{
    "timestamp": "2026-09-23 07:04:22",
    "level": "INFO",
    "function": "enrollUsersFromEnglishClassroomExec",
    "course_id": 213,
    "message": "enrollUsersFromEnglishClassroomExec started for course_id=213, mode=batch",
    "memory_usage": "14 MB",
    "peak_memory": "14 MB"
}
{
    "timestamp": "2026-09-23 07:04:22",
    "level": "INFO",
    "function": "enrollUsersFromEnglishClassroomExec",
    "course_id": 213,
    "message": "Found 72 users to enroll",
    "memory_usage": "14 MB",
    "peak_memory": "14 MB"
}
{
    "timestamp": "2026-09-23 09:26:20",
    "level": "INFO",
    "function": "enrollUsersFromEnglishClassroomExec",
    "course_id": 213,
    "message": "enrollUsersFromEnglishClassroomExec started for course_id=213, mode=batch",
    "memory_usage": "6 MB",
    "peak_memory": "6 MB"
}
{
    "timestamp": "2026-09-23 09:26:20",
    "level": "INFO",
    "function": "enrollUsersFromEnglishClassroomExec",
    "course_id": 213,
    "message": "Found 72 users to enroll",
    "memory_usage": "6 MB",
    "peak_memory": "6 MB"
}
{
    "timestamp": "2026-09-23 09:26:45",
    "level": "ERROR",
    "function": "enrollUsersFromEnglishClassroomExec",
    "course_id": 213,
    "message": "enrollUsersFromEnglishClassroomExec fatal error: Undefined variable $batchInsertLogs | \/var\/www\/html\/lms_hocmai\/storage\/app\/temp_enroll_users_6a9a2d3f1c360.php:106",
    "memory_usage": "6 MB",
    "peak_memory": "6 MB"
}