N.B. PHP 5.3 has not been supported now for almost 3 years, the best approach really would be to port any code over to a newer version, as the provided versions in EA4 are having fixes backported into them.
Although the issuance of apache easyapache 4 became mandatory in modern versions of cpanel
but some see him he issued a complex deal
so you can easily go back to version easyapache 3 performs the following commands respectively