How to use Redis and PHP to develop distributed search functions
Distributed search is one of the very common requirements in modern Internet applications. It can help users quickly and accurately Search for the information you need. Among them, Redis is a very fast and flexible in-memory database, while PHP is a scripting language widely used in web development. This article will introduce how to use Redis and PHP to develop distributed search functions and provide detailed code examples.
- Install Redis and PHP extensions
First, you need to install Redis and PHP extensions on the server to ensure that Redis functions can be used normally. For the installation of Redis, you can refer to the official documentation or corresponding tutorials. PHP extensions can be installed through package managers (such as apt, yum, etc.) or through source code compilation and installation.
- Design search index structure
Before using Redis for distributed search, you need to design the data structure of the search index. A common approach is to use a Sorted Set to store the index and a Hash to store the details of each document. It can be designed in the following way:
索引：
ZADD index:<关键词> <权重> <文档ID>
文档：
HMSET doc:<文档ID> title <标题> content <内容>
Among them, is the search keyword, is the importance weight of the keyword in the document (optional) , is the unique document identifier, is the document title, and <Content> is the document content. </p><ol start="3"><li>Build a search index<br>Before conducting a search, you first need to establish a search index in Redis. You can first store the content, titles and other information of all documents in Redis, and create appropriate indexes for each document. </li></ol><pre class='brush:php;toolbar:false;'>// 获取文档列表
$documents = [/* 文档列表 */];
// 遍历文档列表
foreach ($documents as $document) {
// 生成文档ID
$docId = $document['id'];
// 将文档信息存储为Hash
$redis->hMSet("doc:$docId", [
'title' => $document['title'],
'content' => $document['content']
]);
// 对文档进行分词，并将分词结果存储到索引中
$keywords = /* 对文档进行分词处理 */;
foreach ($keywords as $keyword) {
$redis->zAdd("index:$keyword", $document['weight'], $docId);
}
}</pre><p>The above code traverses the document list, stores each document as a Redis hash, performs word segmentation on each document, and stores the word segmentation results in the corresponding index. </p><ol start="4"><li>Execute search function<br>After the search index is established, you can search. You can find the matching document ID from the index based on the keywords entered by the user, and obtain the detailed information of the document based on the document ID. </li></ol><pre class='brush:php;toolbar:false;'>// 获取用户输入的关键词
$keyword = /* 用户输入的关键词 */;
// 根据关键词从索引中获取文档ID列表
$documentIds = $redis->zRangeByLex("index:$keyword", '-', '+');
// 根据文档ID获取文档的详细信息
$documents = [];
foreach ($documentIds as $docId) {
$documents[] = $redis->hGetAll("doc:$docId");
}
// 对搜索结果进行展示
foreach ($documents as $document) {
/* 对搜索结果进行展示的逻辑 */
}</pre><p>The above code obtains the document ID list that matches the keyword from the index, and obtains the detailed information of the document from Redis based on the document ID. Finally, the search results can be displayed according to needs. </p>
<p>Summary: <br>By using Redis and PHP to develop distributed search functions, the speed and efficiency of search can be improved, and large-scale data storage and search can be supported. This article describes how to design the data structure of a search index, and how to build the index and perform search functions. At the same time, detailed PHP code examples are provided to facilitate developers to get started quickly. I hope this article will be helpful to readers who use Redis and PHP to develop distributed search functions. </p><p>The above is the detailed content of How to develop distributed search functionality using Redis and PHP. For more information, please follow other related articles on the PHP Chinese website!</p>
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<p class="Articlelist_txts_p">User voice input is captured and sent to the PHP backend through the MediaRecorder API of the front-end JavaScript; 2. PHP saves the audio as a temporary file and calls STTAPI (such as Google or Baidu voice recognition) to convert it into text; 3. PHP sends the text to an AI service (such as OpenAIGPT) to obtain intelligent reply; 4. PHP then calls TTSAPI (such as Baidu or Google voice synthesis) to convert the reply to a voice file; 5. PHP streams the voice file back to the front-end to play, completing interaction. The entire process is dominated by PHP to ensure seamless connection between all links.</p>
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<a href="//m.sbmmt.com/faq/1796846918.html" title="How to use PHP to build social sharing functions PHP sharing interface integration practice" class="phphistorical_Version2_mids_img">
<img onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/503/042/175318476518239.png?x-oss-process=image/resize,m_fill,h_207,w_330" alt="How to use PHP to build social sharing functions PHP sharing interface integration practice" />
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<a href="//m.sbmmt.com/faq/1796846918.html" title="How to use PHP to build social sharing functions PHP sharing interface integration practice" class="phphistorical_Version2_mids_title">How to use PHP to build social sharing functions PHP sharing interface integration practice</a>
<span class="Articlelist_txts_time">Jul 25, 2025 pm 08:51 PM</span>
<p class="Articlelist_txts_p">The core method of building social sharing functions in PHP is to dynamically generate sharing links that meet the requirements of each platform. 1. First get the current page or specified URL and article information; 2. Use urlencode to encode the parameters; 3. Splice and generate sharing links according to the protocols of each platform; 4. Display links on the front end for users to click and share; 5. Dynamically generate OG tags on the page to optimize sharing content display; 6. Be sure to escape user input to prevent XSS attacks. This method does not require complex authentication, has low maintenance costs, and is suitable for most content sharing needs.</p>
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<div class="phphistorical_Version2_mids">
<a href="//m.sbmmt.com/faq/1796846920.html" title="How to use PHP combined with AI to achieve text error correction PHP syntax detection and optimization" class="phphistorical_Version2_mids_img">
<img onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/503/042/175318452251625.jpeg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="How to use PHP combined with AI to achieve text error correction PHP syntax detection and optimization" />
</a>
<a href="//m.sbmmt.com/faq/1796846920.html" title="How to use PHP combined with AI to achieve text error correction PHP syntax detection and optimization" class="phphistorical_Version2_mids_title">How to use PHP combined with AI to achieve text error correction PHP syntax detection and optimization</a>
<span class="Articlelist_txts_time">Jul 25, 2025 pm 08:57 PM</span>
<p class="Articlelist_txts_p">To realize text error correction and syntax optimization with AI, you need to follow the following steps: 1. Select a suitable AI model or API, such as Baidu, Tencent API or open source NLP library; 2. Call the API through PHP's curl or Guzzle and process the return results; 3. Display error correction information in the application and allow users to choose whether to adopt it; 4. Use php-l and PHP_CodeSniffer for syntax detection and code optimization; 5. Continuously collect feedback and update the model or rules to improve the effect. When choosing AIAPI, focus on evaluating accuracy, response speed, price and support for PHP. Code optimization should follow PSR specifications, use cache reasonably, avoid circular queries, review code regularly, and use X</p>
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<a href="//m.sbmmt.com/faq/1796846910.html" title="PHP creates a blog comment system to monetize PHP comment review and anti-brush strategy" class="phphistorical_Version2_mids_img">
<img onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/503/042/175324698785730.png?x-oss-process=image/resize,m_fill,h_207,w_330" alt="PHP creates a blog comment system to monetize PHP comment review and anti-brush strategy" />
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<a href="//m.sbmmt.com/faq/1796846910.html" title="PHP creates a blog comment system to monetize PHP comment review and anti-brush strategy" class="phphistorical_Version2_mids_title">PHP creates a blog comment system to monetize PHP comment review and anti-brush strategy</a>
<span class="Articlelist_txts_time">Jul 25, 2025 pm 08:27 PM</span>
<p class="Articlelist_txts_p">1. Maximizing the commercial value of the comment system requires combining native advertising precise delivery, user paid value-added services (such as uploading pictures, top-up comments), influence incentive mechanism based on comment quality, and compliance anonymous data insight monetization; 2. The audit strategy should adopt a combination of pre-audit dynamic keyword filtering and user reporting mechanisms, supplemented by comment quality rating to achieve content hierarchical exposure; 3. Anti-brushing requires the construction of multi-layer defense: reCAPTCHAv3 sensorless verification, Honeypot honeypot field recognition robot, IP and timestamp frequency limit prevents watering, and content pattern recognition marks suspicious comments, and continuously iterate to deal with attacks.</p>
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<a href="//m.sbmmt.com/faq/1796846888.html" title="How to use PHP to combine AI to generate image. PHP automatically generates art works" class="phphistorical_Version2_mids_img">
<img onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/503/042/175326835276962.png?x-oss-process=image/resize,m_fill,h_207,w_330" alt="How to use PHP to combine AI to generate image. PHP automatically generates art works" />
</a>
<a href="//m.sbmmt.com/faq/1796846888.html" title="How to use PHP to combine AI to generate image. PHP automatically generates art works" class="phphistorical_Version2_mids_title">How to use PHP to combine AI to generate image. PHP automatically generates art works</a>
<span class="Articlelist_txts_time">Jul 25, 2025 pm 07:21 PM</span>
<p class="Articlelist_txts_p">PHP does not directly perform AI image processing, but integrates through APIs, because it is good at web development rather than computing-intensive tasks. API integration can achieve professional division of labor, reduce costs, and improve efficiency; 2. Integrating key technologies include using Guzzle or cURL to send HTTP requests, JSON data encoding and decoding, API key security authentication, asynchronous queue processing time-consuming tasks, robust error handling and retry mechanism, image storage and display; 3. Common challenges include API cost out of control, uncontrollable generation results, poor user experience, security risks and difficult data management. The response strategies are setting user quotas and caches, providing propt guidance and multi-picture selection, asynchronous notifications and progress prompts, key environment variable storage and content audit, and cloud storage.</p>
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<a href="//m.sbmmt.com/faq/1796846911.html" title="PHP realizes commodity inventory management and monetization PHP inventory synchronization and alarm mechanism" class="phphistorical_Version2_mids_img">
<img onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/503/042/175324572958058.png?x-oss-process=image/resize,m_fill,h_207,w_330" alt="PHP realizes commodity inventory management and monetization PHP inventory synchronization and alarm mechanism" />
</a>
<a href="//m.sbmmt.com/faq/1796846911.html" title="PHP realizes commodity inventory management and monetization PHP inventory synchronization and alarm mechanism" class="phphistorical_Version2_mids_title">PHP realizes commodity inventory management and monetization PHP inventory synchronization and alarm mechanism</a>
<span class="Articlelist_txts_time">Jul 25, 2025 pm 08:30 PM</span>
<p class="Articlelist_txts_p">PHP ensures inventory deduction atomicity through database transactions and FORUPDATE row locks to prevent high concurrent overselling; 2. Multi-platform inventory consistency depends on centralized management and event-driven synchronization, combining API/Webhook notifications and message queues to ensure reliable data transmission; 3. The alarm mechanism should set low inventory, zero/negative inventory, unsalable sales, replenishment cycles and abnormal fluctuations strategies in different scenarios, and select DingTalk, SMS or Email Responsible Persons according to the urgency, and the alarm information must be complete and clear to achieve business adaptation and rapid response.</p>
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<a href="//m.sbmmt.com/faq/1796848711.html" title="Beyond the LAMP Stack: PHP's Role in Modern Enterprise Architecture" class="phphistorical_Version2_mids_img">
<img onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/253/068/175356191176507.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="Beyond the LAMP Stack: PHP's Role in Modern Enterprise Architecture" />
</a>
<a href="//m.sbmmt.com/faq/1796848711.html" title="Beyond the LAMP Stack: PHP's Role in Modern Enterprise Architecture" class="phphistorical_Version2_mids_title">Beyond the LAMP Stack: PHP's Role in Modern Enterprise Architecture</a>
<span class="Articlelist_txts_time">Jul 27, 2025 am 04:31 AM</span>
<p class="Articlelist_txts_p">PHPisstillrelevantinmodernenterpriseenvironments.1.ModernPHP(7.xand8.x)offersperformancegains,stricttyping,JITcompilation,andmodernsyntax,makingitsuitableforlarge-scaleapplications.2.PHPintegrateseffectivelyinhybridarchitectures,servingasanAPIgateway</p>
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<a href="//m.sbmmt.com/faq/1796846909.html" title="How to build a PHP Nginx environment with MacOS to configure the combination of Nginx and PHP services" class="phphistorical_Version2_mids_img">
<img onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/503/042/175324734891116.png?x-oss-process=image/resize,m_fill,h_207,w_330" alt="How to build a PHP Nginx environment with MacOS to configure the combination of Nginx and PHP services" />
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<a href="//m.sbmmt.com/faq/1796846909.html" title="How to build a PHP Nginx environment with MacOS to configure the combination of Nginx and PHP services" class="phphistorical_Version2_mids_title">How to build a PHP Nginx environment with MacOS to configure the combination of Nginx and PHP services</a>
<span class="Articlelist_txts_time">Jul 25, 2025 pm 08:24 PM</span>
<p class="Articlelist_txts_p">The core role of Homebrew in the construction of Mac environment is to simplify software installation and management. 1. Homebrew automatically handles dependencies and encapsulates complex compilation and installation processes into simple commands; 2. Provides a unified software package ecosystem to ensure the standardization of software installation location and configuration; 3. Integrates service management functions, and can easily start and stop services through brewservices; 4. Convenient software upgrade and maintenance, and improves system security and functionality.</p>
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