Question

How to rounds a float in PHP

Answer 1

echo "1) " . round(5.3) . "
"; // 5
echo "2) " . round(5.4) . "
"; // 5
echo "3) " . round(5.5) . "
"; // 6
echo "4) " . round(5.6) . "
"; // 6
echo "5) " . round(5.7) . "
"; // 6
echo "6) " . round(5.7, 0) . "
"; // 6
echo "7) " . round(5.7, 1) . "
"; // 5.7
echo "8) " . round(5.7, 3) . "
"; // 5.7
echo "9) " . round(131.95483, 2) . "
";  // 131.95
echo "10) " . round(131.95583, 2) . "
";  // 131.96
echo "11) " . round(15634578, -3) . "
"; // 15635000
echo "12) " . round(5.035, 2) . "
";    // 5.04
echo "13) " . round(5.045, 2) . "
";    // 5.05
echo "14) " . round(5.055, 2) . "
";    // 5.06
echo "15) " . round(5.065, 2) . "
";    // 5.07

    
/*
run:

1) 5
2) 5
3) 6
4) 6
5) 6
6) 6
7) 5.7
8) 5.7
9) 131.95
10) 131.96
11) 15635000
12) 5.04
13) 5.05
14) 5.06
15) 5.07

*/

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Answer 2

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

*/

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