php craete dynamic variable code example

Example 1: php variables

<?php
  $string = 'string';
  $number = 1;
?>

Example 2: php get variable by string name

${$variableName} or $$variableName;

//example:

$variableName = 'foo';
$foo = 'bar';

// The following are all equivalent, and all output "bar":
echo $foo;
echo ${$variableName};
echo $$variableName;