Building array element names

[awingnut]

I have a built set of radio button INPUT tags in which the name of each set had a number appended to it (button1, button2, etc.). Now I want to loop through the buttons and get the value for each. What is the syntax for building the names? Here is what I tried that doesn't work:

$button_value=$_POST['button$i'];

I guess the $i is recognized in double quotes but not single quotes.

 

[sleipnir214]

That is correct. Strings inside single quotes are not interpolated.

Try

$_POST['button' . $i]

or

$_POST["button$i"]


I prefer the former, but that's just a style preference thing.

Want the best answers? Ask the best questions:

http://www.catb.org/~esr/faqs/smart-questions.html

TANSTAAFL!

 

[awingnut]

I guess I thought the single quotes were required for the array syntax. It works, thanks.

 

[sleipnir214]

In terms of use of strings, PHP does not differentiate between single-quoted string literals and double-quoted string literals.

It is only in how the string literals actually compose the actual string that it matters at all.

Want the best answers? Ask the best questions:

http://www.catb.org/~esr/faqs/smart-questions.html

TANSTAAFL!

 

[mikefn]

If for the regular variable, you can use this: ${"button$i"}

--
Mike FN
"8 out of 10 Owners who Expressed a Preference said Their Cats Preferred Web Programmer."