param help

[_rhod]

hey, ive done something in perl that i need to do in php, and i used this for perl
$usersname=param ("username");
but it wont' work in php, i was wondering if there was a php command that did the same as param.

thanks

[matt_4013]

What's the param() function actually do in perl?

[sijis]

well, my guess through quickly looking for param() in perldoc.com is that its short for parameter. So its checking if parameter "username" exists.

i think what you might be looking for is isset()
quick description "Determine whether a variable is set"

this variable can be a querystring in a URL, a regular $var, a session, etc.... in you case you might use it like this:
$username =

more info on isset() here:
http://us2.php.net/manual/en/function.isset.php

hmm.. now that i re-read the question.. you might be looking for getting a parameter as opposed to see if the parameter is set.

In that case, depending on how you are getting the parameter (querystring in URL, POST/GET from form, $var from function/class, cookies or session) then you have different code.

quick list:
file.php?name=value
$var = $_REQUEST['name'];
echo $var; // output: value

//form stuff.... POST method
<input type="text" name="name">
$var = $POST['name'];
echo $var; // output: value
// note: for GET method form, chance $POST to $_GET

cookies and sessions are similar to above code....
look at predefined variables:
http://www.php.net/manual/en/language.variables.predefined.php

hope that's what you're looking for.

[_rhod]

it extracts the value from a text field

[_rhod]

it extracts the value from a text field

[_rhod]

//form stuff.... POST method
<input type="text" name="name">
$var = $POST['name'];
echo $var; // output: value
// note: for GET method form, chance $POST to $_GET

hope that's what you're looking for. [/B]

Thank you. You hit the nail on the head =] thanx heaps!!