PHP - Accessing variables dynamically

Question

Is there a way, in PHP, to change which variable is being changed based on another factor. Example:

$str1 = "The string is 1";
$str2 = "The string is 2";
$str3 = "The string is 3";
$X = 3;
echo $strX;

>> "The string is 3."

Edit: Thanks that's exactly what I needed :)

Anna Gabrielyan · Accepted Answer · 2016-02-14 20:39:14Z

5

<?php
$str1 = "The string is 1";
$str2 = "The string is 2";
$str3 = "The string is 3";
$X = 3;
echo ${"str".$X};
?>

1 Comment

Little explanation will help to future visitors.

Adam Copley · Accepted Answer · 2016-02-14 18:54:27Z

3

I think you are looking for

  $str1 = "The string is 1";
  $str2 = "The string is 2";
  $str3 = "The string is 3";
  $X = "str2";
  echo ${$X};

You could also use

   $str1 = "The string is 1";
   $str2 = "The string is 2";
   $str3 = "The string is 3";
   $X = "2";
   echo ${"str".$X};

answered Feb 14, 2016 at 18:48

Adam Copley

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