For Laravel 6/7, also enable extension=pdo_sqlite for testing and extension=bcmath for precise calculations.
PHP 7.4 includes numerous extensions that you can enable or disable through php.ini . To activate an extension, simply remove the semicolon ( ; ) at the beginning of its line.
PHP 7.4 is stricter about MySQL authentication. Run these SQL commands in phpMyAdmin:
XAMPP does not support directly upgrading PHP from 7.4 to 8.x. The PHP implementation is deeply integrated with Apache modules, control panel configuration, and extension DLLs. Replacing PHP files with a newer version almost inevitably leads to service crashes or extension loading failures. The only reliable approach is to perform a clean installation of a newer XAMPP version that natively bundles PHP 8.x. Xampp With Php 7.4 -
It remains highly utilized for local development when maintaining legacy applications that are incompatible with PHP 8.x. Technical Considerations & Known Issues
Increase memory_limit to 256M or 512M for heavier CMS like WordPress.
The default path is C:\xampp . Installing XAMPP inside the C:\Program Files folder can cause permission errors due to Windows security settings. 4. Complete the Setup Replacing PHP files with a newer version almost
If you already have a newer version of XAMPP and need 7.4 for a specific project, you have two primary options: Direct Download (Recommended) : Download the full installer for the 7.4.x series from the official XAMPP download archive on SourceForge Manual Swap Download the Thread Safe (TS) zip version of PHP 7.4 from PHP.net Windows downloads Rename your existing C:\xampp\php C:\xampp\php_backup Extract the PHP 7.4 zip contents into a new C:\xampp\php Update your httpd-xampp.conf file to point to the new PHP 7.4 files if the filenames differ. Common Fix for PHP 7.4 on XAMPP
If you install Composer globally, it might point to a different system PHP version.
While PHP 8.x is the current standard, PHP 7.4 remains highly relevant in the development world for several reasons: If you share with third parties
Change upload_max_filesize and post_max_size if you plan on uploading large databases or media.
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