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<?php $start = new DateTime('2009-10-11'); $end = new DateTime('2010-12-23'); $diff = $end->diff($start); $months = ($diff->y * 12) + $diff->m; $rollup = 0; var_dump("months: $months"); while ($months-- > 0) { echo "rollup: $rollup".PHP_EOL; $rollup += $rollup ?: 500; } var_dump("result: $rollup");
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
string(10) "months: 14" rollup: 0 rollup: 500 rollup: 1000 rollup: 2000 rollup: 4000 rollup: 8000 rollup: 16000 rollup: 32000 rollup: 64000 rollup: 128000 rollup: 256000 rollup: 512000 rollup: 1024000 rollup: 2048000 string(15) "result: 4096000"
preferences:
132.48 ms | 408 KiB | 5 Q