Long story short: just installed Ubuntu 12.04 (Debian based), nginx, php-fpm and mysql. Now I need the MySQL driver for PHP, but which should I choose?
Which is better php-mysqlnd or php-mysql?
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php-mysqlnd is the better choice. It is a drop-in replacement for the php-mysql extension. Here you can find more information about it.
Excerpt from the above-mentioned link:
The mysqlnd library is highly optimized for and tightly integrated into PHP. The MySQL Client Library cannot offer the same optimizations because it is a general-purpose client library.
The mysqlnd library is using PHP internal C infrastructure for seamless integration into PHP. In addition, it is using PHP memory management, PHP Streams (I/O abstraction) and PHP string handling routines. The use of PHP memory management by mysqlnd allows, for example, memory savings by using read-only variables (copy on write) and makes mysqlnd apply to PHP memory limits. Additional advantages include: