Merge 2f1e798f54 into 559d03ecf3

updates vscode cheat sheet

README.md

@@ -95,6 +95,14 @@ Feel free to take a look. You might learn new things. They have been designed to
 - [Redis](databases/redis.sh)
   </details>
 
+#### Cheat Class
+<details>
+<summary>view cheatsheets</summary>
+
+  - [PDO](cheatclass/PDO.php)
+  
+</details>
+
 ### 🔧 Tools
 
 <details>

cheatclass/PDO.php

@@ -0,0 +1,88 @@
+<?php
+	/* 
+   *  PDO DATABASE CLASS
+   *  Connects Database Using PDO
+	 *  Creates Prepeared Statements
+	 * 	Binds params to values
+	 *  Returns rows and results
+	 *  credit: Traversy media
+   */
+class Database {
+	private $host = "localhost";
+	private $user = "DB_User";
+	private $pass = "DB_PASS";
+	private $dbname = "DB_NAME";
+	
+	private $dbh;
+	private $error;
+	private $stmt;
+	
+	public function __construct() {
+		// Set DSN
+		$dsn = 'mysql:host=' . $this->host . ';dbname=' . $this->dbname;
+		$options = array (
+			PDO::ATTR_PERSISTENT => true,
+			PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION 
+		);
+
+		// Create a new PDO instanace
+		try {
+			$this->dbh = new PDO ($dsn, $this->user, $this->pass, $options);
+		}		// Catch any errors
+		catch ( PDOException $e ) {
+			$this->error = $e->getMessage();
+		}
+	}
+	
+	// Prepare statement with query
+	public function query($query) {
+		$this->stmt = $this->dbh->prepare($query);
+	}
+	
+	// Bind values
+	public function bind($param, $value, $type = null) {
+		if (is_null ($type)) {
+			switch (true) {
+				case is_int ($value) :
+					$type = PDO::PARAM_INT;
+					break;
+				case is_bool ($value) :
+					$type = PDO::PARAM_BOOL;
+					break;
+				case is_null ($value) :
+					$type = PDO::PARAM_NULL;
+					break;
+				default :
+					$type = PDO::PARAM_STR;
+			}
+		}
+		$this->stmt->bindValue($param, $value, $type);
+	}
+	
+	// Execute the prepared statement
+	public function execute(){
+		return $this->stmt->execute();
+	}
+	
+	// Get result set as Associative array
+	public function resultset(){
+		$this->execute();
+		return $this->stmt->fetchAll(PDO::FETCH_ASSOC);
+	}
+	
+	// Get single record as object
+	public function single(){
+		$this->execute();
+		return $this->stmt->fetch(PDO::FETCH_OBJ);
+	}
+	
+	// Get record row count
+	public function rowCount(){
+		return $this->stmt->rowCount();
+	}
+	
+	// Returns the last inserted ID
+	public function lastInsertId(){
+		return $this->dbh->lastInsertId();
+	}
+}

frontend/html5.html

@@ -185,7 +185,6 @@ width=""                                          <!-- Describes the width of th
 <!-- Some other useful tags -->
 
 <canvas></canvas>                                 <!-- Allows to draw 2D shapes on the web page with the help of javascript -->
-<keygen>                                          <!-- Represents a control for generating a public-private key pair -->
 <map></map>                                       <!-- Specifies an image map -->
 
 <!-- Collective Character Obejcts -->

tools/vim.txt

@@ -105,7 +105,7 @@ gu$                 make lowercase until end of line
 <<                  indent line one column to left
 ==                  auto-indent current line
 ddp                 swap current line with next
-ddkp                swap current line with previous
+ddkP                swap current line with previous
 :%retab             fix spaces / tabs issues in whole file
 :r [name]           insert the file [name] below the cursor.
 :r !{cmd}           execute {cmd} and insert its standard output below the cursor.

tools/vscode.md

@@ -7,6 +7,7 @@
 #### General
 
 - `Ctrl`+`Shift`+`P`, `F1`: Show Command Palette
+- `Ctrl`+`Shift`+`T`: Open last closed tab
 - `Ctrl`+`P`: Quick Open, Go to File
 - `Ctrl`+`Shift`+`N`: New window/instance
 - `Ctrl`+`W`: Close window/instance