PHP警告：PHP启动：无法加载动态库

Question

I have run Symfony on my ubuntu 16.04 it returned start up error. And I ran the php --ini command in cmd

PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/php_curl.dll' - /usr/lib/php/20151012/php_curl.dll: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/php_mbstring.dll' - /usr/lib/php/20151012/php_mbstring.dll: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/php_pdo_pgsql.dll' - /usr/lib/php/20151012/php_pdo_pgsql.dll: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php/20151012/php_pgsql.dll' - /usr/lib/php/20151012/php_pgsql.dll: cannot open shared object file: No such file or directory in Unknown on line 0
Configuration File (php.ini) Path: /etc/php/7.0/cli
Loaded Configuration File:         /etc/php/7.0/cli/php.ini
Scan for additional .ini files in: /etc/php/7.0/cli/conf.d
Additional .ini files parsed:      /etc/php/7.0/cli/conf.d/10-opcache.ini,
/etc/php/7.0/cli/conf.d/10-pdo.ini,
/etc/php/7.0/cli/conf.d/20-calendar.ini,
/etc/php/7.0/cli/conf.d/20-ctype.ini,
/etc/php/7.0/cli/conf.d/20-exif.ini,
/etc/php/7.0/cli/conf.d/20-fileinfo.ini,
/etc/php/7.0/cli/conf.d/20-ftp.ini,
/etc/php/7.0/cli/conf.d/20-gettext.ini,
/etc/php/7.0/cli/conf.d/20-iconv.ini,
/etc/php/7.0/cli/conf.d/20-json.ini,
/etc/php/7.0/cli/conf.d/20-mbstring.ini,
/etc/php/7.0/cli/conf.d/20-phar.ini,
/etc/php/7.0/cli/conf.d/20-posix.ini,
/etc/php/7.0/cli/conf.d/20-readline.ini,
/etc/php/7.0/cli/conf.d/20-shmop.ini,
/etc/php/7.0/cli/conf.d/20-sockets.ini,
/etc/php/7.0/cli/conf.d/20-sysvmsg.ini,
/etc/php/7.0/cli/conf.d/20-sysvsem.ini,
/etc/php/7.0/cli/conf.d/20-sysvshm.ini,
/etc/php/7.0/cli/conf.d/20-tokenizer.ini

Above warning occurs when running the php --ini command. How to resolve the warnings Also I have purged and installed the php7. I removed the comment in php.ini extension for some dll

Answer 1

PHP Warning: PHP Startup: Unable to load dynamic library ... is Error Can't run commands and you have not installed this extensions.

First stop Symfony:

php bin/console server:stop

Then

sudo apt-get install php7.0-curl php7.0-mbstring php7.0-pgsql php7.0-intl

After installing run Symfony:

php bin/console server:start