win10 php install pdo extension

In the daily work of web developers, PHP, as an extremely popular server-side language, is widely used. However, if you want to use PHP to connect to a database, you need to use the PDO extension. Installing PDO extensions on Windows 10 can be a bit difficult, so this article will provide some simple steps and tips to help you install PDO extensions smoothly.

1. Download the VC runtime library

Before installing the PDO extension, you need to download and install the Visual C runtime library, because the PDO extension requires the VC runtime library. It can be downloaded from the official website (https://www.microsoft.com/zh-cn/download/details.aspx?id=48145) or other software download websites.

2. Open the php.ini file

Open the php.ini file for the PHP version you are using. It can be found in Apache->Config->PHP.ini in the XAMPP control panel.

3. Download the php_pdo.dll file

Search for the php_pdo.dll file in DLL-files.com and download it. Make sure to download the DLL that matches your PHP version and operating system.

4. Copy the php_pdo.dll file

Copy the downloaded php_pdo.dll file to the php/ext directory. PHP's extension directory may vary depending on the system or PHP version. You can set the extension_dir parameter in the php.ini file to the path of the corresponding php/ext folder by looking for the following code.

extension_dir = "ext"

5. Edit the php.ini file

Find the ;extension=pdo_mysql in the php.ini file and remove the ; That’s it. The author uses pdo_mysql. If you need other types of database servers such as sql server, just remove the corresponding comments.

Note that if you look at phpinfo(), you can see that PDO is enabled, but if an error occurs when using pdo_sqlsrv to connect, you can try to remove the comment.

6. Restart the Apache server

After modifying the php.ini file, you need to restart the Apache server so that PHP can load the PDO extension.

7. Test PDO extension

After referencing the PDO extension in the php.ini file, you can try to use PDO to connect to the database and read data to test whether the installation is successful.

<?php
//连接到MySQL数据库
$dbh = new PDO('mysql:host=localhost;dbname=test', $user, $pass);

//查询数据
$stmt = $dbh->prepare("SELECT * FROM mytable");
$stmt->execute();
$results = $stmt->fetchAll(PDO::FETCH_ASSOC);

//输出结果
foreach ($results as $row) {
    echo $row['id'] . ' - ' . $row['name'] . '<br />';
}
?>

Installing the PDO extension can be a bit tricky on Windows 10, but if you follow the steps above and pay attention to the details, you should be able to install and use the PDO extension without a hitch.

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