PHP

PclZip is a PHP-based ZIP archive library that allows you to easily create, read, and extract ZIP files. Unlike the ZipArchive class, PclZip does not require the PHP Zip extension. After spending an entire afternoon experimenting, I ultimately decided to give up on ZipArchive – I really had to give up on it! The original requirement was: "Download a ZIP file remotely using PHP, extract it, and overwrite it into a specified directory; if the specified directory does not exist, then..."

This PHP script allows for the remote download and extraction of a ZIP file, overwriting files in a specified directory; if the specified directory does not exist, it will be created; if the directory already exists, it will be emptied. The extracted ZIP file contains files with Chinese filenames. I previously wrote an article titled "PHP Remote Download and Extraction of a ZIP File, Overwriting Files in a Specified Directory" – you may refer to it for guidance. However, after implementing this code, I encountered an issue: specifically, an error is thrown if the target directory does not exist! During extraction...

You can use PHP's built-in functions `file_exists()` and `is_dir()` to check whether a directory exists. If the directory exists, you can use the `glob()` function to retrieve all files within it and then use the `unlink()` function to delete them. If the directory does not exist, you can use the `mkdir()` function to create it. Here is an example code that implements the above functionality: $d...

In PHP, you can execute multiple SQL statements at once through the mysqli_multi_query() function. The following is a sample code: <?php // Define MySQL database connection parameters $host = "localhost"; $user = "root"; $password = "password";…

This function is mainly used to execute sql statements and return success or failure! 🔒 Hidden content: viewable after logging in/** * Execute the specified SQL statement * * @param string $sql SQL statement to be executed * @param string $db_host database host name * @param string $db_user database…

In PHP, you can use the SHOW TABLES command of the MySQL database to obtain the names of all data tables in the current database, and then use the DROP TABLE command to delete data tables with a specified prefix in batches. The following is a simple PHP function for batch deleting data tables with specified prefixes: function deleteTables($prefix) { /…

In PHP, you can use the built-in string function strpos() to check whether a specified string exists within another string. Below is an example of using the strpos() function to determine whether a specified string is present: 🔒 Hidden content: View after commenting. $myString = "This is a sample string"; $findString = "s...";

Very practical operation! PHP code: 🔒 Hidden content: Viewable after logging in<?php // Connect to MySQL database $host = "localhost"; // MySQL server address $username = "your_username"; // MySQL username $password = "your_pa…

Manual modification of one or two tables in the database is fine! But I have more than 260 tables with data, and it’s exhausting to do it manually! At this time, you need to use PHP to make batch modifications! To replace the table prefix of a MySQL database, you need to perform the following steps: Connect to the MySQL database. Query all table names in the database. Iterate through each table, replacing its name with the new prefix. Execute an ALTER TABLE statement for each table to modify the table name...

You can use the `header()` function in PHP to redirect the user to the `/e/admin` directory under the current domain name. You can retrieve the current domain name using `$_SERVER['HTTP_HOST']`, concatenate it with `/e/admin`, and then use the `header()` function to perform the redirection. Here is an example code snippet: `<?php // Get the current domain name...`