Initial commit

common/database/Connection.php

@@ -0,0 +1,81 @@
+<?php
+
+namespace common\database;
+
+class Connection {
+    protected static $mysqli;
+
+    protected $config;
+
+    function __construct() {
+        $this->config = config('database');
+    }
+
+    public function connect() {
+        if ( !static::$mysqli ) {
+            static::$mysqli = new \mysqli(
+                $this->config['url'],
+                $this->config['username'],
+                $this->config['password'],
+                $this->config['database']
+            );
+        }
+
+        if ( static::$mysqli->connect_errno ) {
+            throw new \Exception('Unable to connect to database: ' . static::$mysqli->connect_error);
+        }
+    }
+
+    public function escape($value) {
+        return static::$mysqli->real_escape_string($value);
+    }
+
+    public function execute($query, $args = [], $returns_statement = false) {
+        $statement = static::$mysqli->prepare($query);
+
+        if ( sizeof($args) > 0 ) {
+            $types = '';
+            foreach ( $args as $arg ) {
+                if ( is_int($arg) ) {
+                    $types .= 'i';
+                } else if ( is_float($arg) || is_double($arg) ) {
+                    $types .= 'd';
+                } else if ( is_string($arg) ) {
+                    $types .= 's';
+                } else {
+                    $types .= 'b';
+                }
+            }
+
+            $statement->bind_param($types, ...$args);
+        }
+
+        $statement->execute();
+
+        if ( $returns_statement ) return $statement;
+        return $statement->get_result();
+    }
+
+    public function insert($query, $args = []) {
+        $statement = $this->execute($query, $args, true);
+        return $statement->insert_id;
+    }
+
+    public function fetch($query, $args = []) {
+        $result = $this->execute($query, $args);
+
+        $rows = [];
+        while ( $row = $result->fetch_assoc() ) {
+            $rows[] = $row;
+        }
+
+        return $rows;
+    }
+
+    public function close() {
+        if ( static::$mysqli ) {
+            static::$mysqli->close();
+            static::$mysqli = null;
+        }
+    }
+}