init: 项目初始代码

extend/utils/WorkingDay.php

@@ -0,0 +1,68 @@
+<?php
+namespace utils;
+
+use think\facade\Db;
+
+/**
+ * 获取工作日
+ */
+class WorkingDay
+{
+    private $time = 0;
+    private $holidays = [];
+    public function __construct($time=0)
+    {
+        if (empty($time)) $this->time = time();
+    }
+
+    /**
+     * 获取当前年度的节假日
+     */
+    private function getHolidays()
+    {
+        $data = Db::name('holiday')->where('year', '=', date('Y'))->column('data');
+        if (empty($data)) {
+            $this->holidays = [];
+        }
+        $this->holidays = $data;
+    }
+
+    /**
+     * 获取工作日
+     */
+    public function getDates($adays)
+    {
+        // 获取节假日
+        $this->getHolidays();
+        
+        // 组装工作日
+        $ctime = $this->time;
+        $days = [];
+        $i = 1;
+        while($adays>0) {
+            $day = strtotime("+ $i day", $ctime);
+            $week = date('w', $day);
+            // 剔除周六周日与假日
+            if (0 != $week && 6 != $week && !in_array(date('Y-m-d', $day), $this->holidays)) {
+                $adays-=1;
+                $days[] = date('Y-m-d H:i:s', $day);
+            }
+            $i+=1;
+        }
+        return $days;
+    }
+
+    /**
+     * 获取几个工作日后日期
+     */
+    public function getDate($adays, $ctime = 0)
+    {
+        if (!empty($ctime)) {
+            $this->time = $ctime;
+        }
+        $days = $this->getDates($adays);
+        rsort($days);
+        return $days[0];
+    }
+}
+