- PHP_ROUND_UP - Always round up.- PHP_ROUND_DOWN - Always round down.In accounting, it's often necessary to always round up, or down to a precision of thousandths.<?phpfunction round_up($number, $precision = 2){$fig = (int) str_pad('1', $precision, '0'); return (ceil($...
round函数提供了四种舍入模式供选择,分别是: PHP_ROUND_HALF_UP(默认值):四舍五入,若正好在中间,则取较大的那个整数。 PHP_ROUND_HALF_DOWN:四舍五入,若正好在中间,则取较小的那个整数。 PHP_ROUND_HALF_EVEN:四舍五入,若正好在中间,则取偶数。 PHP_ROUND_HALF_ODD:四舍五入,若正好在中间,则取奇数。
Note: The behavior ofround()forfloatscan be surprising. Noticeround(2.675, 2)gives2.67instead of the expected2.68. This is not a bug: it's a result of the fact that most decimal fractions can't be represented exactly as a float. If you're in a situation where this precision is needed...
<?php //Syntax floor(int|float $num): float The floor() function returns the value rounded up to the next lowest integer. The return value is still of type float as the value range of float is usually bigger than that of integer. Example: <?php echo floor(3.001); # Prints: 3 echo...
""); echo(round(1.5,0,PHP_ROUND_HALF_DOWN) . ""); echo(round(-1.5,0,PHP_ROUND_HALF_DOWN) . ""); echo(round(1.5,0,PHP_ROUND_HALF_EVEN) . ""); echo(round(-1.5,0,PHP_ROUND_HALF_EVEN) . ""); echo(round(1.5,0,PHP_ROUND_HALF_ODD) . ""); echo(round(-1.5,0,PHP_ROUN...
decimals: int, optional: Number of decimal places to round to (default: 0). If decimals are negative, it specifies the number of positions to the left of the decimal point. out: ndarray, optional: Alternative output array in which to place the result. It must have the same shape as ...
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Data Analysis:To round values in data analysis tasks to simplify results and improve readability. Syntax: random() PostgreSQL Version: 9.3 Pictorial presentation of PostgreSQL ROUND() function Example 1: PostgreSQL ROUND() function Code: SELECT ROUND(67.456) AS "Round"; ...