PHP Setting a SESSION Variable Name Using A Variable

Question

I would like to set the name of a $_SESSION variable to be the value of another variable. e.g.

$var = "123";
$_SESSION['$var'] = "yes";

echo $_SESSION['123'];  // Would like to echo "yes"
echo $_SESSION['$var'];  // Would also like to echo "yes"

I performed a vardump($_SESSION) and the session variable is literally set to "$_SESSION[$var]". How can I achieve the result I require?

Many Thanks.

It works [almost] exactly like an "array" .. read up on it.

user166390
– user166390

2013-02-22 03:12:27 +00:00
Commented Feb 22, 2013 at 3:12 — user166390
– user166390, Commented Feb 22, 2013 at 3:12

John Conde · Accepted Answer · 2013-02-22 03:08:08Z

8

Ditch the single quotes. They make PHP parse the $ as a literal dollar sign instead of the beginning of a variable name.

$_SESSION['$var'] = "yes";

should be:

$_SESSION[$var] = "yes";

answered Feb 22, 2013 at 3:08

John Conde

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2 Comments

Hugo Dozois Over a year ago

Or could be in double quotes of he really wants to keep the quotes or have to do concatenation (eg prefix to name)

Lee Ginger-Ninja McCarthy Over a year ago

Thanks so much. A silly error tbh. Maybe it's time to stop coding and get some sleep. lol. Thanks again.

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