这篇文章主要介绍了PHP中数组的分组排序实例,对PHP数组分组排序的方法,需要的朋友可以参考下
PHP的数组,数组中的内容大致如下:
复制代码 代码如下:
$list = array(
array(2,3,5),
array(2,5,24),
array(3,8,6),
array(3,2,10),
array(4,7,20),
array(4,1,15),
array(6,4,10),
array(7,9,20),
);
为了方便表达,我把3列数字分别称为,ABC三列
需求:默认以A列排序为主,如果A列相同则以C列倒序排列相同的元素。B列其实没有参与排序,,但是在实际运用中有用,所以我也写出来了。
方法一:
复制代码 代码如下:
$a = $c = array();
foreach($list as $val){
$a[] = $val[0]; //a列
$c[] = $val[2]; //c列
}
//安装a列升序,然后安装b列降序 , 类似sql,orderby a asc,b desc
array_multisort($a,SORT_ASC , $c, SORT_DESC, $list);
print_r($list);
方法二:
复制代码 代码如下:
for($j=0;$j
if($list[$i][0] == $list[$i-1][0] && $list[$i][2] > $list[$i-1][2])
list($list[$i],$list[$i-1]) = array($list[$i-1],$list[$i]);
}
}

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

SublimeText3 Chinese version
Chinese version, very easy to use

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.

SublimeText3 English version
Recommended: Win version, supports code prompts!

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.
