Parsing only some variables with heredoc or nowdoc

Question

Using heredoc or nowdoc, how could I create $sting?

$x_value=2;
$string='$x='.$x_value.';';
exit($string);  //$x=2;

PS. I am aware of the slippery slope of script like this

Without even needing to use heredoc/nowdoc `$string="\$x={$x_value};";` — Mark Baker, Jul 26 '15 at 17:03
Thanks Mark, but I showed just a very small example, and wanted to use heredoc. — user1032531, Jul 26 '15 at 17:03
@Mark. Thanks. Escaped it just like you showed it, and it works perfect! — user1032531, Jul 26 '15 at 17:05
On this site, we discourage answers being edited into questions. Instead, you're encouraged to post an answer to your own question. That way, people can see at a glance that the question has an answer. — IMSoP, Jul 26 '15 at 17:07
@IMSoP I will edit it. Just didn't want to take credit for an answer which Mark's comment was the inspiration. — user1032531, Jul 26 '15 at 17:10

score 0 · Answer 1 · answered Jul 26 '15 at 17:10

0

Per Mark's comment, the value which shouldn't be parsed should be escaped:

$x_value=2;
$string = <<<EOD
\$x=$x_value;
EOD;
exit($string);

answered Jul 26 '15 at 17:10

user1032531

1 Answers1