<?php echo "\n",decbin(12),"\n"; echo is_numeric(decbin(12))? 'true' : 'false'; echo "\n",bindec(decbin(12) + 1),"\n"; echo "\n0x",dechex(12),"\n"; echo is_numeric(dechex(12))? 'true' : 'false'; echo "\n",hexdec(dechex(12) + 1),"\n";
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