PHP collection

PHP is a high-performance scripting language used for developing websites and applications; it enables developers to quickly create powerful web applications. PHP scraping code refers to a specific type of PHP code that can efficiently retrieve information from websites. By using this code, developers can more easily fetch relevant data from the internet and integrate it into their own web pages or applications.

PHP uses regular expressions to match <a> links within web pages. Language Notes PHP PHP collection

Regular expressions can be used to match hyperlinks within HTML; here is an example code: $html = '&lt;html&gt;&lt;body&gt;&lt;a href="https://www.example.com">Example&lt;/a&gt;&lt;/body&gt;&lt;/html&gt;...

2023-02-23 22:42:59 👁 207

PHP uses the DOM extension to match <a> links within web pages. Language Notes PHP PHP collection

To match all links (a tags) within a web page, you can use PHP's DOM extension library to parse the HTML document and extract the links. Here is an example code: // Load an HTML page from a specified URL $html = file_get_contents(' http://www.example.com/'); // Create a DOM...

2023-02-23 22:36:56 👁 167

PHP uses regular expressions to scrape matching web pages and extract data. Language Notes PHP PHP collection

The built-in PHP function `preg_match()` can be used to perform regular expression matching. Below is an example function where the first parameter is the regular expression and the second parameter is the string to match: `function match_regex($pattern, $subject) {if (preg_match($pattern, $subject,...)

2023-02-23 22:34:34 👁 226

How can PHP be used to scrape web pages from a specific website? Language Notes PHP PHP collection

PHP can be used to scrape web page data; the most common approach is to use the cURL extension library. Here is a simple example: // Create a cURL resource $ch = curl_init(); // 设置URL和其他cURL选项 curl_setopt($ch, CURLOPT_URL, "http://www.example.com/");

2023-02-23 22:31:46 👁 167

PHP modifies the configuration in the config file Language Notes PHP PHP collection PHP and mysql

In PHP development websites, configuration files such as config.php generally require users to submit data for saving through the background. At this time, PHP is needed to operate this file! At this time, we need to use PHP to modify this PHP file. For example, the code in my config.php is like this: &lt;?php if(!defined('InEmpireCMS'))…

2023-02-18 16:38:11 👁 299

PHP regular match all pictures in the article Language Notes PHP PHP collection

You can use PHP's regular expression function preg_match_all() to match all image links in the article. The regular expression can be matched according to the format of the image link. Here is an example: function getImagesFromContent($content) { $pattern = '/&lt;img.*?src=[\'…

2023-02-18 11:09:01 👁 409

php import sql file into database Language Notes PHP PHP collection PHP and mysql

Using PHP to import an SQL file into a database is commonly employed during source code installation; this code encapsulates a class sourced from the internet: <?php /** * Created by PhpStorm. * User: Administrator * Date: 2018/10/13 * Time: 10:25 */ class ImportData{/...

2023-01-19 10:53:33 👁 217

php sql read and write operation database Language Notes PHP PHP collection PHP and mysql

I am about to learn object-oriented, so some codes need to be deleted. Here is a record. This string of code is mainly used for writing operations in the empire database, etc.

2022-11-06 11:20:56 👁 123

How does PHP operate sqlite database? Language Notes PHP PHP collection PHP and mysql

The PHP code below demonstrates how to connect to an existing database. If the database does not yet exist, it will be created; finally, a database object will be returned. <?php class MyDB extends SQLite3 {function __construct() {$this->open('test.db'...

2022-11-06 11:20:52 👁 176

mysqli in PHP Language Notes PHP PHP collection PHP and mysql

The `mysqli_num_rows()` function is exclusively used with `SELECT` query methods, whereas the `mysqli_affected_rows()` function returns the number of rows affected by the previous SQL statement across the entire database; this function is primarily used with `INSERT`, `UPDATE`, and `DELETE` operations.

2022-11-06 11:20:36 👁 146