about mysql_select_db

[qasaa]

hi,

 

i came across some code like:

$db='';
.
.
.
mysql_select_db($db) or die("SomeText");

 

As you can see $db parameter is empty. What database name will "mysql_select_db" function use?

 

 

[Maq]

What database name will "mysql_select_db" function use?

It will use the empty string and return FALSE if it doesn't find the DB.  Are you sure that it's not resigning $db somewhere?

[qasaa]

It is empty. Does it give an error if we dont specify a database name?

[Maq]

It is empty. Does it give an error if we dont specify a database name?

What is?

[matthew9090]

go into phpmyadmin or whatever you use and see what the database name is then do this:

 

mysql_connect("hostname", "user", "pass") or die("could not connect");
mysql_select_db("database_name") or die("could not connect to the database");

 

if your using a local server the connect normally looks like this:

 

mysql_connect("localhost", "root", "");

[qasaa]

can you pls check this link : http://www.phpeasystep.com/phptu/24.html

 

There is a config.php file in Step 5.

[Maq]

That code is telling you to provide YOUR credentials, hence the comments:

$host="localhost"; // Host name
$username=""; // Mysql username
$password=""; // Mysql password
$db_name=""; // Database name 

[qasaa]

oh, ok now.

i am a beginner

[matthew9090]

search on google for php tutorials.

 

like w3schools or tizag

[qasaa]

thanks for your kind help.

[Maq]

thanks for your kind help.

Sure, if you're still having trouble with the tutorial/script just come back and ask.  You can mark threads resolved (bottom right button, I believe).

[Pikachu2000]

can you pls check this link : http://www.phpeasystep.com/phptu/24.html

 

There is a config.php file in Step 5.

 

Please don't use that site as a learning resource. Their code is badly outdated.