What is the method to install mysqli extension in php

The method for php to install the mysqli extension is: 1. Find the mysqli directory under the ext directory and execute the [/usr/local/php7.2/bin/phpize] command; 2. Configure the system environment; 3. Execute [make && make install] command to compile and install.

Installation steps:

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1. Find mysqli

in the php7.2 ext directory. 2. Enter

/usr/local/php7.2/bin/phpize

3. Execute in the mysqli folder

./configure --with-php-config=/usr/local/php/bin/php-config --with-mysqli=/usr/bin/mysql_config

4. make

5. make install

Possible problems during the installation process:

Solution:

1. If mysql_config cannot be found, it may be that mysql-devel# is not installed.

##1. You need to install the source of MySQL

2. At this time, the relevant repo of MySQL will appear in the /etc/yum.repos.d/ directory

3. Execute the command

yum install mysql-devel

2. When installing mysqli, an error occurs: ext/mysqlnd/mysql_float_to_double.h: No such file or directory

Solution:

1 , vim /home/tmp/php-7.2.11/ext/mysqli/mysqli_api.c (find your installation directory here)

2. Modify the path on line 36 of the file

/ ext/mysqlnd/mysql_float_to_double.h

Modified to

/home/tmp/php-7.2.11/ext/mysqlnd/mysql_float_to_double.h

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