php7打开mysqli扩展,如何在php7中启用MySQLi扩展？

我在Ubuntu 14.04上安装了PHP 7&＃xff0c;MySQL 5.5.47。

我已经检查了安装的扩展名&＃xff1a;

sudo apt-cache search php7-*

它输出我&＃xff1a;

php7.0-common - Common files for packages built from the PHP source

libapache2-mod-php7.0 - server-side, HTML-embedded scripting language (Apache 2 module)

php7.0-cgi - server-side, HTML-embedded scripting language (CGI binary)

php7.0-cli - command-line interpreter for the PHP scripting language

php7.0-phpdbg - server-side, HTML-embedded scripting language (PHPDBG binary)

php7.0-fpm - server-side, HTML-embedded scripting language (FPM-CGI binary)

libphp7.0-embed - HTML-embedded scripting language (Embedded SAPI library)

php7.0-dev - Files for PHP7.0 module development

php7.0-dbg - Debug symbols for PHP7.0

php7.0-curl - CURL module for PHP

php7.0-enchant - Enchant module for PHP

php7.0-gd - GD module for PHP

php7.0-gmp - GMP module for PHP

php7.0-imap - IMAP module for PHP

php7.0-interbase - Interbase module for PHP

php7.0-intl - Internationalisation module for PHP

php7.0-ldap - LDAP module for PHP

php7.0-mcrypt - libmcrypt module for PHP

php7.0-readline - readline module for PHP

php7.0-odbc - ODBC module for PHP

php7.0-pgsql - PostgreSQL module for PHP

php7.0-pspell - pspell module for PHP

php7.0-recode - recode module for PHP

php7.0-snmp - SNMP module for PHP

php7.0-tidy - tidy module for PHP

php7.0-xmlrpc - XMLRPC-EPI module for PHP

php7.0-xsl - XSL module for PHP

php7.0 - server-side, HTML-embedded scripting language (metapackage)

php7.0-json - JSON module for PHP

php-all-dev - package depending on all supported PHP development packages

php7.0-sybase - Sybase module for PHP

php7.0-sqlite3 - SQLite3 module for PHP

php7.0-mysql - MySQL module for PHP

php7.0-opcache - Zend OpCache module for PHP

php7.0-bz2 - bzip2 module for PHP

我不能使用phpinfo()看到MySQLi扩展&＃xff0c;请让我知道&＃xff0c;如何在PHP 7中启用/安装MySQLi扩展。

这就是为什么我不能使用phpmyadmin&＃xff0c;它的说法是“缺少mysqli扩展名”。

注意&＃xff1a;我是php7的新手。