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run code in 300+ PHP versions simultaneously
<?php $steps = [ 2500, 5000, 10000, ]; for ($i = 0, $count = count($steps); $i < $count; $i++) { $step = $steps[$i] + 1; $previousStepDiff = $step - ($steps[$i-1] ?? $steps[0]); echo <<<sql select avg(requestTimeSec) from {tableName} where {column} between ((select max({column}) from {tableName}) - {$step}) and (((select max({column}) from {tableName}) - {$previousStepDiff})) sql; }
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
select avg(requestTimeSec) from {tableName} where {column} between ((select max({column}) from {tableName}) - 2501) and (((select max({column}) from {tableName}) - 1)) select avg(requestTimeSec) from {tableName} where {column} between ((select max({column}) from {tableName}) - 5001) and (((select max({column}) from {tableName}) - 2501)) select avg(requestTimeSec) from {tableName} where {column} between ((select max({column}) from {tableName}) - 10001) and (((select max({column}) from {tableName}) - 5001))

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116.17 ms | 403 KiB | 89 Q