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<?php
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function caesarEncode($message, $key) {
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$from = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
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$to = substr($from, $key) . substr($from, 0, $key);
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return strtr($message, $from, $to);
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}
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echo caesarEncode('THE QUICK BROWN FOX JUMPED OVER THE LAZY DOG', 12), PHP_EOL;
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