Here is a simple function I wrote to parse record-jar data. I need it in a php5.3 application to validate bcp47 language tags. Any suggestions on how I can improve it?

/**
 * Quick script to parse any record-jar data into an array.
 *
 * In particular, this is of use to someone trying to validate bcp47 language codes.
 * @see http://tools.ietf.org/search/bcp47#section-3.1.1
 */
function parse_record_jar($record_jar_string) {
  $records = array();
  $record = array();
  foreach(explode('%%', $record_jar_string) as $recordstr) {
    array_splice($record, null); // truncate $record
    foreach(array_filter(explode("\n", $recordstr)) as $line) {
      $parts = array_map('trim', explode(":", $line, 2));
      if (count($parts) === 2) {
        list($key, $value) = $parts;
      } else {
        // $key retains its value from the previous iteration.
        $value = $parts[0];
      }
      if (!isset($record[$key])) {
        $record[$key] = '';
      }
      $record[$key] .= $value;
    }
    $records[] = $record;
  }
  return $records;
}

Here is a simple function I wrote to parse record-jar data. I need it in a php5.3 application to validate bcp47 language tags. It converts the language subtag registry among other things, into a nested php array. Any suggestions on how I can improve it?

/**
 * Quick script to parse any record-jar data into an array.
 *
 * In particular, this is of use to someone trying to validate bcp47 language codes.
 * @see http://tools.ietf.org/search/bcp47#section-3.1.1
 */
function parse_record_jar($record_jar_string) {
  $records = array();
  $record = array();
  foreach(explode('%%', $record_jar_string) as $recordstr) {
    array_splice($record, null); // truncate $record
    foreach(array_filter(explode("\n", $recordstr)) as $line) {
      $parts = array_map('trim', explode(":", $line, 2));
      if (count($parts) === 2) {
        list($key, $value) = $parts;
      } else {
        // $key retains its value from the previous iteration.
        $value = $parts[0];
      }
      if (!isset($record[$key])) {
        $record[$key] = '';
      }
      $record[$key] .= $value;
    }
    $records[] = $record;
  }
  return $records;
}

Here is a simple function I wrote to parse record-jar data. I need it in a php5.3 application to validate bcp47 language tags. Any suggestions how I can improve it?

/**
 * Quick script to parse any record-jar data into an array.
 *
 * In particular, this is of use to someone trying to validate bcp47 language codes.
 * @see http://tools.ietf.org/search/bcp47#section-3.1.1
 */
function parse_record_jar($record_jar_string) {
  $records = array();
  $record = array();
  foreach(explode('%%', $record_jar_string) as $recordstr) {
    array_splice($record, null); // truncate $record
    foreach(array_filter(explode("\n", $recordstr)) as $line) {
      $parts = array_map('trim', explode(":", $line, 2));
      if (count($parts) === 2) {
        list($key, $value) = $parts;
      } else {
        // $key retains its value from the previous iteration.
        $value = $parts[0];
      }
      if (!isset($record[$key])) {
        $record[$key] = '';
      }
      $record[$key] .= $value;
    }
    $records[] = $record;
  }
  return $records;
}

Here is a simple function I wrote to parse record-jar data. I need it in a php5.3 application to validate bcp47 language tags. Any suggestions on how I can improve it?

/**
 * Quick script to parse any record-jar data into an array.
 *
 * In particular, this is of use to someone trying to validate bcp47 language codes.
 * @see http://tools.ietf.org/search/bcp47#section-3.1.1
 */
function parse_record_jar($record_jar_string) {
  $records = array();
  $record = array();
  foreach(explode('%%', $record_jar_string) as $recordstr) {
    array_splice($record, null); // truncate $record
    foreach(array_filter(explode("\n", $recordstr)) as $line) {
      $parts = array_map('trim', explode(":", $line, 2));
      if (count($parts) === 2) {
        list($key, $value) = $parts;
      } else {
        // $key retains its value from the previous iteration.
        $value = $parts[0];
      }
      if (!isset($record[$key])) {
        $record[$key] = '';
      }
      $record[$key] .= $value;
    }
    $records[] = $record;
  }
  return $records;
}