How to set a variable to a string?

Question

There is any possibility making something like that using PHP?

<?php

$number = 1;

$str_$number = "BlahBlah";

// and make this: $str_1 = "BlahBlah";

echo $str_1;

?>

Answer 1

<?php
$number = 1;
${'str_'.$number} = 'foobar';
echo $str_1;//foobar

Answer 2

<?php
$number = 1;
$value = 'str_' . $number;
$$value = 'blahblah';
echo $str_1;
?>

Answer 3

Try

<?php
$number = 1;
${'str_' . $number} = 'foobar';
?>

Answer 4

You can also try

$number = 1;
eval('$str_'.$number.' = "foobar";');
echo $str_1;