বাংলাদেশের জাতীয় পতাকা সবুজ আয়তক্ষেত্রের মধ্যে লাল বৃত্ত ও সবুজ রং বাংলাদেশের সবুজ প্রকৃতি ও তারুণ্যের প্রতীক বৃত্তের লাল রং উদীয়মান সূর্য ও স্বাধীনতা যুদ্ধে আত্মোৎসর্গকারীদের রক্তের প্রতীক। বাংলাদেশের জাতীয় পতাকার সাথে জাপানের জাতীয় পতাকা মিল রয়েছে, কিন্তু পার্থক্য হচ্ছে সবুজের জায়গায় জাপানীরা সাদা ব্যবহার করে। এছাড়া বাংলাদেশের পতাকায় লাল বৃত্তটি একপাশে একটু চাপানো হয়েছে যেন পতাকা যখন উড়বে তখন বৃত্তটি পতাকার মাঝখানে দেখা যায়।
জেনে নিই
Read more
আমাদের অল-ইন-ওয়ান মোবাইল অ্যাপের মাধ্যমে সীমাহীন শেখার সুযোগ উপভোগ করুন।
Lorem ipsum dolor, sit amet consectetur adipisicing elit. Ducimus nihil, quo, quis minus aspernatur expedita, incidunt facilis aliquid inventore voluptate dolores accusantium laborum labore a dolorum dolore omnis qui? Consequuntur sed facilis repellendus corrupti amet in quibusdam ducimus illo autem, a praesentium.
1 hour ago
Lorem ipsum dolor, sit amet consectetur adipisicing elit. Ducimus nihil, quo, quis minus aspernatur expedita, incidunt facilis aliquid inventore voluptate dolores accusantium laborum labore a dolorum dolore omnis qui? Consequuntur sed facilis repellendus corrupti amet in quibusdam ducimus illo autem, a praesentium.
1 hour ago
Lorem ipsum dolor, sit amet consectetur adipisicing elit. Ducimus nihil, quo, quis minus aspernatur expedita, incidunt facilis aliquid inventore voluptate dolores accusantium laborum labore a dolorum dolore omnis qui? Consequuntur sed facilis repellendus corrupti amet in quibusdam ducimus illo autem, a praesentium.
1 hour ago
Lorem ipsum dolor, sit amet consectetur adipisicing elit. Ducimus nihil, quo, quis minus aspernatur expedita, incidunt facilis aliquid inventore voluptate dolores accusantium laborum labore a dolorum dolore omnis qui? Consequuntur sed facilis repellendus corrupti amet in quibusdam ducimus illo autem, a praesentium.
1 hour ago
Lorem ipsum dolor, sit amet consectetur adipisicing elit. Ducimus nihil, quo, quis minus aspernatur expedita, incidunt facilis aliquid inventore voluptate dolores accusantium laborum labore a dolorum dolore omnis qui? Consequuntur sed facilis repellendus corrupti amet in quibusdam ducimus illo autem, a praesentium.
1 hour ago
Lorem ipsum dolor, sit amet consectetur adipisicing elit. Ducimus nihil, quo, quis minus aspernatur expedita, incidunt facilis aliquid inventore voluptate dolores accusantium laborum labore a dolorum dolore omnis qui? Consequuntur sed facilis repellendus corrupti amet in quibusdam ducimus illo autem, a praesentium.
1 hour ago
Lorem ipsum dolor, sit amet consectetur adipisicing elit. Ducimus nihil, quo, quis minus aspernatur expedita, incidunt facilis aliquid inventore voluptate dolores accusantium laborum labore a dolorum dolore omnis qui? Consequuntur sed facilis repellendus corrupti amet in quibusdam ducimus illo autem, a praesentium.
1 hour ago
Lorem ipsum dolor, sit amet consectetur adipisicing elit. Ducimus nihil, quo, quis minus aspernatur expedita, incidunt facilis aliquid inventore voluptate dolores accusantium laborum labore a dolorum dolore omnis qui? Consequuntur sed facilis repellendus corrupti amet in quibusdam ducimus illo autem, a praesentium.
1 hour ago
Lorem ipsum dolor, sit amet consectetur adipisicing elit. Ducimus nihil, quo, quis minus aspernatur expedita, incidunt facilis aliquid inventore voluptate dolores accusantium laborum labore a dolorum dolore omnis qui? Consequuntur sed facilis repellendus corrupti amet in quibusdam ducimus illo autem, a praesentium.
1 hour ago
Lorem ipsum dolor, sit amet consectetur adipisicing elit. Ducimus nihil, quo, quis minus aspernatur expedita, incidunt facilis aliquid inventore voluptate dolores accusantium laborum labore a dolorum dolore omnis qui? Consequuntur sed facilis repellendus corrupti amet in quibusdam ducimus illo autem, a praesentium.
1 hour ago
1 x Application (76.71%) | 78.88ms |
1 x Booting (23.28%) | 23.94ms |
update `subjects` set `view_count` = `view_count` + 1, `subjects`.`updated_at` = '2025-04-17 20:55:05' where `id` = 15994
Bindings |
|
Backtrace |
|
select `_lft`, `_rgt` from `subjects` where `id` = 15994 limit 1
Bindings |
|
Backtrace |
|
select `id`, `name`, `parent_id`, `_lft`, `_rgt`, `show_content`, `num_of_mcq`, `num_of_written`, `des_added_by`, `des_updated_by`, `author_name`, `link_subject_id`, `sub_category_id`, `main_category_id`, `slug`, `meta_og_title`, `meta_keyword`, `meta_description`, `vote`, `view_count`, `icon`, `page_type`, `chapter_name` from `subjects` where (`subjects`.`_lft` between 17575 and 17576) and `subjects`.`deleted_at` is null
Bindings |
|
Backtrace |
|
select `id`, `description`, `short_description`, `subject_id` from `subject_descriptions` where `subject_descriptions`.`subject_id` in (15994) and `subject_descriptions`.`deleted_at` is null
Backtrace |
|
select `id`, `name`, `slug` from `sub_categories` where `sub_categories`.`id` in (4878) and `sub_categories`.`deleted_at` is null
Backtrace |
|
select `id`, `user_id`, `completeable_type`, `completeable_id`, `complete_progress`, `is_complete` from `completes` where `completes`.`completeable_id` in (15994) and `completes`.`completeable_type` = 'App\\Models\\Subject'
Bindings |
|
Backtrace |
|
select `id`, `name`, `parent_id`, `_lft`, `_rgt`, `show_content`, `des_added_by`, `des_updated_by`, `author_name`, `link_subject_id` from `subjects` where `subjects`.`id` in (11380) and `subjects`.`deleted_at` is null
Backtrace |
|
select `id`, `description`, `short_description`, `subject_id` from `subject_descriptions` where `subject_descriptions`.`subject_id` in (11380) and `subject_descriptions`.`deleted_at` is null
Backtrace |
|
select `id`, `name`, `avatar` from `users` where `users`.`id` in (33722) and `users`.`deleted_at` is null
Backtrace |
|
select * from (select `questions`.`id`, `questions`.`subject_id`, `questions`.`category_id`, `questions`.`sub_category_id`, `questions`.`board_exam_id`, `questions`.`passage_id`, `questions`.`question_type`, `questions`.`question`, `questions`.`is_duplicate`, `questions`.`status`, `questions`.`image`, `subjectables`.`subject_id` as `pivot_subject_id`, `subjectables`.`subjectable_id` as `pivot_subjectable_id`, `subjectables`.`subjectable_type` as `pivot_subjectable_type`, row_number() over (partition by `subjectables`.`subject_id` order by `questions`.`created_at` desc) as `laravel_row` from `questions` inner join `subjectables` on `questions`.`id` = `subjectables`.`subjectable_id` where `subjectables`.`subject_id` in (15994) and `subjectables`.`subjectable_type` = 'App\\Models\\Question' and `questions`.`status` = 'active' and `questions`.`deleted_at` is null) as `laravel_table` where `laravel_row` <= 5 order by `laravel_row`
Bindings |
|
Backtrace |
|
select `id`, `question_id`, `option_1`, `option_2`, `option_3`, `option_4`, `option_5`, `image_option`, `image_question`, `answer` from `question_options` where `question_options`.`question_id` in (246789, 246895, 248375, 252112, 252587) and `question_options`.`deleted_at` is null
Backtrace |
|
select `id`, `name`, `slug` from `subjects` where `subjects`.`id` in (79) and `subjects`.`deleted_at` is null
Backtrace |
|
select `subjects`.`id`, `subjects`.`name`, `subjects`.`slug`, `subjectables`.`subjectable_id` as `pivot_subjectable_id`, `subjectables`.`subject_id` as `pivot_subject_id`, `subjectables`.`subjectable_type` as `pivot_subjectable_type`, `subjectables`.`created_user_id` as `pivot_created_user_id`, `subjectables`.`deleted_at` as `pivot_deleted_at`, `subjectables`.`status` as `pivot_status`, `subjectables`.`created_at` as `pivot_created_at`, `subjectables`.`updated_at` as `pivot_updated_at` from `subjects` inner join `subjectables` on `subjects`.`id` = `subjectables`.`subject_id` where `subjectables`.`subjectable_id` in (246789, 246895, 248375, 252112, 252587) and `subjectables`.`subjectable_type` = 'App\\Models\\Question' and `subjects`.`deleted_at` is null
Bindings |
|
Backtrace |
|
select `id`, `title`, `passage` from `passages` where `passages`.`id` in (0) and `passages`.`deleted_at` is null
Backtrace |
|
select * from `subjects` where `subjects`.`id` = 15994 and `subjects`.`deleted_at` is null limit 1
Bindings |
|
Backtrace |
|
select `id`, `name`, `slug`, `parent_id`, `_lft`, `_rgt` from `subjects` where (17576 between `subjects`.`_lft` and `subjects`.`_rgt` and `subjects`.`id` <> 15994) and `subjects`.`deleted_at` is null order by `_lft` asc
Bindings |
|
Backtrace |
|
select * from `subjects` where `subjects`.`id` = 15994 and `subjects`.`deleted_at` is null limit 1
Bindings |
|
Backtrace |
|
select `id`, `name`, `parent_id`, `_lft`, `_rgt`, `slug`, `meta_og_title`, `meta_keyword`, `meta_description` from `subjects` where `subjects`.`id` = 15993 and `subjects`.`deleted_at` is null limit 1
Bindings |
|
Backtrace |
|
select `id`, `description`, `subject_id` from `subject_descriptions` where `subject_descriptions`.`subject_id` in (15993) and `subject_descriptions`.`deleted_at` is null
Backtrace |
|
select * from `mediables` where `mediable_type` = 'App\\Models\\Subject' and `mediable_id` in (15994)
Bindings |
|
Backtrace |
|
select `videos`.`video_src_url`, `mediables`.`mediable_id` as `chapter_id` from `videos` inner join `mediables` on `mediables`.`mediable_id` = `videos`.`id` where `videos`.`id` = 0 and `videos`.`video_src` = 'youtube' and `videos`.`deleted_at` is null
Bindings |
|
Backtrace |
|
select `id`, `name`, `main_category_id`, `slug` from `subjects` where `id` <> 15994 and `parent_id` = 15993 and `main_category_id` = 3 and `subjects`.`deleted_at` is null limit 5
Bindings |
|
Backtrace |
|
select * from `package_plans` where `status` = 'active' and `package_plans`.`deleted_at` is null
Bindings |
|
Backtrace |
|
200
[]
[]
0 of 0array:21 [▼ "x-https" => array:1 [▶ 0 => "1" ] "cookie" => array:1 [▶ 0 => "XSRF-TOKEN=eyJpdiI6IlplYStNMmYrQjlBdlZVTEpnMTZGMXc9PSIsInZhbHVlIjoiUFVMS0YvUVovbFA1MTJXQXZTSmhhYWhtOWNrcGhLNEdxRE4xWVhuOGlTS0thQlBiT1M5amlYcjV2SDBTOWFkVWE1ODVLUFpZcDhBU0x1NVBuRStGQWprdS8zK05EaVB0TUtFSGp1dnI0QnMzYlhYRnk4YlVyVE9GUTRYVDFUTXAiLCJtYWMiOiIxZjExZDRjMTNjYTVkYzZhYzM3MmMxNWM4NzdmZjU1ZWZiNTJjYWM5YjMyOWYwODMyYjMxM2E4NzE4ZDIxMDkxIiwidGFnIjoiIn0%3D; satt_academy_session=eyJpdiI6IllBVnFrRDh2YU85Uk5vRXdFUThIY0E9PSIsInZhbHVlIjoiQzZtY3hNYVIweTd6czViTDk0eHltWk1qUnVjUHdPTzVUNUMvUnVOc0JSZy9xaGRYS09odUN6cnRRUldzUXNCeGhhOEduUVNjd1ZDOEhpZzVKVlpKRFd3MGtHNnp1Q0FEcndLSE9sWS9kdnMyV1pXbzZzMzgvSDZCUDluMVZ3Qk4iLCJtYWMiOiJkZmZlMDE3NDJlMTFjZmM0YmM5N2QxMmEzMmUwOTZlMTAwY2ZhZWE0OGFkMTAwODUyMDllMzRhNjRjMDdmMzE5IiwidGFnIjoiIn0%3D ◀XSRF-TOKEN=eyJpdiI6IlplYStNMmYrQjlBdlZVTEpnMTZGMXc9PSIsInZhbHVlIjoiUFVMS0YvUVovbFA1MTJXQXZTSmhhYWhtOWNrcGhLNEdxRE4xWVhuOGlTS0thQlBiT1M5amlYcjV2SDBTOWFkVWE1ODVLU ▶" ] "sec-fetch-dest" => array:1 [▶ 0 => "document" ] "sec-fetch-user" => array:1 [▶ 0 => "?1" ] "sec-fetch-mode" => array:1 [▶ 0 => "navigate" ] "sec-fetch-site" => array:1 [▶ 0 => "none" ] "accept" => array:1 [▶ 0 => "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7" ] "user-agent" => array:1 [▶ 0 => "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)" ] "upgrade-insecure-requests" => array:1 [▶ 0 => "1" ] "sec-ch-ua-platform" => array:1 [▶ 0 => ""Windows"" ] "sec-ch-ua-mobile" => array:1 [▶ 0 => "?0" ] "sec-ch-ua" => array:1 [▶ 0 => ""HeadlessChrome";v="129", "Not=A?Brand";v="8", "Chromium";v="129"" ] "cache-control" => array:1 [▶ 0 => "no-cache" ] "pragma" => array:1 [▶ 0 => "no-cache" ] "x-real-ip" => array:1 [▶ 0 => "18.223.149.135" ] "x-forwarded-server" => array:1 [▶ 0 => "debugerror.xyz" ] "x-forwarded-proto" => array:1 [▶ 0 => "https" ] "x-forwarded-port" => array:1 [▶ 0 => "443" ] "x-forwarded-host" => array:1 [▶ 0 => "debugerror.xyz" ] "x-forwarded-for" => array:1 [▶ 0 => "18.223.149.135" ] "host" => array:1 [▶ 0 => "debugerror.xyz" ] ]
0 of 0array:2 [▼ "XSRF-TOKEN" => "0EIokUIaipO8j6tExxxRaJVeHXaptpbKg6ZycnLf" "satt_academy_session" => "gCjaI7r9QIyF9ZoTm9uhZe9Uo1YGGmXiGz4lveKy" ]
0 of 0array:7 [▼ "content-type" => array:1 [▶ 0 => "text/html; charset=UTF-8" ] "cache-control" => array:1 [▶ 0 => "no-cache, private" ] "date" => array:1 [▶ 0 => "Thu, 17 Apr 2025 14:55:05 GMT" ] "x-ratelimit-limit" => array:1 [▶ 0 => "60" ] "x-ratelimit-remaining" => array:1 [▶ 0 => "31" ] "set-cookie" => array:2 [▶ 0 => "XSRF-TOKEN=eyJpdiI6IlFyYlFIZHJGZHRYS2dHVDc5ZEVkdWc9PSIsInZhbHVlIjoia3pMZUwxelM1bUZEeVNtRmpibkRHcXA2MUJQZ0ZyRjZJYzJWQ0ZKNnpLVVlBVXV6Z3pJRnAxdmJac2lTbHhmVit5RDVDRW56S2d4YXhoWitvb1FMVDVHQ2NiaHZueDlaOTJFNkl2VzhPKy85U0ZINElxK1FoSHdhQy9CMjlaSXciLCJtYWMiOiIzNGYwMTgxZmIzMDk0MjA1NGMyOGQ4Yzg4YTg1MzczZjc4OGFjMTc5YjJhZDJmYzNhNzA0MDc1ZWFhZDkzZDdjIiwidGFnIjoiIn0%3D; expires=Fri, 18 Apr 2025 14:55:05 GMT; Max-Age=86400; path=/; secure ◀XSRF-TOKEN=eyJpdiI6IlFyYlFIZHJGZHRYS2dHVDc5ZEVkdWc9PSIsInZhbHVlIjoia3pMZUwxelM1bUZEeVNtRmpibkRHcXA2MUJQZ0ZyRjZJYzJWQ0ZKNnpLVVlBVXV6Z3pJRnAxdmJac2lTbHhmVit5RDVDR ▶" 1 => "satt_academy_session=eyJpdiI6ImEzay9xemtqSjVhVlF3QzQzQ1c3V0E9PSIsInZhbHVlIjoiUGlMRG5zMEZURnhBVS91TE11cnZEdUMraHhHRXorTVVsQUN3Qy9SQzVEc1hBQlRSTmhYK2l6eU5zZlVJbHlwMjNNZ3RFOHRmWXNXVUxHcWovVXl3ck92dS9XenBIa2dGVENjTHVsMVRVaUNZb1BYMllqV0drWVdiSkNoS1ZFcnMiLCJtYWMiOiIxOWU2ODdlOGEwOTE1Y2U2YzFlZTk1YWNjMDEyOTI2ZTE3ODAxYjY4MTIyNGQ2NzdhZjVmOTRlMGQyOTQ2NDJiIiwidGFnIjoiIn0%3D; expires=Fri, 18 Apr 2025 14:55:05 GMT; Max-Age=86400; path=/; secure; httponly ◀satt_academy_session=eyJpdiI6ImEzay9xemtqSjVhVlF3QzQzQ1c3V0E9PSIsInZhbHVlIjoiUGlMRG5zMEZURnhBVS91TE11cnZEdUMraHhHRXorTVVsQUN3Qy9SQzVEc1hBQlRSTmhYK2l6eU5zZlVJbHl ▶" ] "Set-Cookie" => array:2 [▶ 0 => "XSRF-TOKEN=eyJpdiI6IlFyYlFIZHJGZHRYS2dHVDc5ZEVkdWc9PSIsInZhbHVlIjoia3pMZUwxelM1bUZEeVNtRmpibkRHcXA2MUJQZ0ZyRjZJYzJWQ0ZKNnpLVVlBVXV6Z3pJRnAxdmJac2lTbHhmVit5RDVDRW56S2d4YXhoWitvb1FMVDVHQ2NiaHZueDlaOTJFNkl2VzhPKy85U0ZINElxK1FoSHdhQy9CMjlaSXciLCJtYWMiOiIzNGYwMTgxZmIzMDk0MjA1NGMyOGQ4Yzg4YTg1MzczZjc4OGFjMTc5YjJhZDJmYzNhNzA0MDc1ZWFhZDkzZDdjIiwidGFnIjoiIn0%3D; expires=Fri, 18-Apr-2025 14:55:05 GMT; path=/; secure ◀XSRF-TOKEN=eyJpdiI6IlFyYlFIZHJGZHRYS2dHVDc5ZEVkdWc9PSIsInZhbHVlIjoia3pMZUwxelM1bUZEeVNtRmpibkRHcXA2MUJQZ0ZyRjZJYzJWQ0ZKNnpLVVlBVXV6Z3pJRnAxdmJac2lTbHhmVit5RDVDR ▶" 1 => "satt_academy_session=eyJpdiI6ImEzay9xemtqSjVhVlF3QzQzQ1c3V0E9PSIsInZhbHVlIjoiUGlMRG5zMEZURnhBVS91TE11cnZEdUMraHhHRXorTVVsQUN3Qy9SQzVEc1hBQlRSTmhYK2l6eU5zZlVJbHlwMjNNZ3RFOHRmWXNXVUxHcWovVXl3ck92dS9XenBIa2dGVENjTHVsMVRVaUNZb1BYMllqV0drWVdiSkNoS1ZFcnMiLCJtYWMiOiIxOWU2ODdlOGEwOTE1Y2U2YzFlZTk1YWNjMDEyOTI2ZTE3ODAxYjY4MTIyNGQ2NzdhZjVmOTRlMGQyOTQ2NDJiIiwidGFnIjoiIn0%3D; expires=Fri, 18-Apr-2025 14:55:05 GMT; path=/; secure; httponly ◀satt_academy_session=eyJpdiI6ImEzay9xemtqSjVhVlF3QzQzQ1c3V0E9PSIsInZhbHVlIjoiUGlMRG5zMEZURnhBVS91TE11cnZEdUMraHhHRXorTVVsQUN3Qy9SQzVEc1hBQlRSTmhYK2l6eU5zZlVJbHl ▶" ] ]
0 of 0array:3 [▼ "_token" => "0EIokUIaipO8j6tExxxRaJVeHXaptpbKg6ZycnLf" "_previous" => array:1 [▶ "url" => "https://debugerror.xyz/admission/%E0%A6%9C%E0%A6%BE%E0%A6%A4%E0%A7%80%E0%A7%9F-%E0%A6%AA%E0%A6%A4%E0%A6%BE%E0%A6%95%E0%A6%BE-45990" ] "_flash" => array:2 [▶ "old" => [] "new" => [] ] ]