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What is the difference between $message and $$message ?
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$message is variable and $$message is variable variable.
$message="hello";
$$message="world";
echo $hello; // prints world
echo ${$message} //prints world
variable variable cant be used in php superglobalarray. and
cant use in functions and within classes
| Is This Answer Correct ? | 25 Yes | 6 No |
Answer / vikram
$message="hello";
$hello="world";
echo $$message;
// will print "world"..this concept is called "variable of
variables"...
| Is This Answer Correct ? | 6 Yes | 3 No |
Answer / mohit
$message is a variable and $$message is a refrence variable
that have the refrence of $message.
| Is This Answer Correct ? | 5 Yes | 2 No |
Answer / laxmikanta pradhan
$message is variable and $$message is variable variable i.e.
$message is a variable whereas $$message is a refrence
variable having the refrence of $message.
Ex. $message="hello";
$$message="world";
echo $hello; // prints world
echo ${$message} //prints world
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / abhilash
if $message1 = "hello";
and $message = "message1";
den $$message = hello
| Is This Answer Correct ? | 6 Yes | 9 No |
Answer / keshab
$test = "example";
$temp = "test";
echo $temp // output is "test";
echo $$temp// output is "example";
thanks
| Is This Answer Correct ? | 1 Yes | 4 No |
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