A showcase of the art of PHP programming in Typecho

PHP programming art display in Typecho

Typecho is a simple, lightweight and easy-to-use PHP blog platform. It is characterized by its simple architecture, easy expansion, and powerful performance. As an open source blog system, Typecho gives developers full freedom to customize the platform by writing custom plug-ins or themes. This article will demonstrate the art of PHP programming in Typecho, illustrated through practical code examples.

Code example 1: Get article tags

In Typecho, multiple tags can be added to each article. Tags are very important for article classification and search. The following code example demonstrates how to obtain the tag information of a certain article:

<?php
$tags = [];
$cid = 1; // 文章的ID

$query = $this->db->select('table.metas', 'table.relationships')
    ->from('table.metas', 'table.relationships')
    ->where('table.metas.type = ?', 'tag')
    ->where('table.relationships.cid = ?', $cid)
    ->where('table.metas.mid = table.relationships.mid')
    ->fetchAll();

if (!empty($query)) {
    foreach ($query as $tag) {
        $tags[] = $tag['name'];
    }
}

echo implode(',', $tags);
?>

In the above code, first we define an empty array variable $tags to store the tag name. Then, we query the database to obtain the tag information of a certain article. In Typecho, tag information is stored in two tables: table.metas and table.relationships. We use select and from method to specify the query table, and define query conditions through the where method. Finally, the queried tag names are stored in the $tags array through a loop, and the implode function is used to output the tag names in the array to the page in comma-separated form.

Code example 2: Counting the word count of articles

In some blog platforms, counting the word count of articles is a common function. The following code example demonstrates how to implement the function of counting the word count of articles through PHP:

<?php
$content = "这是一篇测试文章，只是用来演示文章字数统计的功能。";
$wordCount = str_word_count(strip_tags($content));

echo "文章字数：" . $wordCount . "个字";
?>

In the above code, we first define a variable $content to store the content of the article. Then, use the strip_tags function to remove the HTML tags in the article, and then use the str_word_count function to count the number of words in the content after removing the tags. Finally, the statistical results are output to the page through the echo statement.

Code Example 3: Customize article summary length

Typecho By default, it will automatically generate a summary based on the article content and display it in the article list page. However, the default summary length may not meet our needs. The following code example demonstrates how to customize the length of the article summary:

<?php
$content = "这是一篇测试文章，只是用来演示如何自定义文章摘要的长度。";
$excerpt = mb_substr(strip_tags($content), 0, 100, 'utf-8');

echo $excerpt . '...';
?>

In the above code, we first define a variable $content to store the article Content. Then, use the strip_tags function to remove the HTML tags in the article, and then use the mb_substr function to intercept the summary of the specified length. In the mb_substr function, we pass in the length parameter 100 to indicate interception of 100 characters, and the final parameter 'utf-8' indicates the character encoding of the string. Finally, the intercepted summary plus ellipsis is output to the page through the echo statement.

Summary

Through the above code examples, we can see the art of PHP programming in Typecho. As a simple, lightweight and easy-to-use blogging platform, Typecho gives developers full freedom to customize the platform by writing custom plug-ins or themes. Developers can further explore the art of programming in Typecho through the above code examples and add more functions and features to their blogging platform.

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