Php practice day 6

I learned how to create a background page today. If it fails, it will not be displayed.

Php: the following code can block php attention-level errors, that is, throw any non-Attention errors.

[Php] error_reporting (E_ALL &~ E_NOTICE );

Error_reporting (E_ALL &~ E_NOTICE );
You can use $ _ SESION after enabling session.

Session is something stored on the server. After the session is started, a session ID is sent to the browser, which is cookies.

[Php] session_start ();

Session_start ();
It doesn't matter if the browser disables cookies. You can write the session to the URL.

[Php] session_name. '='. session_id ()

Session_name. '='. session_id () is attached with the adminAction that I have written. Only the login function is supported.

[Php] <? Php
/**
*
**/
Class adminAction extends Action
{
Protected $ db = '';
Function _ construct ()
{
// Code...
/// $ Smarty-> force_compile = true;
/* $ This-> db = new MySQL ("127.0.0.1", "root", "1234", "myly", "data ");
$ This-> db-> table ('data ');*/
$ This-> db = MySQL: getClass ();
// Var_dump ($ this-> db );
$ This-> db-> connect ("127.0.0.1", "root", "1234", "myly ");
 
$ This-> db-> table ('user ');
 
Parent: :__ construct ();
}
 
Public function index ()
{
If ($ this-> is_login ()){
Echo "<script> window. location. href = 'admin. php? M = admin & a = admin'; </script> ";
} Else {
Echo "<script> window. location. href = 'admin. php? M = admin & a = login '; </script> ";
}
}
 
Private function is_login ()
{
Return $ _ SESSION ['login'];
 
}
 
Public function login ()
{
If (! Empty ($ _ POST ['username']) &! Empty ($ _ POST ['Password']) {
$ UserName = $ _ POST ['username'];
$ Password = md5 ($ _ POST ['Password']);
/* Var_dumP ($ _ POST );
Var_dump ($ password );
Var_dump ($ password );*/
If ($ _ SESSION ['userdata'] = $ this-> db-> where ("userName = '{$ userName}' and password = '{$ password }'") -> fine ()){
Echo "<script> window. location. href = 'admin. php? M = admin & a = admin'; </script> ";
$ _ SESSION ['login'] = true;

} Else {
 
Echo "Logon Failed ";
}
}
 
$ This-> display ();
}
 
Public function ulogin ()
{
Echo "<script> window. location. href = 'admin. php? M = admin & a = login '; </script> ";
Unset ($ _ SESSION );
}
 
Public function admin ()
{
If (! $ This-> is_login ()){
Echo "<script> window. location. href = 'admin. php? M = admin & a = login '; </script> ";
}
// Var_dump ($ _ SESSION );
$ This-> assign ('username', $ _ SESSION ['userdata'] ['username']);
$ This-> display ();
}
 
Function add (){
/* Var_dump ($ this-> db
-> Data (
Array ('username' => 'admin ',
'Password' => md5 ('admin '),
'Time' => time ()
))
-> Add ());
*/
}

}
?>

<? Php
/**
*
**/
Class adminAction extends Action
{
Protected $ db = '';
Function _ construct ()
{
// Code...
/// $ Smarty-> force_compile = true;
/* $ This-> db = new MySQL ("127.0.0.1", "root", "1234", "myly", "data ");
$ This-> db-> table ('data ');*/
$ This-> db = MySQL: getClass ();
// Var_dump ($ this-> db );
$ This-> db-> connect ("127.0.0.1", "root", "1234", "myly ");

$ This-> db-> table ('user ');

Parent: :__ construct ();
}

Public function index ()
{
If ($ this-> is_login ()){
Echo "<script> window. location. href = 'admin. php? M = admin & a = admin'; </script> ";
} Else {
Echo "<script> window. location. href = 'admin. php? M = admin & a = login '; </script> ";
}
}

Private function is_login ()
{
Return $ _ SESSION ['login'];

}

Public function login ()
{
If (! Empty ($ _ POST ['username']) &! Empty ($ _ POST ['Password']) {
$ UserName = $ _ POST ['username'];
$ Password = md5 ($ _ POST ['Password']);
/* Var_dumP ($ _ POST );
Var_dump ($ password );
Var_dump ($ password );*/
If ($ _ SESSION ['userdata'] = $ this-> db-> where ("userName = '{$ userName}' and password = '{$ password }'") -> fine ()){
Echo "<script> window. location. href = 'admin. php? M = admin & a = admin'; </script> ";
$ _ SESSION ['login'] = true;

} Else {

Echo "Logon Failed ";
}
}

$ This-> display ();
}

Public function ulogin ()
{
Echo "<script> window. location. href = 'admin. php? M = admin & a = login '; </script> ";
Unset ($ _ SESSION );
}

Public function admin ()
{
If (! $ This-> is_login ()){
Echo "<script> window. location. href = 'admin. php? M = admin & a = login '; </script> ";
}
// Var_dump ($ _ SESSION );
$ This-> assign ('username', $ _ SESSION ['userdata'] ['username']);
$ This-> display ();
}

Function add (){
/* Var_dump ($ this-> db
-> Data (
Array ('username' => 'admin ',
'Password' => md5 ('admin '),
'Time' => time ()
))
-> Add ());
*/
}

}
?>
Login.html used to submit the form
[Html] <Head>
<Title> log on to the background of the waterfall message board </title>
</Head>
<Body>
<Form action = "admin. php? M = admin & a = login "method =" post ">
<Input type = "text" name = "userName" value = "admin">
<Input type = "password" name = "password" value = "admin">
<Input type = "submit" value = "login">
</Form>
</Body>
</Html>

<Html>
<Head>
<Title> log on to the background of the waterfall message board </title>
</Head>
<Body>
<Form action = "admin. php? M = admin & a = login "method =" post ">
<Input type = "text" name = "userName" value = "admin">
<Input type = "password" name = "password" value = "admin">
<Input type = "submit" value = "login">
</Form>
</Body>
</Html> the admin.html

[Html] <Head>
<Title> welcome <{$ userName}> </title>
</Head>
<Body>
 
</Body>
</Html>

<Html>
<Head>
<Title> welcome <{$ userName}> </title>
</Head>
<Body>

</Body>
</Html>
This is my login function.

 

Modified mysql. class. php and added a function fine, so that the returned array is one-dimensional, which is more convenient.

[Php]/**
+ ----------------------------------------------------------
* Obtain a single record of a data table and return a one-dimensional array
+ ----------------------------------------------------------
* @ Access public
+ ----------------------------------------------------------
* @ Param
+ ----------------------------------------------------------
*/
Public function fine (){
$ Select_ SQL = 'select ';
$ Fields = isset ($ this-> query_list ['fields'])? $ This-> query_list ['fields']: '*';
$ Select_ SQL. = $ fields;
$ Select_ SQL. = 'from'. $ this-> query_list ['table']. ''';

Isset ($ this-> query_list ['join'])? ($ Select_ SQL. = $ this-> query_list ['join']): '';
Isset ($ this-> query_list ['where'])? ($ Select_ SQL. = 'where'. $ this-> query_list ['where']): '';
Isset ($ this-> query_list ['group'])? ($ Select_ SQL. = 'group by'. $ this-> query_list ['group']): '';
Isset ($ this-> query_list ['having '])? ($ Select_ SQL. = 'mysql having '. $ this-> query_list ['having']): '';
Isset ($ this-> query_list ['order'])? ($ Select_ SQL. = 'ORDER BY'. $ this-> query_list ['order']): '';
Isset ($ this-> query_list ['limit'])? ($ Select_ SQL. = '1,1 '):'';
// Echo '<br> ----->'. $ select_ SQL. '<--------- <br> ';
Return $ this-> query ($ select_ SQL) [0];
}

/**
+ ----------------------------------------------------------
* Obtain a single record of a data table and return a one-dimensional array
+ ----------------------------------------------------------
* @ Access public
+ ----------------------------------------------------------
* @ Param
+ ----------------------------------------------------------
*/
Public function fine (){
$ Select_ SQL = 'select ';
$ Fields = isset ($ this-> query_list ['fields'])? $ This-> query_list ['fields']: '*';
$ Select_ SQL. = $ fields;
$ Select_ SQL. = 'from'. $ this-> query_list ['table']. ''';

Isset ($ this-> query_list ['join'])? ($ Select_ SQL. = $ this-> query_list ['join']): '';
Isset ($ this-> query_list ['where'])? ($ Select_ SQL. = 'where'. $ this-> query_list ['where']): '';
Isset ($ this-> query_list ['group'])? ($ Select_ SQL. = 'group by'. $ this-> query_list ['group']): '';
Isset ($ this-> query_list ['having '])? ($ Select_ SQL. = 'mysql having '. $ this-> query_list ['having']): '';
Isset ($ this-> query_list ['order'])? ($ Select_ SQL. = 'ORDER BY'. $ this-> query_list ['order']): '';
Isset ($ this-> query_list ['limit'])? ($ Select_ SQL. = '1,1 '):'';
// Echo '<br> ----->'. $ select_ SQL. '<--------- <br> ';
Return $ this-> query ($ select_ SQL) [0];
}