php查询最接近一个数的方法：1、创建一个php示例文件；2、通过“function nextrelatednumber($number, $range){...}”方法获取指定范围内最接近的数即可。
本教程操作环境：windows7系统、php8.1版、dell g3电脑。
php怎么查询最接近一个数？
php获取指定范围内最接近数的方法
具体实现方法如下：
// returns the next higher or lower numberfunction nextrelatednumber($number, $range){ $r = $number % $range; $f = $number - $r; $b = round($r / $range, 0); return ($b == 1) ? $f + $range : $f; }// returns the next higher numberfunction nexthighernumber($number, $range){ $r = $number % $range; $f = $number - $r; $b = ceil($r / $range); return ($b == 1) ? $f + $range : $f; }// returns the next lower numberfunction nextlowernumber($number, $range){ $r = $number % $range; $f = $number - $r; $b = floor($r / $range); return ($b == 1) ? $f + $range : $f; }// returns the next related number from an arrayfunction nextnumberarray($number, $numberrangearray){ $w = 0; $c = -1; $abstand = 0; $l = count($numberrangearray); for($pos=0; $pos < $l; $pos++){ $n = $numberrangearray[$pos]; $abstand = ($n < $number) ? $number - $n : $n - $number; if ($c == -1){ $c = $abstand; continue; } else if ($abstand < $c){ $c = $abstand; $w = $pos; } } return $numberrangearray[$w];} // examples// --------// 0 10 20 30 40 50 ...print 'nextrelatednumber: ';print nextrelatednumber(44, 10) . "\n";// returns --> 40// 0 20 40 60 80 100 ...print 'nexthighernumber: ';print nexthighernumber(41, 20) . "\n";// returns --> 60// 0 5 10 15 20 25 30 35 ...print 'nextlowernumber: ';print nextlowernumber(57, 5) . "\n";// returns --> 55// example with arrayprint 'nextnumberarray: ';print nextnumberarray(45, array(3, 8, 19, 34, 56, 89)) . "\n";// returns --> 34// (45 is between 34 and 56 but 34 is the next)
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以上就是php怎么查询最接近一个数的详细内容。