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How to output what day of the week yesterday was in php

藏色散人
Release: 2023-03-13 12:02:02
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How to output yesterday's day of the week in php: 1. Create a PHP sample file; 2. Create a getWeek method; 3. Output yesterday through "getWeek(strtotime('-1 days'));" Just the day of the week.

How to output what day of the week yesterday was in php

The operating environment of this article: windows7 system, PHP7.1 version, DELL G3 computer

How does php output what day of the week yesterday was?

php How to output the day of the week yesterday, today, and tomorrow

<?php
//php判断某一天是星期几的方法
function getWeek($unixTime=&#39;&#39;){
    $unixTime=is_numeric($unixTime)?$unixTime:time();
    $weekarray=array(&#39;日&#39;,&#39;一&#39;,&#39;二&#39;,&#39;三&#39;,&#39;四&#39;,&#39;五&#39;,&#39;六&#39;);
    return &#39;星期&#39;.$weekarray[date(&#39;w&#39;,$unixTime)];
}
//php输出昨天是星期几
echo getWeek(strtotime(&#39;-1 days&#39;));
//php输出今天天是星期几
echo getWeek();
//php输出明天是星期几
echo getWeek(strtotime(&#39;+1 days&#39;));
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