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Retry helper

The retry helper simplifies automatic retries of actions that might occasionally fail.

By default the retry class will attempt to execute the closure up to 5 times and wait 50000 microseconds between each attempt. If the action fails too many times then the exception will be thrown.

$returnValue = (new Retry(function()
{
    // Some action that might fail
}))();

You can override the default values using the $attempts and $wait constructor parameters or by using the setAttempts and setWait methods. You can also enable exponential wait times by setting the $exponentialWait constructor parameter to true or by using the exponentialWait method.

$returnValue = (new Retry(function()
{
    // Some action that might fail
}))
->setAttempts(4)
->setWait(25000)
->exponentialWait()();

It is also possible to short-circuit the retry loop using a "decider" callable. If the callable returns true then execution will continue and if it returns false the exception will be thrown right away.

$returnValue = (new Retry(function()
{
    // Some action that might fail
}))
->setDecider(function($e)
{
    return ($e instanceof SpecialException::class) === false;
})();

You can also set the decider using the $decider constructor parameter.