function.php

<?php
/*
 * @Descripttion: 公用函数集
 * @Author: Mashiro_05
 * @version: 
 * @Date: 2021-04-05 19:50:47
 * @LastEditors: Mashiro_05
 * @LastEditTime: 2021-05-25 16:52:08
 */
global $openid, $zc, $startdate;
$startdate = date_create("2022-8-29");/////////////////第一周开始时间，每学期都要改//////////////////////


function del_object($arr, $week)
{////获取到的都是周课表，需要删除非当天的数据

    switch ($week) {
        case 0:
            $week = '7';
            break;
        case 1:
            $week = '1';
            break;
        case 2:
            $week = '2';
            break;
        case 3:
            $week = '3';
            break;
        case 4:
            $week = '4';
            break;
        case 5:
            $week = '5';
            break;
        case 6:
            $week = '6';
            break;
        default:
            echo '周次错误';
            break;
    }

    /*
    foreach ($arr['classtime'] as $key => $value) {//
        if(strpos($value["week"],$week)=== false){

            unset($arr['classtime'][$key]);
        }
    }
    return($arr);
    */

    $new_array = array();
    foreach ($arr['classtime'] as $key => $value) {
        if (strpos($value["week"], $week) === 0)
            $new_array[] = $arr['classtime'][$key];
    }
    $arr['classtime'] = $new_array;
    return ($arr);

}

function get_week_num($date = null)
{//取当前周次 $date=null 表示参数可缺省
    global $startdate;
    if ($date !== null) {
        $week_num = date_diff($startdate, date_create($date))->format('%a');
    } else {
        $week_num = date_diff($startdate, date_create(date("Y-m-d")))->format('%a');
    }
    $week_num = intval($week_num / 7) + 1;
    if ($week_num < 10) $week_num = "0" . $week_num;
    return $week_num;
}

function get_date_array($zc, $xq)
{//取得某一周的星期几的月份和日期
    global $startdate;
    $starttime = date_format($startdate, "Y-m-d");
    $time = strtotime($starttime) + 604800 * ($zc - 1) + 86400 * ($xq - 1);
    $month = date('n', $time);
    $day = date('j', $time);
    //$array=['month'=>$month,'day'=>$day];
    //return $array;
    return ['month' => $month, 'day' => $day];
}


function getTabledate($openid, $info)
{//table格式化为二维数组
    $info = str_replace(array("--", "<br/>", "\t", "\r\n", "\r", "\n"), "", $info);
    //preg_match_all("~<table[^>]+[^>]*>(.*?)<\/table>~", $info, $content);//原版代码,不太适用于本校课表
    preg_match_all("~</thead>([\s\S]*)</table>~", $info, $content);
    $content = $content[1][0];
    $content = preg_replace("'<tr[^>]*?>'si", "", $content);    //替换前面的tr为空
    $content = preg_replace("'<td[^>]*?>'si", "", $content);    //替换前面的td为空
    $content = str_replace("</tr>", "{tr}", $content);
    $content = str_replace("</td>", "{td}", $content);
    $content = preg_replace("'<[/!]*?[^<>]*?>'si", "", $content); //替换其他多余的标签
    $content = preg_replace("'([rn])[s]+'", "", $content);      //替换换行符和空格
    $content = str_replace(" ", "", $content);
    $content = explode('{tr}', $content);                            //tr分割
    array_pop($content);    //最后一个元素为空
    $res = [];
    $keys = ["course", "teacher", "class_name", "zc", "week", "place", "start_class", "end_class", "start_time", "end_time"];
    foreach ($content as $key => $tr) {        //遍历每一行
        $line = explode('{td}', $tr);  //td分割
        array_pop($line);   //最后一个元素是由原来的</td>分割的，为空值，删掉，array_pop表示删掉数组最后一个值

        if (sizeof($line) > 1) { //不是空行

            $array_out = array();    //将处理后的数据替换原数据   替换课程开始与结束时间
            preg_match("~\[(.*?)-(.*?)\]~", $line[4], $array_out);
            $start_class = $array_out[1];
            $end_class = $array_out[2];
            $start_time = get_start_time($array_out[1]);  //php正则匹配0为完整匹配，1为第一个子匹配，2为第二个子匹配
            $end_time = get_end_time($array_out[2]);
            array_push($line, $start_class, $end_class, $start_time, $end_time);


            $array_out = array();//将处理后的数据替换原数据   替换课名
            preg_match("~(?<=\]).*~", $line[0], $array_out);
            $line[0] = $array_out[0];

            $array_out = array();//将处理后的数据替换原数据   替换week

            $line[4] = wday_tonum($line[4]);

            if (empty($line[5])) {
                $line[5] = "操场";
            } else {
                if (substr($line[5], 0, 9) === "行知楼")//一个中文占两个字节，对于一个UTF-8的中文字符，会把它当做3个字节来处理   //将处理后的数据替换原数据   替换地点
                {
                    $place = substr($line[5], 0, 13);
                } else {
                    $array_out = array();
                    preg_match("~[a-zA-Z][0-9]{3}~", $line[5], $array_out);
                    $place = $array_out[0];
                }
                $line[5] = $place;
            }


            $res[] = array_combine($keys, $line);//数组添加元素，并赋予键名


        }
    }
    $array3['openid'] = $openid;
    $array3['start_time'] = array('8:00', '8:50', '9:40', '10:30', '11:20', '14:00', '14:50', '15:40', '16:30', '17:20', '19:00', '19:50');
    $array3['end_time'] = array('8:40', '9:30', '10:20', '11:10', '12:00', '14:40', '15:30', '16:20', '17:10', '18:00', '19:40', '20:30');
    $array3['classtime'] = $res;////封装三维数组

    return $array3;

}


function get_start_time($str)
{
    $start_time = array('null', '8:00', '8:50', '9:40', '10:30', '11:20', '14:00', '14:50', '15:40', '16:30', '17:20', '19:00', '19:50');
    switch ($str) {
        case 1:
            $time = $start_time[1];
            break;
        case 2:
            $time = $start_time[2];
            break;
        case 3:
            $time = $start_time[3];
            break;
        case 4:
            $time = $start_time[4];
            break;
        case 5:
            $time = $start_time[5];
            break;
        case 6:
            $time = $start_time[6];
            break;
        case 7:
            $time = $start_time[7];
            break;
        case 8:
            $time = $start_time[8];
            break;
        case 9:
            $time = $start_time[9];
            break;
        case 10:
            $time = $start_time[10];
            break;
        case 11:
            $time = $start_time[11];
            break;
        case 12:
            $time = $start_time[12];
            break;
        default:
            $time = "null";
            break;
    }
    return $time;
}

function get_end_time($str)
{
    $end_time = array('null', '8:40', '9:30', '10:20', '11:10', '12:00', '14:40', '15:30', '16:20', '17:10', '18:00', '19:40', '20:30');
    switch ($str) {
        case 1:
            $time = $end_time[1];
            break;
        case 2:
            $time = $end_time[2];
            break;
        case 3:
            $time = $end_time[3];
            break;
        case 4:
            $time = $end_time[4];
            break;
        case 5:
            $time = $end_time[5];
            break;
        case 6:
            $time = $end_time[6];
            break;
        case 7:
            $time = $end_time[7];
            break;
        case 8:
            $time = $end_time[8];
            break;
        case 9:
            $time = $end_time[9];
            break;
        case 10:
            $time = $end_time[10];
            break;
        case 11:
            $time = $end_time[11];
            break;
        case 12:
            $time = $end_time[12];
            break;
        default:
            $time = "null";
            break;
    }
    return $time;
}

function wday_tonum($week)
{
    $week = substr($week, 0, 3);
    switch ($week) {
        case '一':
            return 1;
        case '二':
            return 2;
        case '三':
            return 3;
        case '四':
            return 4;
        case '五':
            return 5;
        case '六':
            return 6;
        case '日':
            return 7;
    }

}


?>