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--- doc:todo:mysqlnd_vs_libmysql [2011/09/08 14:28] – [Major features added after PHP 5.3.0] uw
+++ doc:todo:mysqlnd_vs_libmysql [2017/09/22 13:28] (current) – external edit 127.0.0.1
@@ Line 10: / Line 10: @@
 mysqlnd is part of the PHP source code as of PHP 5.3. Therefore users do not need to install any MySQL libraries on their PHP build host.
+Windows builds downloaded from php.net use mysqlnd as their default MySQL client library as of PHP 5.3. With PHP 5.4 the default library used with mysql, mysqli and PDO_MySQL is mysqlnd on all platforms. Using the MySQL Client Library (AKA libmysql) is still supported. There are no plans to remove libmysql support.
 ==== Major features added after PHP 5.3.0 ====
@@ Line 17: / Line 20: @@
   * Named pipe support available as of PHP 5.3.4
+==== Feature and extension dependencies ====
+Mysqlnd is tightly integrated into PHP. It is using PHP infrastructure, for example, PHP Streams. Some mysqlnd features depend on other PHP extensions:
+  * Compression: requires Zlib extension, http://www.php.net/manual/en/zlib.installation.php
+  * SSL: requires OpenSSL extension, http://www.php.net/manual/en/openssl.installation.php
+Please make sure that you are using a PHP build with Zlib and OpenSSL support when switching from libmysql to mysqlnd. This will ensure that mysqlnd offers the same functionality as libmysql does.
 ==== Major feature differences ====
 **mysqlnd does not support:**
-  * mysqlnd uses PHP Streams for networking:
-    * no named pipes on Windows - prepared for PHP 5.3.4
   * mysqlnd will not read my.cnf server configuration files

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