$this->mTrxAutomatic = ( $mode === self::TRANSACTION_INTERNAL );
$this->mTrxAutomaticAtomic = false;
$this->mTrxAtomicLevels = [];
- $this->mTrxShortId = wfRandomString( 12 );
+ $this->mTrxShortId = sprintf( '%06x', mt_rand( 0, 0xffffff ) );
$this->mTrxWriteDuration = 0.0;
$this->mTrxWriteQueryCount = 0;
$this->mTrxWriteAdjDuration = 0.0;