I'm not sure how to write this. I have a variable called $group the value could be a,b or c. I also have variables called $a, $b and $c. How do I write something that states if $group=a then use $a, if $group=b then use $b and if $group=c then use $c. Hope that makes sense.
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Narendrasingh Sisodia
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1Possible duplicate of [Dynamic variable names in PHP](http://stackoverflow.com/questions/9257505/dynamic-variable-names-in-php) – Narendrasingh Sisodia Feb 23 '16 at 04:38
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I have updated answer below. have a look – Rahul Feb 23 '16 at 04:49
2 Answers
0
Do you want this ??
$a = "a"; // $a is variable and "a" is its value and its a string.
$b = "b";
$c = "c";
if ($group == "a") // here a is just string value not variable.
{
echo $a;
}
elseif ($group == "b")
{
echo $b;
}
else
{
echo $c;
}
Or
Variable of variables
Sometimes it is convenient to be able to have variable variable names. That is, a variable name which can be set and used dynamically. A normal variable is set with a statement such as:
<?php
$a = 'hello';
?>
A variable variable takes the value of a variable and treats that as the name of a variable. In the above example, hello, can be used as the name of a variable by using two dollar signs. i.e.
<?php
$$a = 'world';
?>
At this point two variables have been defined and stored in the PHP symbol tree: $a with contents "hello" and $hello with contents "world". Therefore, this statement:
<?php
echo "$a ${$a}";
?>
produces the exact same output as:
<?php
echo "$a $hello";
?>
i.e. they both produce: hello world.
For more info click here
0
With Rahul's help and a tiny bit of tweaking this was my working end result.
if ($group == "a")
{
$group=$a;
}
elseif ($group == "b")
{
$group=$b;
}
else
{
$group=$c;
}