PHP $_GET variable is throwing me an error?

Question

I have an input box that looks like this


I am trying to retrieve that value with

echo $_GET['keywords[like]'];

but it keeps throwing an error
Notice: Undefined index: keywords[like]

what can I do about this?

Answer 1

You get the error because your php processes the keywords[like] name as a multidimensional array.



so to access the get variable you need:



echo $_GET['keywords']['like'];

Answer 2

I think you get the error because:



Since you are using $_GET method, you have to put that method in the form. Such as:

Edit:

Something else I forgot to mention. When your passing an array from your form fields, you can't catch it like that:

$_GET['keywords[like]'];



PHP knows that's an array, so you have to pass it like:

$_GET['keywords'][like];



and so on.



To catbertnc:

I'm pretty sure that "id" is only used for styling purposes [ie. CSS] it doesn't pass anything to the GET/POST methods, so you have to use the "name" attribute.



B7x0

Answer 3

Try this.





Then echo $_GET['keywords-like'];



I believe $_GET bases the info on the tag's ID, not the name. Also, the brackets in the id and name may cause issues.