1.) Request
2.) Response
200 OK
301 Moved Permanently
400 Bad Request
404 Not Found
GET index.php HTTP/1.1.
host: localhost
GET
POST
HEAD
PUT
DELETE
TRACE
OPTIONS
CONNECT
$_GET []
$_POST []
$_COOKIE []
$_SESSION []
md5 ("password")
<FORM ACTION="./form.php" METHOD="GET">
<INPUT TYPE="password" name="password1"></INPUT>
<INPUT TYPE="submit"></INPUT>
</FORM>
SHOW DATABASES;
CREATE DATABASE "abc"
DROP DATABASE "abc"
DROP TABLE "abc"
CREATE TABLE "abc" (abc01 VARCHAR (32), abc02 VARCHAR (32))
INSERT INTO abc VALUES ("001", "002")
SELECT * FROM abc;
SELECT * FROM abc WHERE expression
SELECT * FROM abc JOIN def
mysql_connect ()
mysql_query ()
mysql_close ()
mysql_error ()
mysql_fetch_row ()
mysql_fetch_assoc ()
mysql_select_db
mysql_real_escape_string ()
mysql_num_rows ()
mysql_num_fields ()
