function backup_migrate_to_bytes in Backup and Migrate 7.3

Helper function for byte conversion.

See also

README.txt

http://php.net/manual/en/ini.core.php#ini.memory-limit

2 calls to backup_migrate_to_bytes()

backup_migrate_perform_backup in ./backup_migrate.module

Perform a backup with the given settings.

BmTestBasics::testBackupMigrateToBytes in tests/BmTestBasics.test

Confirm backup_migrate_to_bytes() works.

File

./backup_migrate.module, line 1553

Backup and restore databases for Drupal.

Code

function backup_migrate_to_bytes($from) {
  $passes_sanity_check = preg_match('/^(-1|[0-9]+|[0-9]*(\\.[0-9]+)?[mg])$/i', $from);
  if (!$passes_sanity_check) {
    return 0;
  }
  if ($from === '-1') {
    return -1;
  }
  $number = substr($from, 0, -1);
  $unit = strtoupper(substr($from, -1));
  switch ($unit) {
    case "M":
      return $number * pow(1024, 2);
      break;
    case "G":
      return $number * pow(1024, 3);
      break;
    default:
      return $number * pow(1024, 2);
  }
}