How to solve the problem of 500th error in php connection to mysql

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This article operating environment: windows7 system, PHP7.1 version, DELL G3 computer

How to solve the problem of php connection mysql 500error?

The mysql_connect () function is not available when PHP connects to mysql.

I didn't install the mysql extension when I was building the environment, but today I got an error when I was maintaining a project

Fatal error: Uncaught Error: Call to undefined function mysql_connect ()

You can use the phpize tool to manually compile and generate mysql.so extensions to solve the problem

Here are the steps:

1. Enter the ext/mysql directory of the php source code

Cd / home/oldboy/tools/php-5.5.32/ext/mysql/

two。 Run phpize and generate a configure file in this directory (php installation directory: / application/php/)

/ application/php/bin/phpize

3. Run configure, indicating the location of the php-config file (/ application/php/bin/php-config) and the mysql installation directory

. / configure-with-php-config=/application/php/bin/php-config-with-pdo-mysql=mysqlnd

4. Compile and install, generate mysql.so

Make & & make install

5. Modify php.ini file, add mysql.so extension configuration, save exit

Extension=mysql.so

6. Restart php-fpm

Service php-fpm restart

7. Test, add a php file, such as / usr/local/nginx/html/mysql.php, in the web directory