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run code in 300+ PHP versions simultaneously
<?php $sunday = new DateTimeImmutable('Sunday'); foreach(new DatePeriod($sunday, new DateInterval('P1D'), 6) as $date) { $dow = $date->format('w'); $weekday = $sunday->add(new DateInterval('P' . $dow . 'D')); printf('%s = %s (%s)' . PHP_EOL, $dow, $weekday->format('l'), $weekday->format('D')); }
Output for git.master, git.master_jit, rfc.property-hooks
0 = Sunday (Sun) 1 = Monday (Mon) 2 = Tuesday (Tue) 3 = Wednesday (Wed) 4 = Thursday (Thu) 5 = Friday (Fri) 6 = Saturday (Sat)

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