Parse multiline pipe delimited strings

parse_multiline_pipe_delimited_string.php

/**
 * Extracts an array of key/value pairs from the input string.
 *
 * @param string $string
 *   The input string to extract values from.
 *
 * @return array
 *   An array of key/value pairs.
 */
function parse_multiline_pipe_delimited_string($string) {
  $values = [];
  $list = explode("\n", $string);
  $list = array_map('trim', $list);
  $list = array_filter($list, 'strlen');

  foreach ($list as $text) {
    // Parse pipe delimited text string and add key/value pairs to the output.
    if (preg_match('/(.*)\\|(.*)/', $text, $matches)) {
      // Trim key and value to avoid unwanted spaces issues.
      $key = trim($matches[1]);
      $value = trim($matches[2]);
      $values[$key] = $value;
    }
  }

  return $values;
}