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    <p><strong>UPDATE: See my improved answer here: <a href="https://stackoverflow.com/questions/1642614/how-to-ceil-floor-and-round-bcmath-numbers/1653826#1653826">How to ceil, floor and round bcmath numbers?</a>.</strong></p> <hr> <p>These functions seem to make more sense, at least to me:</p> <pre><code>function bcceil($number) { if ($number[0] != '-') { return bcadd($number, 1, 0); } return bcsub($number, 0, 0); } function bcfloor($number) { if ($number[0] != '-') { return bcadd($number, 0, 0); } return bcsub($number, 1, 0); } function bcround($number, $precision = 0) { if ($number[0] != '-') { return bcadd($number, '0.' . str_repeat('0', $precision) . '5', $precision); } return bcsub($number, '0.' . str_repeat('0', $precision) . '5', $precision); } </code></pre> <p><strong>They support negative numbers and the precision argument for the bcround() function.</strong></p> <p>Some tests:</p> <pre><code>assert(bcceil('4.3') == ceil('4.3')); // true assert(bcceil('9.999') == ceil('9.999')); // true assert(bcceil('-3.14') == ceil('-3.14')); // true assert(bcfloor('4.3') == floor('4.3')); // true assert(bcfloor('9.999') == floor('9.999')); // true assert(bcfloor('-3.14') == floor('-3.14')); // true assert(bcround('3.4', 0) == number_format('3.4', 0)); // true assert(bcround('3.5', 0) == number_format('3.5', 0)); // true assert(bcround('3.6', 0) == number_format('3.6', 0)); // true assert(bcround('1.95583', 2) == number_format('1.95583', 2)); // true assert(bcround('5.045', 2) == number_format('5.045', 2)); // true assert(bcround('5.055', 2) == number_format('5.055', 2)); // true assert(bcround('9.999', 2) == number_format('9.999', 2)); // true </code></pre>
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    1. POHow to round/ceil/floor a bcmath number in PHP?
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    1. COWon't work with integers. Good realisation of these functions here: http://stackoverflow.com/a/1653826/541961 Alix, you can edit your post to link to the newer one.
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    2. CO@Dmitriy: Done. Thanks.
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