If you are running Centos 7 or earlier version, installing php extensions using command line can come in handy. This way you dont need to use EasyApache and select extensions.

Iconv and Curl

 pear channel-update pear.php.net
 yum install ea-php73-php-iconv -y
 yum install ea-php72-php-iconv -y
 yum install ea-php72-php-curl -y

Opcache

yum install ea-php72-opcache
 yum install ea-php-opcache
 yum install php-opcache

GD Library

Needed by wordpress to optimize images when you upload images

yum install php php-common php-cli php-gd php72-gd

Mysql

yum install php7-mysql

Important extensions

Other important extensions you might need

bcmath	hash	mime_magic	Reflection	wddx
calendar	iconv	mssql	session	xml
ctype	imagick*	mysql	SimpleXML	xmlreader
curl	imap	mysqli	soap	xmlrpc
date	ionCube Loader	openssl	sockets	xmlwrite
dom	json	pcre	SourceGuardian	xsl
exif*	libxml	PDO	SPL	zip
filter	magickwand*	pdo_mysql	SQLite	zlib
ftp	mbstring	pdo_sqlite	standard
gd	mcrypt	posix	tidy
gettext	mhash	pspell	tokenizer

*The modules exif, imagick, and magickwand are currently only available on Linux servers.