Optimize date generation for batch orders

Author: layoutd

includes/Generator/Order.php

@@ -289,14 +289,15 @@ protected static function get_date_created( $assoc_args ) {
 			return $current;
 		}
 
-		$dates = array();
-		$date  = strtotime( $start );
-		while ( $date <= strtotime( $end ) ) {
-			$dates[] = date( 'Y-m-d', $date );
-			$date    = strtotime( '+1 day', $date );
-		}
-
-		return $dates[ array_rand( $dates ) ];
+		// Use timestamp-based random selection instead of building date array
+		// This is much more efficient, especially for large date ranges
+		$start_timestamp = strtotime( $start );
+		$end_timestamp   = strtotime( $end );
+		$days_between    = (int) ( ( $end_timestamp - $start_timestamp ) / DAY_IN_SECONDS );
+
+		// Generate random offset in days and add to start timestamp
+		$random_days = wp_rand( 0, $days_between );
+		return date( 'Y-m-d', $start_timestamp + ( $random_days * DAY_IN_SECONDS ) );
 	}
 
 	/**