$_POST[$value] not working

[scrubbicus]

It won't let me grab the value I'm trying to grab $_POST['email'] in this instance but I'm using a dynamic form that passes the key that was edited through $_POST['key'] which I do $key = $_POST['key'] (so now if email was edited $key = 'email' and then the value comes through $_POST['whatever value it was'] which I try to catch like this $value = $_POST[$key] but it says that index 'email' does not exist. but I can do this $value = $_POST['email'] and I can echo $key. so both of those are valid but the whole $_POST[$key] doesn't work.

 

any help is apprecieated thanks.

[steveangelis]

Can you show us the code?

[madspof]

erm im not sure which bit of code to show so could you just tell me how you pass a variable from the php file calling the php class to the actualy php class being used ?

[Maq]

It won't let me grab the value I'm trying to grab $_POST['email'] in this instance but I'm using a dynamic form that passes the key that was edited through $_POST['key'] which I do $key = $_POST['key'] (so now if email was edited $key = 'email' and then the value comes through $_POST['whatever value it was'] which I try to catch like this $value = $_POST[$key] but it says that index 'email' does not exist. but I can do this $value = $_POST['email'] and I can echo $key. so both of those are valid but the whole $_POST[$key] doesn't work.

 

any help is apprecieated thanks.

 

Huh?