/**
* Interpolates {{var.subVar}}-style based on a source array given
*
* Dimensions in the source array are accessed with a passed delimeter (Default: Dot (.))
*
* @param string $string The input string to operate on
* @param array $source The associative source array
* @param mixed $defaultValue The default value for indices that dont exist
* @param string|null $delimeter The delimeter for multi-dimension access (Default: Dot (.))
*
* @return string The interpolated string with the variables replaced with their values
*/
public static function interpolate($string, array $source, $defaultValue = null, $delimeter = null)
{
return preg_replace_callback('/\\{\\{([^\\}]+)\\}\\}/i', function ($m) use($source, $defaultValue, $delimeter) {
$resolved = ArrayUtil::resolve($source, $m[1], $defaultValue, $delimeter);
if ($resolved === null) {
return $m[0];
}
return $resolved;
}, $string);
}
