Unable to install php-mysqli on PHP7
<p>I have installed PHP 7, mysql5.7, Apache2.2, CentOS6.</p>

<p>And I'm installing CodeIgniter3.0.6.</p>

<p>When I use database connection,
error occured and said</p>

<pre><code>A PHP Error was encountered

Severity: Core Warning

Message: PHP Startup: Unable to load dynamic library '/usr/lib64/php/modules/php_mysqli.so' - /usr/lib64/php/modules/php_mysqli.so: cannot open shared object file: No such file or directory

Filename: Unknown

Line Number: 0
</code></pre>

<p>Of course there are no files in '/usr/lib64/php/modules/php_mysqli.so', but I don't know how to install mysqli.so.</p>

<p>I tried </p>

<pre><code>yum install php-mysql
</code></pre>

<p>but </p>

<pre><code>Loaded plugins: fastestmirror, security
Setting up Install Process
Loading mirror speeds from cached hostfile
 * base: ftp.iij.ad.jp
 * epel: ftp.riken.jp
 * extras: ftp.iij.ad.jp
 * remi-safe: mirror.awanti.com
 * updates: ftp.iij.ad.jp
Resolving Dependencies
--&gt; Running transaction check
---&gt; Package php-mysql.x86_64 0:5.3.3-46.el6_7.1 will be installed
--&gt; Processing Dependency: php-common(x86-64) = 5.3.3-46.el6_7.1 for package: php-mysql-5.3.3-46.el6_7.1.x86_64
--&gt; Finished Dependency Resolution
Error: Package: php-mysql-5.3.3-46.el6_7.1.x86_64 (updates)
           Requires: php-common(x86-64) = 5.3.3-46.el6_7.1
           Installed: php-common-7.0.4-1.el6.remi.x86_64 (@remi-php70)
               php-common(x86-64) = 7.0.4-1.el6.remi
           Available: php-common-5.3.3-40.el6_6.x86_64 (base)
               php-common(x86-64) = 5.3.3-40.el6_6
           Available: php-common-5.3.3-46.el6_6.x86_64 (updates)
               php-common(x86-64) = 5.3.3-46.el6_6
           Available: php-common-5.3.3-46.el6_7.1.x86_64 (updates)
               php-common(x86-64) = 5.3.3-46.el6_7.1
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest
</code></pre>

<p>and it didn't work.</p>

<hr>

<p>when I execute <code>yum install php7.0-mysql</code> or <code>yum install php70w-mysql</code> command,</p>

<pre><code>Loaded plugins: fastestmirror, security
Setting up Install Process
Loading mirror speeds from cached hostfile
 * base: ftp.iij.ad.jp
 * epel: ftp.riken.jp
 * extras: ftp.iij.ad.jp
 * remi-safe: mirror.awanti.com
 * updates: ftp.iij.ad.jp
No package php7.0-mysql available.
Error: Nothing to do
</code></pre>

<p>I don't know what to do at all.</p>