Fundamentals
<form>
Predefined Variables
$_GET
$_POST
$_COOKIE
$_SESSION
$_SERVER
Relevant HTML tags/att.
<form>
method="POST"
action="index.php?id=1"
Built-in Functions
header()
include()
session_start()
session_destroy()
password_hash()
password_verify()
json_encode()
isset()
intval()
file_get_contents()
json_decode()
Wrappers
php://
Connecting to a DBMS
mysqli_connect()
mysqli_construct()
mysqli_query()
mysqli_close()
mysqli_num_rows()
mysqli_fetch_assoc()
Classes / Objects
public
protected
private
SQLite3
PDO
PDOStatement
Operators
->
::
Glossary
Bug encounters
Fatal error: 8 attempt to write a readonly database