Question on $_POST

[jdadwilson]

In several post on this forum and other places I have noted the use of $_POST[something] (no quotes), $_POST['something'] (single quote), and $_POST["something"] (double quote). Which is correct, or does it matter?

[markjoe]

While I always assumed it needed to be quoted, I just tested it and on my server it made no difference.

For ease of testing, I tested $_GET, but I'd assume $_POST to react the same way.

echo $_GET[x]

echo $_GET['x']

echo $_GET["x"]

All 3 printed the value.

[trq]

You can use either single or double quotes. The associative array indexes are simply strings, so either will do, just as within php.

 

Not using any quotes will generate notices because php will first search the global namespace looking for a constant. When it can't find that constant php is smart enough to to try a string with the same value.

[DeadEvil]

print_r($_GET);

echo $_GET['x']
echo $_GET["x"]

 

OR

 

print_r($_POST);

echo $_POST['x']
echo $_POST["x"]

[JayBachatero]

$_GET[x] is mostly seen when used in a string.

 

echo "Hello, $_GET[name] blah...";
mysql_query("SELECT * FROM table WHERE blah = $_GET[blah]');