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<?php $arr = array( 1, false, 2, 3 ); $maxRetries = 5; class RetryIterator { protected static $_currentRetries = 0; public static function iterate($element) { var_dump($element); if ($element == 2) { throw new Exception('Something went wrong'); } } public static function handleException($e, $array) { var_dump('Exception handled'); } public static function retry(&$array, $maxRetries, $iterateCallback, $handleCallback) { while (!empty($array)) { reset($array); $key = key($array); try { call_user_func($iterateCallback, ($array[$key])); unset($array[$key]); } catch (Exception $e) { static::$_currentRetries++; if (static::$_currentRetries <= $maxRetries) { call_user_func($handleCallback, $e, $array); } else { throw new Exception('maxRetries reached'); } } } } } RetryIterator::retry($arr, 5, 'RetryIterator::iterate', 'RetryIterator::handleException');
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
int(1) bool(false) int(2) string(17) "Exception handled" int(2) string(17) "Exception handled" int(2) string(17) "Exception handled" int(2) string(17) "Exception handled" int(2) string(17) "Exception handled" int(2) Fatal error: Uncaught Exception: maxRetries reached in /in/4qES3:33 Stack trace: #0 /in/4qES3(40): RetryIterator::retry(Array, 5, 'RetryIterator::...', 'RetryIterator::...') #1 {main} thrown in /in/4qES3 on line 33
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
int(1) bool(false) int(2) string(17) "Exception handled" int(2) string(17) "Exception handled" int(2) string(17) "Exception handled" int(2) string(17) "Exception handled" int(2) string(17) "Exception handled" int(2) Fatal error: Uncaught exception 'Exception' with message 'maxRetries reached' in /in/4qES3:33 Stack trace: #0 /in/4qES3(40): RetryIterator::retry(Array, 5, 'RetryIterator::...', 'RetryIterator::...') #1 {main} thrown in /in/4qES3 on line 33
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_PAAMAYIM_NEKUDOTAYIM, expecting T_VARIABLE in /in/4qES3 on line 29
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_PAAMAYIM_NEKUDOTAYIM, expecting T_VARIABLE in /in/4qES3 on line 29
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/4qES3 on line 8
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/4qES3 on line 8
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/4qES3 on line 8
Process exited with code 255.
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