoff\AbstractBackoffStrategy

`getBackoffPeriod()`, `getNext()`, `setNext()`

### Magic methods summary

## Properties summary

`protected integer` | $step | # Amount of time to progress each delay

### Properties inherited from Guzzle\Plugin\Backoff\AbstractBackoffStrategy

`$next`