The PHP applet for sending emails is very simple, but there are some things you need to pay attention to. First enter the code:
<?php $to = "gonnsai@163.com"; $user = "Gonn"; $date = date("Y年m月d日"); $headers = 'MIME-Version: 1.0' . "rn"; $headers .= 'Content-type: text/html; charset=utf-8' . "rn"; $headers .= "To: $to rn"; $headers .= "Cc: 252211974@qq.com rn"; $headers .= 'From: gonnsai@163.com' . "rn"; $subject = "珠海生活圈"; $subject = "=?UTF-8?B?".base64_encode($subject)."?="; $content = '亲爱的'."$user".':'.'<br />'; $content .= '<br />'; $content .= "感谢您注册珠海生活圈,精彩的生活从珠海生活圈开始!".'<br />'; $content .= "在珠海生活圈,您可以:".'<br />'; $content .= "查询珠海的商家情况,方便您生活与娱乐。".'<br />'; $content .= "了解最近珠海举行的活动,让您的生活更加丰富。".'<br />'; $content .= "浏览新闻热点,扩展知识面。".'<br />'; $content .= '<br />'; $content .= "珠海生活圈 -- 为建成珠海最大的商家数据库而不断努力着。 ".'<a href="http://www.zhuhailife.net" target="_blank">www.zhuhailife.net</a>'.'<br />'; $content .= '<br />'; $content .= "珠海生活圈团队".'<br />'; $content .= "$date".'<br />'; $result = mail($to, $subject, $content, $headers); if($result) { echo '邮件发送成功!'; } ?>
There are a few things to note. If the above code does not include $subject = "=?UTF-8?B?".base64_encode($subject)."?=";, you will find that the title of the email is garbled, but the body of the email is correct. The email header needs to first use the function base64_encode(), which uses MIME base64 to encode the data. Add the encoding type before the title string, for example: =?UTF-8?B?.
Also set the email type to $headers = 'MIME-Version: 1.0' . "rn";.
Excerpt from wiki: Multipurpose Internet Mail Extensions (MIME, Multipurpose Internet Mail Extensions) is an Internet standard that extends the email standard to support multiple formats of email such as non-ASCII characters, binary format attachments, etc. information. This standard is defined in RFCs such as RFC 2045, RFC 2046, RFC 2047, RFC 2048, and RFC 2049. RFC 2822, transformed from RFC 822, stipulates that the email standard does not allow the use of characters outside the 7-bit ASCII character set in email messages. Because of this, some non-English character messages and non-text messages such as binary files, images, sounds, etc. cannot be transmitted in emails. MIME specifies symbolic methods for representing a wide variety of data types. In addition, the MIME framework is also used in the HTTP protocol used on the World Wide Web.
MIME is implemented by standardizing additional fields in the headers of email messages; these additional fields in the headers describe the content and organization of new message types.
$headers .= 'Content-type: text/html; charset=utf-8' . "rn"; When the type is set to html, the email body can use HTML tags.
Several common types:
- text/plain (plain text)
- text/html (HTML document)
- application/xhtml+xml (XHTML document)
- image/jpeg (JPEG image) [in PHP: image/pjpeg]
- image/gif (GIF image)
- image/png (PNG image) [In PHP: image/x-png]
- video/mpeg (MPEG animation)
- application/pdf (PDF document)
- application/msword (Microsoft Word file)
- application/octet-stream (arbitrary binary data)
- application/x-www-form-urlencoded (form submitted using HTTP POST method)
- multipart/form-data (same as above, but mainly used when uploading files when submitting forms)
In addition, subtypes that are not yet accepted as formal data types may use independent names starting with x- (e.g. application/x-gzip). Intrinsic names starting with vnd- can also be used (for example: application/vnd.ms-excel).
Parameter can be used to specify additional information. In more cases, it is the charset parameter used to specify text encoding methods such as text/plain and text/htm. MIME sets a default subtype based on type. When the client cannot determine the subtype of the message, the message is treated as the default subtype for processing. Text defaults to text/plain, Application defaults to application/octet-stream and Multipart is treated as multipart/mixed by default.

TomakePHPapplicationsfaster,followthesesteps:1)UseOpcodeCachinglikeOPcachetostoreprecompiledscriptbytecode.2)MinimizeDatabaseQueriesbyusingquerycachingandefficientindexing.3)LeveragePHP7 Featuresforbettercodeefficiency.4)ImplementCachingStrategiessuc

ToimprovePHPapplicationspeed,followthesesteps:1)EnableopcodecachingwithAPCutoreducescriptexecutiontime.2)ImplementdatabasequerycachingusingPDOtominimizedatabasehits.3)UseHTTP/2tomultiplexrequestsandreduceconnectionoverhead.4)Limitsessionusagebyclosin

Dependency injection (DI) significantly improves the testability of PHP code by explicitly transitive dependencies. 1) DI decoupling classes and specific implementations make testing and maintenance more flexible. 2) Among the three types, the constructor injects explicit expression dependencies to keep the state consistent. 3) Use DI containers to manage complex dependencies to improve code quality and development efficiency.

DatabasequeryoptimizationinPHPinvolvesseveralstrategiestoenhanceperformance.1)Selectonlynecessarycolumnstoreducedatatransfer.2)Useindexingtospeedupdataretrieval.3)Implementquerycachingtostoreresultsoffrequentqueries.4)Utilizepreparedstatementsforeffi

PHPisusedforsendingemailsduetoitsbuilt-inmail()functionandsupportivelibrarieslikePHPMailerandSwiftMailer.1)Usethemail()functionforbasicemails,butithaslimitations.2)EmployPHPMailerforadvancedfeatureslikeHTMLemailsandattachments.3)Improvedeliverability

PHP performance bottlenecks can be solved through the following steps: 1) Use Xdebug or Blackfire for performance analysis to find out the problem; 2) Optimize database queries and use caches, such as APCu; 3) Use efficient functions such as array_filter to optimize array operations; 4) Configure OPcache for bytecode cache; 5) Optimize the front-end, such as reducing HTTP requests and optimizing pictures; 6) Continuously monitor and optimize performance. Through these methods, the performance of PHP applications can be significantly improved.

DependencyInjection(DI)inPHPisadesignpatternthatmanagesandreducesclassdependencies,enhancingcodemodularity,testability,andmaintainability.Itallowspassingdependencieslikedatabaseconnectionstoclassesasparameters,facilitatingeasiertestingandscalability.

CachingimprovesPHPperformancebystoringresultsofcomputationsorqueriesforquickretrieval,reducingserverloadandenhancingresponsetimes.Effectivestrategiesinclude:1)Opcodecaching,whichstorescompiledPHPscriptsinmemorytoskipcompilation;2)DatacachingusingMemc


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

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.

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.

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