Lỗi là lỗi hoặc lỗi trong một chương trình. Nó có thể là một số loại. Lỗi có thể xảy ra do sai cú pháp hoặc sai logic. Đó là một loại lỗi hoặc tình trạng hiểu biết sai về mã
Có nhiều loại lỗi khác nhau trong PHP nhưng về cơ bản có bốn loại lỗi chính
- Lỗi phân tích cú pháp hoặc Lỗi cú pháp. Là loại lỗi do người lập trình thực hiện trong mã nguồn của chương trình. Lỗi cú pháp được bắt bởi trình biên dịch. Sau khi sửa lỗi cú pháp, trình biên dịch sẽ biên dịch mã và thực thi nó. Lỗi phân tích cú pháp có thể do dấu ngoặc kép không đóng, dấu ngoặc đơn bị thiếu hoặc thừa, dấu ngoặc nhọn không đóng, thiếu dấu chấm phẩy, v.v.
Ví dụ.PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
2PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
3PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
4____45PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
6PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
0PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
1PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
6PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
3PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
3PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
6PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
3PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
7PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
6PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
9Lỗi
PHP Parse error: syntax error, unexpected '=' in /home/18cb2875ac563160a6120819bab084c8.php on line 3
Giải trình. Chương trình trên thiếu dấu $ ở dòng 3 nên báo lỗi
- Lỗi nghiêm trọng. Đây là loại lỗi mà trình biên dịch PHP hiểu mã PHP nhưng nó nhận ra một chức năng không được khai báo. Điều này có nghĩa là chức năng được gọi mà không có định nghĩa của chức năng.
Ví dụ.PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
2PHP Warning: include[gfg.php]: failed to open stream: No such file or directory in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5 PHP Warning: include[]: Failed opening 'gfg.php' for inclusion [include_path='.:/usr/share/php'] in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
1PHP Warning: include[gfg.php]: failed to open stream: No such file or directory in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5 PHP Warning: include[]: Failed opening 'gfg.php' for inclusion [include_path='.:/usr/share/php'] in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
2PHP Warning: include[gfg.php]: failed to open stream: No such file or directory in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5 PHP Warning: include[]: Failed opening 'gfg.php' for inclusion [include_path='.:/usr/share/php'] in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
3PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
3PHP Warning: include[gfg.php]: failed to open stream: No such file or directory in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5 PHP Warning: include[]: Failed opening 'gfg.php' for inclusion [include_path='.:/usr/share/php'] in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
5PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
7PHP Warning: include[gfg.php]: failed to open stream: No such file or directory in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5 PHP Warning: include[]: Failed opening 'gfg.php' for inclusion [include_path='.:/usr/share/php'] in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
7PHP Warning: include[gfg.php]: failed to open stream: No such file or directory in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5 PHP Warning: include[]: Failed opening 'gfg.php' for inclusion [include_path='.:/usr/share/php'] in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
8PHP Warning: include[gfg.php]: failed to open stream: No such file or directory in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5 PHP Warning: include[]: Failed opening 'gfg.php' for inclusion [include_path='.:/usr/share/php'] in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
9PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
50PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
4PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
3PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
53PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
7PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
6PHP Warning: include[gfg.php]: failed to open stream: No such file or directory in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5 PHP Warning: include[]: Failed opening 'gfg.php' for inclusion [include_path='.:/usr/share/php'] in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
9PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
3PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
58PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
59PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
50PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
6PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
32PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
3PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
34PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
7PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
36PHP Warning: include[gfg.php]: failed to open stream: No such file or directory in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5 PHP Warning: include[]: Failed opening 'gfg.php' for inclusion [include_path='.:/usr/share/php'] in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
3______43____75______07PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
21PHP Warning: include[gfg.php]: failed to open stream: No such file or directory in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5 PHP Warning: include[]: Failed opening 'gfg.php' for inclusion [include_path='.:/usr/share/php'] in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
1PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
23PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
3____75______07PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
21PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
9Lỗi
PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
Giải trình. Ở dòng 12, hàm được gọi nhưng không có định nghĩa hàm. Vì vậy, nó đưa ra lỗi
- Lỗi Cảnh báo. Lý do chính của lỗi cảnh báo bao gồm một tệp bị thiếu. Điều này có nghĩa là hàm PHP gọi tệp bị thiếu.
Ví dụ.PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
29PHP Warning: include[gfg.php]: failed to open stream: No such file or directory in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5 PHP Warning: include[]: Failed opening 'gfg.php' for inclusion [include_path='.:/usr/share/php'] in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
1PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
3PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
4PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
33PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
6PHP Warning: include[gfg.php]: failed to open stream: No such file or directory in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5 PHP Warning: include[]: Failed opening 'gfg.php' for inclusion [include_path='.:/usr/share/php'] in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
1PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
36PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
37____438PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
21PHP Warning: include[gfg.php]: failed to open stream: No such file or directory in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5 PHP Warning: include[]: Failed opening 'gfg.php' for inclusion [include_path='.:/usr/share/php'] in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
1PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
3PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
3PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
59____444PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
6PHP Fatal error: Uncaught Error: Call to undefined function diff[] in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php:12 Stack trace: #0 {main} thrown in /home/36db1ad4634ff7deb7f7347a4ac14d3a.php on line 12
9Lỗi
PHP Warning: include[gfg.php]: failed to open stream: No such file or directory in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5 PHP Warning: include[]: Failed opening 'gfg.php' for inclusion [include_path='.:/usr/share/php'] in /home/aed0ed3b35fece41022f332aba5c9b45.php on line 5
Giải trình. Chương trình này gọi một tệp không xác định gfg. php không có sẵn. Vì vậy, nó tạo ra lỗi
Có bao nhiêu cấp độ lỗi trong PHP Mcq?
Trả lời. B] PHP có tổng số 16 cấp độ lỗi.Có bao nhiêu cấp độ lỗi trong PHP 14 15 16 17?
Có mười sáu cấp độ lỗi và mỗi cấp độ được biểu thị bằng một giá trị số nguyên và một hằng số được liên kết.Ba loại lỗi chính là gì?
Các loại lỗi .[1] Lỗi hệ thống. Với loại lỗi này, giá trị đo bị sai lệch do một nguyên nhân cụ thể. .[2] Sai số ngẫu nhiên. Loại sai số này do các tình huống ngẫu nhiên trong quá trình đo gây ra.[3] Lỗi cẩu thảCác lỗi phổ biến nhất trong PHP là gì?
10 lỗi PHP hàng đầu từ hơn 1.000 dự án [và cách tránh chúng] .Lỗi phân tích cú pháp PHP. lỗi cú pháp, kết thúc tệp không mong muốnE_WARNING. Đối số không hợp lệ được cung cấp cho foreach[]Truy vấn ngoại lệ. SQLSTATE[23000]. Vi phạm ràng buộc toàn vẹnTruy vấn ngoại lệ. SQLSTATE[42S22]. Không tìm thấy cột