add json db to php

php/library/json-db.class.php

@@ -0,0 +1,158 @@
+<?php
+/***
+ * DB
+ * A simple json db class
+ */
+class DB
+{
+  private $path = '';
+  private $db = [];
+
+  /**
+   * CONSTRUCTOR
+   * 
+   * @param $path: string (default 'db.json')
+   */
+  public function __construct($path = "db.json"){
+    $this->path = $path;
+
+    if(!file_exists($path)){
+      // If the .json extension is not provided, append it
+      if(strpos($path, '.json') === false){ $path .= '.json'; }
+
+      $fp = fopen($path,"wb");
+      fwrite($fp, "{}");
+      fclose($fp);
+    }
+
+    // Get the contect of the current path
+    $this->db = json_decode(file_get_contents($path), false, 512, JSON_UNESCAPED_UNICODE);
+  }
+
+  /**
+   * SAVE
+   * Save the new db
+   */
+  private function save(){
+    $json = ($this->db === "{}") ? $this->db : json_encode($this->db, JSON_UNESCAPED_UNICODE);
+
+    file_put_contents($this->path, $json);
+  }
+
+  /**
+   * INSERT
+   * 
+   * @param $data: array
+   * @param $key: string (optional)
+   * 
+   * @return DB
+   */
+  public function insert($data, $key = ""){
+    if($key !== "")
+      $this->db[$key] = $data;
+    else
+      $this->db[] = $data;
+
+    $this->save();
+
+    return $this;
+  }
+  
+  /**
+   * UPDATE
+   * 
+   * @param $data: array
+   * @param $key: string
+   * 
+   * @return DB
+   */
+  public function update($data, $key){
+    if($key !== "")
+      $update = array_merge($this->db[$key], $data);
+      $this->db[$key] = $update;
+
+    $this->save();
+
+    return $this;
+  }
+
+  /**
+   * DELETE
+   * 
+   * @param $key: string
+   * 
+   * @return DB
+   */
+  public function delete($key){
+    unset($this->db[$key]);
+
+    $this->save();
+
+    return $this;
+  }
+
+  /**
+   * GET SINGLE
+   * 
+   * @param $key: string
+   * 
+   * @return array
+   */
+  public function getSingle($key){
+    return $this->db[$key] ?? null;
+  }
+
+  /**
+   * GET LIST
+   * 
+   * @param $conditions: array (optional)
+   * @param $orderBy: array (optional)
+   * 
+   * @return array
+   */
+  public function getList($conditions = [], $orderBy = []){
+    $result = [];
+
+    if(empty($conditions)){
+      $result = $this->db;
+    }else{
+      foreach($this->db as $key => $value){
+        $requirements = true;
+
+        foreach($conditions as $k => $v){
+          if($value[$k] !== $v){
+            $requirements = false;
+          }
+        }
+
+        if($requirements) $result[$key] = $value;
+      }
+    }
+
+    if($orderBy['on'] !== '' && $orderBy['order'] !== ''){
+      usort($result, function($first, $second) use($orderBy){
+        if($orderBy['order'] === "ASC"){
+          return strcmp($first[$orderBy['on']], $second[$orderBy['on']]) > 0;
+        }else{
+          return strcmp($first[$orderBy['on']], $second[$orderBy['on']]) < 0;
+        }
+      });
+    }
+
+    return $result;
+  }
+
+  /**
+   * CLEAR
+   * 
+   * @return DB
+   */
+  public function clear(){
+    $this->db = "{}";
+
+    $this->save();
+
+    return $this;
+  }
+}
+?>