<?php
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namespace app\common\library;
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/**
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* 工具类
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*/
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class helper
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{
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/**
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* 获取数组中指定的列
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*/
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public static function getArrayColumn($source, $column)
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{
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$columnArr = [];
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foreach ($source as $item) {
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$columnArr[] = $item[$column];
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}
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return $columnArr;
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}
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/**
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* 获取数组中指定的列
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*/
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public static function getArrayColumns($source, $columns)
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{
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$columnArr = [];
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foreach ($source as $item) {
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$temp = [];
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foreach ($columns as $index) {
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$temp[$index] = $item[$index];
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}
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$columnArr[] = $temp;
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}
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return $columnArr;
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}
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/**
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* 获取数组中指定的列中的id
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*/
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public static function getArrayColumnIds($source)
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{
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$orderId_arr = [];
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foreach ($source as $item){
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array_push($orderId_arr, $item);
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}
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return $orderId_arr;
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}
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/**
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* 把二维数组中某列设置为key返回
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*/
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public static function arrayColumn2Key($source, $index)
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{
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$data = [];
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foreach ($source as $item) {
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$data[$item[$index]] = $item;
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}
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return $data;
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}
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public static function number2($number, $isMinimum = false, $minimum = 0)
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{
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$isMinimum && $number = max($minimum, $number);
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return sprintf('%.2f', $number);
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}
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public static function getArrayItemByColumn($array, $column, $value)
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{
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foreach ($array as $item) {
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if ($item[$column] == $value) {
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return $item;
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}
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}
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return false;
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}
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public static function getArrayColumnSum($array, $column)
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{
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$sum = 0;
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foreach ($array as $item) {
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$sum += $item[$column] * 100;
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}
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return $sum / 100;
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}
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public static function setDataAttribute(&$source, $defaultData, $isArray = false)
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{
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if (!$isArray) $dataSource = [&$source]; else $dataSource = &$source;
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foreach ($dataSource as &$item) {
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foreach ($defaultData as $key => $value) {
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$item[$key] = $value;
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}
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}
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return $source;
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}
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// 减法
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public static function bcsub($leftOperand, $rightOperand, $scale = 2)
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{
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return \bcsub($leftOperand, $rightOperand, $scale);
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}
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// 加法
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public static function bcadd($leftOperand, $rightOperand, $scale = 2)
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{
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return \bcadd($leftOperand, $rightOperand, $scale);
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}
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// 乘法
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public static function bcmul($leftOperand, $rightOperand, $scale = 2)
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{
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return \bcmul($leftOperand, $rightOperand, $scale);
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}
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// 除法
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public static function bcdiv($leftOperand, $rightOperand, $scale = 2)
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{
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return \bcdiv($leftOperand, $rightOperand, $scale);
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}
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// 比较两个高精度数字大小，返回0：两数相等，返回1：左数大于右数，返回-1：左数小于右数
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public static function bccomp($leftOperand, $rightOperand, $scale = 2)
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{
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return \bccomp($leftOperand, $rightOperand, $scale);
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}
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// 比较两个高精度数字是否相等
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public static function bcequal($leftOperand, $rightOperand, $scale = 2)
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{
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return self::bccomp($leftOperand, $rightOperand, $scale) === 0;
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}
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/**
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* 数组转义为json
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*/
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public static function jsonEncode($data)
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{
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return json_encode($data, JSON_UNESCAPED_UNICODE);
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}
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/**
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* json转义为数组
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*/
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public static function jsonDecode($json)
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{
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return json_decode($json, true);
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}
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}
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