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Informations about the package php-retry

Retry

A library for retrying actions that can fail.

Installation

Through composer:

"require": {
    ...
    "graceas/php-retry": "v0.0.3"
    ...
}

Usage (general example)

$retry = new Retry();

$i = 0;

$retry->retry(
    new RetryAction(
        // can pass any action that can fail (database query, curl loading, etc)
        function() use (&$i) {
            // simulate non-periodic error (eg broken database connection)
            $i++;

            return ($i > 3) ? $i : 1 / 0;
        },
        4 // expect 4 as result for callable function
    ),
    new LinearRetryStrategy(10 /* timeout ms */, 5 /* retrying times */)
);

if ($retry->isSuccess()) {
    // task success
} else {
    // task failed
    // echo $retry->getLog();
}

Example Output

echo $retry->getLog();

> 1577074792: [1 of 5] [sleep 10] Division by zero in /Users/gorelov/projects/php-retry/tests/RetryTest.php on line 52
> 1577074792: [2 of 5] [sleep 10] Division by zero in /Users/gorelov/projects/php-retry/tests/RetryTest.php on line 52
> 1577074792: [3 of 5] [sleep 10] Division by zero in /Users/gorelov/projects/php-retry/tests/RetryTest.php on line 52
> 1577074977: [4 of 5] [sleep 10] success

Backoff Strategies

LinearRetryStrategy - Each attempt waits a configured time.

ExponentialRetryStrategy - The base delay time is calculated as: time ^ attempt where attempt is the number of unsuccessful attempts that have been made.

All versions of php-retry with dependencies

PHP Build Version
Package Version
Requires php Version >=5.5.9
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