echo "1) " . round(5.5, 0, PHP_ROUND_HALF_UP) . "
"; // 6
echo "2) " . round(5.5, 0, PHP_ROUND_HALF_DOWN) . "
"; // 5
echo "3) " . round(5.5, 0, PHP_ROUND_HALF_EVEN) . "
"; // 6
echo "4) " . round(5.5, 0, PHP_ROUND_HALF_ODD) . "
"; // 5
echo "
";
echo "5) " . round(6.5, 0, PHP_ROUND_HALF_UP) . "
"; // 7
echo "6) " . round(6.5, 0, PHP_ROUND_HALF_DOWN) . "
"; // 6
echo "7) " . round(6.5, 0, PHP_ROUND_HALF_EVEN) . "
"; // 6
echo "8) " . round(6.5, 0, PHP_ROUND_HALF_ODD) . "
"; // 7
/*
run:
1) 6
2) 5
3) 6
4) 5
5) 7
6) 6
7) 6
8) 7
*/