Opayo Hosted Page PHP Integration

Job ID: 40454415

Budget: $30 – $250 USD

I need clear, working guidance for wiring Opayo’s hosted payment page into a PHP 8.3 environment that will handle one-time card payments through their Hosted Payment page for Payment Gateway service. My immediate priority is obtaining and correctly loading the vendor credentials (Vendor Name, encryption key, IP allowance, etc.) and then proving that everything works in the Opayo sandbox before I touch live traffic.

Here is what I expect from you:

• A concise walk-through (or short set of commented scripts) that shows how to build the crypt string, post it to the hosted page, and receive the successful, failed and aborted callbacks, all written for PHP 8.3.
• An explanation of which test card numbers and CV2/3-D Secure values Opayo accepts, plus what a complete sample payload looks like—so I can duplicate your results locally.
• Guidance on where each setting lives inside the Opayo back-office and how to flip them when I move from test to live.

Need a clean, reusable integration that compiles under PHP 8.3 with no deprecated calls.