Can i use Define function like this.........

[jeeva]

hi frnds,

 

can i declare the php function as a constant like

define("CONNECT","odbc_connect");.

 

if i used like that than it will gives the error message.i don't know we can use or should not use

 

here my code

define("CONNECT","odbc_connect");
class db
{

var $dsn="dbconnect"; //dsn
var $uname="";
var $password="";
var $con=NULL;


//db connect
function DbConnect()
{
	$this->con=CONNECT($this->dsn,$this->uname,$this->password) or die(odbc_errormsg());
	return $this->con;
}
}

 

it's gives the following error

Fatal error: Call to undefined function: connect() in c:\inetpub\wwwroot\access\class.php on line 22

 

wts up?

 

[Monkeymatt]

PHP is a scripting language and does not go through and replace constants first like pre-processor directives. To do such a thing, you would have to do it this way:

 

$CONNECT="odbc_connect";
...
$this->con=$CONNECT($this->dsn,$this->uname,$this->password) or die(odbc_errormsg());

[jeeva]

thanks  Monkeymatt

 

But if i used like that its gives the following error

 

Parse error: parse error, unexpected T_VARIABLE, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in c:\inetpub\wwwroot\access\class.php on line 18

[wildteen88]

Add curly braces around the constant eg:

 

define("CONNECT", "odb_connect");

$con = {CONNECT}('bla', 'blah, 'bla');

Now PHP should replace {CONNECT} with the constants value.

[jeeva]

No ...........its still keep telling error..

better to drop this concept i think .