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<?php $number = 12345; $nString = "$number"; $newNumber = ''; for($i = strlen($nString) - 1; $i >= 0; $i--) { $newNumber .= $nString[$i]; } var_dump($newNumber);
Output for 7.1.0 - 7.1.33, 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 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
string(5) "54321"

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