use these commands only
sudo su
yum install php73-php-imap php73-php-process php73-php-pspell php73-php-xml php73-php-xmlrpc php73-php-pdo php73-php-ldap php73-php-pecl-zip php73-php-common php73-php php73-php-mcrypt php73-php-gmp php73-php-mysqlnd php73-php-mbstring php73-php-gd php73-php-tidy php73-php-pecl-memcache --enablerepo=remi
and then
service httpd restart