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I have a PHP script that will generate <input>s dynamically, so I was wondering if I needed to filter any characters in the name attribute.
I know that the name has to start with a letter, but I don’t know any other rules. I figure square brackets must be allowed, since PHP uses these to create arrays from form data. How about parentheses? Spaces?
The only real restriction on what characters can appear in form control names is when a form is submitted with GET
“The “get” method restricts form data set values to ASCII characters.” reference
There’s a good thread on it here.