php - convert single quoted string to double quoted

Question

Been searching here and google for over an hour, can\'t seem to find the answer to this.

I have a string returned from a database query which contains variables, how

Answer 1

PHP does not have a standard safe way to do this, right now. There has been an open feature request for years asking for it: http://bugs.php.net/bug.php?id=43901

One of the comments on the ticket offers a regex to do simple $foo and ${foo} substitution:

function stringExpand($subject, array $vars) {
  foreach ($vars as $name => $value) {
    $subject = preg_replace(sprintf('/\$\{?%s\}?/', $name), $value, $subject);
  }
  return $subject;
}