Question

this is a very normal question, but i think i should clear my confusion.
in php form we usually write

<form method="POST" .../>

as we retrive data via $_POST[''];
so if i write

<form method="post" .../>

then can we retrieve data via $_post[''];

i just want to know which is better and suggested way to write method value..“post” or “POST”

thanks

Answer 1

It makes no difference at all. It is purely a question of style. I personally prefer to use all lower case. It’s easier to type and makes it easier to convert to XHTML, which requires lower case, should you ever choose to convert. This faq entry covers lower case vs upper case in a bit more detail. Quoting:

In HTML, element and attribute names
in tags are case insensitive, so it
doesn’t matter. The choice is just a
matter of style and personal
preference. (You may have noticed that
this FAQ is not absolutely consistent
in capitalization.) Many people prefer
upper case, which makes the tags
“stand out” more amongst the text, and
makes it easier to find element or
attribute names using an editor’s
search function. Others prefer lower
case, which makes the tags “stand out”
less amongst the text, and which is
required by XHTML.

Note that some attribute values are
case sensitive. For example, <OL
TYPE="A"> and <ol type="A"> are the
same, but <ol type="a"> is different
from either of them. (For clearer
communication, it’s worth getting the
terminology right. In this example, OL
is the element, TYPE is the attribute
name, and A or a is the attribute
value. The tag is <OL TYPE="A">.)

Entity names like   are sometimes
incorrectly referred to as tags. They
are all case sensitive. For example,
É and é are two
different and valid entities, and
while   is a valid entity, &NBSP;
is invalid.

Note that XHTML requires all element
and attribute names to be in lower
case.

Note that $_POST must be uppercase, but this has no relation to case used in the HTML.