如图 有一个数组 需要去重 重组数组的格式 在线讨论
回复讨论(解决方案)
贴出由 var_export 输出的示例数组,没有讨论的基础是讨论不起来的
其实很简单,你只要按聚类键聚类就可以了
贴出由 var_export 输出的示例数组,没有讨论的基础是讨论不起来的
其实很简单,你只要按聚类键聚类就可以了
这是现在的得到数组
希望 得到下面的格式
请问版主 这种怎么去 格式化
为什么要截图呢?难道要我一个个的去打字?
有什么要求?如果只要单纯实现的话,不可以用循环吗?
<meta charset="utf-8"><?php $arra = array( 0 => array( 'id' => 0, 'send_mobile'=> '13267310236', 'c_content'=>'天气很热注意防暑' ), 1 => array( 'id' => 1, 'send_mobile'=> '13267310285', 'c_content'=>'天气很热注意防暑' ), 2 => array( 'id' => 2, 'send_mobile'=> '13267310126', 'c_content'=>'天气很热注意防暑' ), 3 => array( 'id' => 3, 'send_mobile'=> '13267310166', 'c_content'=>'天气防暑' ) ); $arrb = array(); foreach ($arra as $v){ $b = $v['c_content']; if(isset($arrb[$b])) $arrb[$b]['send_mobile'] .= ','.$v['send_mobile']; $arrb[$b] = isset($arrb[$b])?$arrb[$b]:$v; } $arrb = array_values($arrb); print_r($arrb);?>
看你那个是用c_id做区分的吧,那就直接用cid做key, $arr[$cid][] = $val
提示你一下 中文可以作为数组键
foreach ($arra as $k=>$v) { $res [$v[c_content]] = $v; }
一句话ok
新建个数组b,遍历原数组a,如果遍历项中的c_content没有作为键名出现在b中,则插入一个b[c_content];否则把遍历到的send_mobile加进去,最后再把b数组整个重新键值排序一下。
<meta charset="utf-8"><?php $arra = array( 0 => array( 'id' => 0, 'send_mobile'=> '13267310236', 'c_content'=>'天气很热注意防暑' ), 1 => array( 'id' => 1, 'send_mobile'=> '13267310285', 'c_content'=>'天气很热注意防暑' ), 2 => array( 'id' => 2, 'send_mobile'=> '13267310126', 'c_content'=>'天气很热注意防暑' ), 3 => array( 'id' => 3, 'send_mobile'=> '13267310166', 'c_content'=>'天气防暑' ) ); $arrb = array(); foreach ($arra as $v){ $b = $v['c_content']; if(isset($arrb[$b])) $arrb[$b]['send_mobile'] .= ','.$v['send_mobile']; $arrb[$b] = isset($arrb[$b])?$arrb[$b]:$v; } $arrb = array_values($arrb); print_r($arrb);?>
谢谢 这个问题已经解决

TooptimizePHPcodeforreducedmemoryusageandexecutiontime,followthesesteps:1)Usereferencesinsteadofcopyinglargedatastructurestoreducememoryconsumption.2)LeveragePHP'sbuilt-infunctionslikearray_mapforfasterexecution.3)Implementcachingmechanisms,suchasAPC

PHPisusedforsendingemailsduetoitsintegrationwithservermailservicesandexternalSMTPproviders,automatingnotificationsandmarketingcampaigns.1)SetupyourPHPenvironmentwithawebserverandPHP,ensuringthemailfunctionisenabled.2)UseabasicscriptwithPHP'smailfunct

The best way to send emails is to use the PHPMailer library. 1) Using the mail() function is simple but unreliable, which may cause emails to enter spam or cannot be delivered. 2) PHPMailer provides better control and reliability, and supports HTML mail, attachments and SMTP authentication. 3) Make sure SMTP settings are configured correctly and encryption (such as STARTTLS or SSL/TLS) is used to enhance security. 4) For large amounts of emails, consider using a mail queue system to optimize performance.

CustomheadersandadvancedfeaturesinPHPemailenhancefunctionalityandreliability.1)Customheadersaddmetadatafortrackingandcategorization.2)HTMLemailsallowformattingandinteractivity.3)AttachmentscanbesentusinglibrarieslikePHPMailer.4)SMTPauthenticationimpr

Sending mail using PHP and SMTP can be achieved through the PHPMailer library. 1) Install and configure PHPMailer, 2) Set SMTP server details, 3) Define the email content, 4) Send emails and handle errors. Use this method to ensure the reliability and security of emails.

ThebestapproachforsendingemailsinPHPisusingthePHPMailerlibraryduetoitsreliability,featurerichness,andeaseofuse.PHPMailersupportsSMTP,providesdetailederrorhandling,allowssendingHTMLandplaintextemails,supportsattachments,andenhancessecurity.Foroptimalu

The reason for using Dependency Injection (DI) is that it promotes loose coupling, testability, and maintainability of the code. 1) Use constructor to inject dependencies, 2) Avoid using service locators, 3) Use dependency injection containers to manage dependencies, 4) Improve testability through injecting dependencies, 5) Avoid over-injection dependencies, 6) Consider the impact of DI on performance.

PHPperformancetuningiscrucialbecauseitenhancesspeedandefficiency,whicharevitalforwebapplications.1)CachingwithAPCureducesdatabaseloadandimprovesresponsetimes.2)Optimizingdatabasequeriesbyselectingnecessarycolumnsandusingindexingspeedsupdataretrieval.


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

MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

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.

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software
