Build AI Marketing Tool and Image Generation App with PHP and OpenAI GPT-3 for Beginners

Introduction

In this tutorial, we will explore how to create a simple marketing tool using PHP and OpenAI's GPT-3 API. This application will be capable of generating three Facebook captions for marketing purposes, as well as creating images based on user prompts. By following this guide, even beginners can learn how to harness the power of AI for marketing tasks.

Prerequisites

To get started with our application, you'll need a few development tools:

1. XAMPP: This will help set up your PHP environment. Download XAMPP from the official website and follow the installation instructions.
2. Composer: A dependency manager for PHP. Download Composer and install it on your system.
3. Visual Studio Code: A powerful code editor for writing your PHP code.
4. OpenAI Account: Sign up for an account on the OpenAI website. After registering, you will receive a set of free API credits to start using.

Setting Up Your Environment

1. Start Apache Server: Once XAMPP is installed, open the XAMPP Control Panel and start the Apache server.
2. Creating Project Folder: Navigate to the C:\xampp\htdocs directory and create a new folder called PHP_Ai_App.
3. Open Project in Visual Studio Code: Drag and drop the newly created folder into the Visual Studio Code window.

Building the Application

1. Create an index.php file:

   • Set up a basic HTML structure.
   • Use PHP to display a welcome message.

   <?php
   echo "Hello PHP";
   ?>
   

2. Set Up Composer and Install OpenAI SDK:

   • Open the terminal in Visual Studio Code and run the following command to install the OpenAI PHP SDK:

   composer require openai/openai-php
   

3. Create the Form for Captions:

   • Next, let’s add a form to input the prompt for generating Facebook captions. The form will send user input to another PHP file (ai.php).

   <form action="ai.php" method="POST">
       <input type="text" name="prompt" placeholder="e.g. shoe, burger" required>
       <input type="submit" value="Generate">
   </form>
   

4. Create the ai.php file:

   • This file will handle the submitted form data, make requests to the OpenAI API, and display the generated captions.

   require 'vendor/autoload.php';
   
   // Set up OpenAI API Key
   $openai = new \OpenAI\Client('YOUR_SECRET_API_KEY');
   
   // Get prompt from POST request
   $prompt = $_POST['prompt'];
   
   // Call OpenAI API to generate captions
   $response = $openai->completions->create([
       'model' => 'text-davinci-003',
       'prompt' => "Write three marketing Facebook captions for: $prompt",
       'max_tokens' => 150,
   ]);
   
   foreach ($response['choices'] as $choice) (
       echo $choice['text'];
   )
   

5. Image Generation:

   • To generate images, create another form and add the image generation logic in the same manner as captions.

   <form action="image-ai.php" method="POST">
       <input type="text" name="image_prompt" placeholder="e.g. shoe" required>
       <input type="submit" value="Generate Image">
   </form>
   

   • In image-ai.php, use the OpenAI API to generate images similar to how captions were handled, but call the image generation endpoint instead.

Testing the Application

• Open your web browser and go to http://localhost/PHP_Ai_App.
• Test both the caption generation and image generation by submitting prompts in their respective forms.
• The application will provide outputs directly on the page, making it easy to see AI-generated captions or images based on your input.

Conclusion

This project illustrates how beginners can utilize the OpenAI API with PHP to create useful marketing tools. By manipulating prompts and parameters, you can generate tailored content suitable for various marketing purposes, all while enhancing your programming skills!

Keywords

OpenAI, PHP, XAMPP, Composer, AI Captions, Image Generation, API, Marketing Tool, GPT-3, Coding for Beginners.

FAQ

Q1: What is OpenAI?
A1: OpenAI is an artificial intelligence research organization that offers various AI models, including the GPT-3 model, for generating text and images based on user prompts.

Q2: What is the purpose of this project?
A2: The project aims to demonstrate how to create a simple application that generates Facebook marketing captions and images using PHP and OpenAI's GPT-3.

Q3: What tools do I need to follow this tutorial?
A3: You will need XAMPP for setting up a PHP server, Composer for dependency management, and a code editor like Visual Studio Code.

Q4: Can I use this application for generating captions in other domains?
A4: Yes, you can change the prompts to generate captions for other topics based on your needs.

Q5: What should I do if I encounter issues while setting up the environment?
A5: Make sure to follow the installation guides for XAMPP and Composer carefully. If needed, refer to the official documentation for troubleshooting tips.