PHP API Framework

api.php

<?php

// HTACCESS:
// ----------------------------------
//   Options +FollowSymLinks
//   RewriteEngine On
//   RewriteCond  %{REQUEST_FILENAME} !-f
//   RewriteCond  %{REQUEST_FILENAME} !-d
//   RewriteRule ^ api.php [QSA,L]

header('Content-Type: application/json');

// Data Sources ############################################

// Array of filenames (no .json extension)

$sources = array("data_file1","data_file2");

// Save JSON ###############################################

function saveJSON($data,$src){
    $fh = fopen($src.".json", 'w')
        or die("Error opening output file");
    fwrite($fh, json_encode(array_values($data)));
    fclose($fh);
}

// Pick Apart URI ##########################################

$uri = $_SERVER['REQUEST_URI'];
$method = $_SERVER['REQUEST_METHOD'];
$paths = explode('/', $uri);
array_shift($paths);
$last = end($paths);
if(in_array($last,$sources)){
    $src = $last;
    $id = false;
}else{
    array_pop($paths);
    $src = end($paths);
    $id = $last;
}

// Get JSON ################################################

$str_data = file_get_contents($src.".json");
$data = json_decode($str_data,true);
$uid = "id";

// Handle Functions ########################################

switch ($method) {
    
    // Add/Modify

    case 'POST':
        $item = array();
        
        foreach($_POST as $key => $val){
            
            // Check for UID
            if($key=='id'){
                $id = $val;
            }
            
            if($val=='false' && strtolower($val)=='false'){
                $val = false;
            }
            
            $item[$key] = $val;
        }
        
        $insert = true;
        
        // Update
        foreach ($data as $key => $value) {
            if($value['id'] == $id) {
                $data[$key] = $item;
                $insert = false;
                break;
            }
        }
        // New (no id found)
        if($insert){
            $data[] = $item;
        }
        // Write File
        //var_dump($data);
        saveJSON($data,$src);
        break;
    
    // Delete a model
    
    case 'DELETE':
        foreach ($data as $key => $value) {
            if($value['id'] == $id) {
                unset($data[$key]);
            }
        }
        saveJSON($data,$src);
        break;
    
    // Get collection
    
    case 'GET':
        // Get single element
        if($id){
            foreach ($data as $key => $value) {
                if($value['id'] != $id) {
                    unset($data[$key]);
                }
            }
        }
        echo(json_encode(array_values($data)));
        break;
    
}

?>