数组针对某项的求和问题-PHP Tutorial-php.cn

Table of Contents

回复讨论(解决方案)

Home

Backend Development

PHP Tutorial

数组针对某项的求和问题

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB

Jun 23, 2016 pm 02:20 PM

已知数组a：

array (  0 =>   array (    'stock_no' => 'SU13080800340',    'adress' => 'B',    'arr_time' => '2013-08-14 09:00:00',    'c_type' => 'P32E',    'cust_no' => '310F61VA5A',    'mount_total' => '1',    'total' => '16',    'c1_time' => '2013-08-10 15:00:00',    'packageno' => 'CVT121015001',  ),  1 =>   array (    'stock_no' => 'SU13080800340',    'adress' => 'B',    'arr_time' => '2013-08-14 09:00:00',    'c_type' => 'P32E',    'cust_no' => '310F61VA5B',    'mount_total' => '2',    'total' => '32',    'c1_time' => '2013-08-10 15:00:00',    'packageno' => 'CVT121015002',  ),  2 =>   array (    'stock_no' => 'SU13080800340',    'adress' => 'B',    'arr_time' => '2013-08-14 09:00:00',    'c_type' => 'P32E',    'cust_no' => '310F61VA5B',    'mount_total' => '2',    'total' => '32',    'c1_time' => '2013-08-10 15:00:00',    'packageno' => 'CVT121226001',  ),)

Copy after login

如何分别求得数组中的项cust_no对应的packageno的结果以及stock_no对应mount_total和total项求和的结果？
假设cust_no为310F61VA5A时，对应的packageno为CVT121225001。
cust_no为310F61VA5B时，对应的packageno为CVT121225002，CVT121226001。

stock_no为SU13080800340时，求得的mount_total结果为3（1+2），total结果为48（16+32）。

如何达到这样的效果？

回复讨论(解决方案)

	$a = array (   0 =>    array (     'stock_no' => 'SU13080800340',     'adress' => 'B',     'arr_time' => '2013-08-14 09:00:00',     'c_type' => 'P32E',     'cust_no' => '310F61VA5A',     'mount_total' => '1',     'total' => '16',     'c1_time' => '2013-08-10 15:00:00',     'packageno' => 'CVT121015001',   ),   1 =>    array (     'stock_no' => 'SU13080800340',     'adress' => 'B',     'arr_time' => '2013-08-14 09:00:00',     'c_type' => 'P32E',     'cust_no' => '310F61VA5B',     'mount_total' => '2',     'total' => '32',     'c1_time' => '2013-08-10 15:00:00',     'packageno' => 'CVT121015002',   ),   2 =>    array (     'stock_no' => 'SU13080800340',     'adress' => 'B',     'arr_time' => '2013-08-14 09:00:00',     'c_type' => 'P32E',     'cust_no' => '310F61VA5B',     'mount_total' => '2',     'total' => '32',     'c1_time' => '2013-08-10 15:00:00',     'packageno' => 'CVT121226001',   ), );function foo1($cust_no,$a=array()){	foreach($a as $each){		if($each['cust_no'] == $cust_no){			$res[] = $each['packageno'];		}	}	if($res){		return implode(",",$res);	}else{		return false;	}}function foo2($stock_no,$a=array()){	foreach($a as $each){		if($each['stock_no'] == $stock_no){			$mount_total[] = $each['mount_total'];			$total[] = $each['total'];		}	}	$mount_total = array_unique($mount_total);		//去重复	$total = array_unique($total);	$res['mount_total'] = array_sum($mount_total);	$res['total'] = array_sum($total);	return $res;}var_export(foo1("310F61VA5B",$a));var_export(foo2("SU13080800340",$a));

Copy after login

'CVT121015002,CVT121226001'
array ( 'mount_total' => 3, 'total' => 48, )

$ar=array (  0 =>   array (    'stock_no' => 'SU13080800340',    'adress' => 'B',    'arr_time' => '2013-08-14 09:00:00',    'c_type' => 'P32E',    'cust_no' => '310F61VA5A',    'mount_total' => '1',    'total' => '16',    'c1_time' => '2013-08-10 15:00:00',    'packageno' => 'CVT121015001',  ),  1 =>   array (    'stock_no' => 'SU13080800340',    'adress' => 'B',    'arr_time' => '2013-08-14 09:00:00',    'c_type' => 'P32E',    'cust_no' => '310F61VA5B',    'mount_total' => '2',    'total' => '32',    'c1_time' => '2013-08-10 15:00:00',    'packageno' => 'CVT121015002',  ),  2 =>   array (    'stock_no' => 'SU13080800340',    'adress' => 'B',    'arr_time' => '2013-08-14 09:00:00',    'c_type' => 'P32E',    'cust_no' => '310F61VA5B',    'mount_total' => '2',    'total' => '32',    'c1_time' => '2013-08-10 15:00:00',    'packageno' => 'CVT121226001',  ),);foreach($ar as $v){    $a[$v['cust_no']][]=$v['packageno'];	$b[$v['stock_no']][]=$v['mount_total'];	$c[$v['stock_no']][]=$v['total'];}print_r($a);print_r($b);print_r($c);

Copy after login

Array
(
[310F61VA5A] => Array
(
[0] => CVT121015001
)

[310F61VA5B] => Array
(
[0] => CVT121015002
[1] => CVT121226001
)

)
Array
(
[SU13080800340] => Array
(
[0] => 1
[1] => 2
[2] => 2
)

)
Array
(
[SU13080800340] => Array
(
[0] => 16
[1] => 32
[2] => 32
)

)

第一个问题循环数组判断每一个cust_no字段的值为给定值的数组元素的packageno的值加起来就是你要的结果.

第二个问题循环数组判断每一个stock_no字段的值为给定值的数组元素的两个要求字段的值存入数组,循环结束后分别去除重复的然后相加

$a = array (  0 =>   array (    'stock_no' => 'SU13080800340',    'adress' => 'B',    'arr_time' => '2013-08-14 09:00:00',    'c_type' => 'P32E',    'cust_no' => '310F61VA5A',    'mount_total' => '1',    'total' => '16',    'c1_time' => '2013-08-10 15:00:00',    'packageno' => 'CVT121015001',  ),  1 =>   array (    'stock_no' => 'SU13080800340',    'adress' => 'B',    'arr_time' => '2013-08-14 09:00:00',    'c_type' => 'P32E',    'cust_no' => '310F61VA5B',    'mount_total' => '2',    'total' => '32',    'c1_time' => '2013-08-10 15:00:00',    'packageno' => 'CVT121015002',  ),  2 =>   array (    'stock_no' => 'SU13080800340',    'adress' => 'B',    'arr_time' => '2013-08-14 09:00:00',    'c_type' => 'P32E',    'cust_no' => '310F61VA5B',    'mount_total' => '2',    'total' => '32',    'c1_time' => '2013-08-10 15:00:00',    'packageno' => 'CVT121226001',  ),);$res = array();foreach($a as $item) {  if(! isset($res[$item['stock_no']][$item['cust_no']])) {    $res[$item['stock_no']][$item['cust_no']] = $item;  }else {    $res[$item['stock_no']][$item['cust_no']]['mount_total'] += $item['mount_total'];    $res[$item['stock_no']][$item['cust_no']]['total'] += $item['total'];    $res[$item['stock_no']][$item['cust_no']]['packageno'] .= ',' .$item['packageno'];  }}foreach($res as &$item) $item = array_values($item);print_r($res);

Copy after login

Array
(
[SU13080800340] => Array
(
[0] => Array
(
[stock_no] => SU13080800340
[adress] => B
[arr_time] => 2013-08-14 09:00:00
[c_type] => P32E
[cust_no] => 310F61VA5A
[mount_total] => 1
[total] => 16
[c1_time] => 2013-08-10 15:00:00
[packageno] => CVT121015001
)

[1] => Array
(
[stock_no] => SU13080800340
[adress] => B
[arr_time] => 2013-08-14 09:00:00
[c_type] => P32E
[cust_no] => 310F61VA5B
[mount_total] => 4
[total] => 64
[c1_time] => 2013-08-10 15:00:00
[packageno] => CVT121015002,CVT121226001
)

)

)

[code=php]
Array
(
[310F61VA5A] => Array
(
[0] => CVT121015001
)

[310F61VA5B] => Array
(
[0] => CVT121015002
[1] => CVT121226001
)

)
Array
(
[SU13080800340] => Array
(
[0] => 1
[1] => 2
[2] => 2
)

)
Array
(
[SU13080800340] => Array
(
[0] => 16
[1] => 32
[2] => 32
)

)

第一项OK，但是mount_total和total的求和结果不对，我要的是stock_no为SU13080800340时，求得的mount_total结果为3（1+2），total结果为48（16+32）。

$res = array();foreach($a as $item) {  if(! isset($res[$item['stock_no']][$item['cust_no']])) {    $res[$item['stock_no']][$item['cust_no']] = $item;  }else {    $res[$item['stock_no']][$item['cust_no']]['mount_total'] += $item['mount_total'];    $res[$item['stock_no']][$item['cust_no']]['total'] += $item['total'];    $res[$item['stock_no']][$item['cust_no']]['packageno'] .= ',' .$item['packageno'];  }}foreach($res as &$item) $item = array_values($item);print_r($res);

Copy after login

我想要得到的stockno的求和结果是mount_total为3（2+1），total结果为48（16+32）。

楼主这种问题  应该算是比较基础的  我有点好奇为什么会纠结于
Array
        (
            [0] => 16
            [1] => 32
            [2] => 32
        )
这种数组的加和? 你的需求应该是去了重复求和....  一个PHP函数的事情...

你的数组中三个stock_no的值不是一样的吗，都为 SU13080800340 吧，难道我眼花了？

那是你的数据给错了
    'cust_no' => '310F61VA5A',
    'mount_total' => '1',
    'total' => '16',

    'cust_no' => '310F61VA5B',
    'mount_total' => '2',
    'total' => '32',

    'cust_no' => '310F61VA5B',
    'mount_total' => '2',
    'total' => '32',

你的数组中三个stock_no的值不是一样的吗，都为 SU13080800340 吧，难道我眼花了？
那怎么去重复求和呢？

Statement of this Website

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

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

Roblox: Grow A Garden - Complete Mutation Guide

3 weeks ago By DDD

How to fix KB5055612 fails to install in Windows 10?

3 weeks ago By DDD

Roblox: Bubble Gum Simulator Infinity - How To Get And Use Royal Keys

3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Nordhold: Fusion System, Explained

3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Mandragora: Whispers Of The Witch Tree - How To Unlock The Grappling Hook

3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Hot Topics

Java Tutorial

1667

CakePHP Tutorial

1426

Laravel Tutorial

1328

PHP Tutorial

1273

C# Tutorial

1255

Related knowledge

Explain secure password hashing in PHP (e.g., password_hash, password_verify). Why not use MD5 or SHA1? Apr 17, 2025 am 12:06 AM

In PHP, password_hash and password_verify functions should be used to implement secure password hashing, and MD5 or SHA1 should not be used. 1) password_hash generates a hash containing salt values to enhance security. 2) Password_verify verify password and ensure security by comparing hash values. 3) MD5 and SHA1 are vulnerable and lack salt values, and are not suitable for modern password security.

PHP: A Key Language for Web Development Apr 13, 2025 am 12:08 AM

PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7

PHP and Python: Comparing Two Popular Programming Languages Apr 14, 2025 am 12:13 AM

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

PHP in Action: Real-World Examples and Applications Apr 14, 2025 am 12:19 AM

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.

How does PHP type hinting work, including scalar types, return types, union types, and nullable types? Apr 17, 2025 am 12:25 AM

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.

The Enduring Relevance of PHP: Is It Still Alive? Apr 14, 2025 am 12:12 AM

PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.

PHP vs. Other Languages: A Comparison Apr 13, 2025 am 12:19 AM

PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.

PHP and Python: Different Paradigms Explained Apr 18, 2025 am 12:26 AM

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

See all articles