There's no library implementing Eikon Data APIs for PHP and none is planned for the future. Eikon is an end user product. Any data retrieved from Eikon is for individual user's use. PHP is primarily used server side. If you're creating a Web application that needs to utilize Refinitiv data server side you may want to look at Refinitiv Enterprise products such as Elektron datafeed, Datascope Select, TRKD etc. Or perhaps Eikon App Studio proposition might suit your use case. If you need help selecting a Refinitiv product that is a best fit for the solution you're implementing, the best resource is your Refinitiv account manager. I suggest you reach out to your Refinitiv account manager, who in turn will bring in any Refinitiv specialists into the conversation as needed.