my-portfolio/dist/api/projectData.php

<?php
namespace api;
use PDO;

require_once "./config.php";

/**
 * Project Data Class
 * Define all functions which either get, update, create or delete timeline data
 */
class projectData
{
    /**
     * Get all project data
     * @return array - Array of all project data or error message
     */
    function getProjectData(): array
    {
        $conn = dbConn();
        $stmt = $conn->prepare("SELECT title, isMainProject, information, imgLocation, projectLink, githubLink FROM projects order by date LIMIT 4;");
        $stmt->execute();

        // set the resulting array to associative
        $result = $stmt->fetchAll(PDO::FETCH_ASSOC);

        if ($result)
        {
            return $result;
        }
        return array("errorMessage" => "Error, project data not found");
    }

    function updateProjectData(string $title, string $isMainProject, string $information, string $projectLink, string $githubLink, string $id): bool
    {
        $conn = dbConn();
        $stmt = $conn->prepare("UPDATE projects SET title = :title, isMainProject = :isMainProject, information = :information, projectLink = :projectLink, githubLink = :githubLink WHERE ID = :id");
        $stmt->bindParam(":title", $title);
        $stmt->bindParam(":isMainProject", $isMainProject);
        $stmt->bindParam(":information", $information);
        $stmt->bindParam(":projectLink", $projectLink);
        $stmt->bindParam(":githubLink", $githubLink);
        $stmt->bindParam(":id", $id);
        $stmt->execute();

        if ($stmt->rowCount() > 0)
        {
            return true;
        }
        return false;
    }

    function deleteProjectData(int $id): bool
    {
        $conn = dbConn();
        $stmt = $conn->prepare("DELETE FROM projects WHERE ID = :id");
        $stmt->bindParam(":id", $id);
        $stmt->execute();

        if ($stmt->rowCount() > 0)
        {
            return true;
        }
        return false;
    }

    function addProjectData(string $title, string $isMainProject, string $information, string $projectLink, string $githubLink): bool
    {
        $conn = dbConn();
        $stmt = $conn->prepare("INSERT INTO projects (title, isMainProject, information, projectLink, githubLink) VALUES (:title, :isMainProject, :information, :projectLink, :githubLink)");
        $stmt->bindParam(":title", $title);
        $stmt->bindParam(":isMainProject", $isMainProject);
        $stmt->bindParam(":information", $information);
        $stmt->bindParam(":projectLink", $projectLink);
        $stmt->bindParam(":githubLink", $githubLink);
        $stmt->execute();

        if ($stmt->rowCount() > 0)
        {
            return true;
        }
        return false;
    }
}