Hướng dẫn php constant associative array - mảng kết hợp hằng số php

Xem thảo luận

Nội dung chính

Làm thế nào để bạn mã hóa một mảng kết hợp trong PHP?
Mảng liên kết mảng với cú pháp với ví dụ là gì?
Đó là một ví dụ về mảng kết hợp *?
Các mảng kết hợp trong lập trình là gì?

Cải thiện bài viết

Lưu bài viết

Đọc

Bàn luận

Xem thảo luận

Cải thiện bài viết

Lưu bài viết

Đọc

Bàn luận
Here array() function is used to create associative array.

xyz==>95
100==>abc
11==>100
abc==>pqr

Bàn luậnHere array() function is used to create associative array.

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Mảng liên kết được sử dụng để lưu trữ các cặp giá trị chính. Ví dụ, để lưu trữ các dấu hiệu của một môn học khác nhau của một học sinh trong một mảng, một mảng được lập chỉ mục bằng số sẽ không phải là lựa chọn tốt nhất. Thay vào đó, chúng tôi có thể sử dụng các tên chủ đề tương ứng làm các khóa trong mảng kết hợp của chúng tôi và giá trị sẽ là điểm tương ứng của chúng.

Ví dụ: Hàm mảng () ở đây được sử dụng để tạo mảng kết hợp.

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

xyz==>95
100==>abc
11==>100
abc==>pqr

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

0____11

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

1_______

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

Output:

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

xyz==>95
100==>abc
11==>100
abc==>pqr

70
xyz==>95 100==>abc 11==>100 abc==>pqr
92
xyz==>95 100==>abc 11==>100 abc==>pqr
75

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

71
Looping using foreach: Student one got 95 in Maths Student one got 90 in Physics Student one got 96 in Chemistry Student one got 93 in English Student one got 98 in Computer Looping using for: Maths 95 Physics 90 Chemistry 96 English 93 Computer 98
5
xyz==>95 100==>abc 11==>100 abc==>pqr
79
xyz==>95 100==>abc 11==>100 abc==>pqr
80
xyz==>95 100==>abc 11==>100 abc==>pqr
72
We can traverse associative arrays using loops. We can loop through the associative array in two ways. First by using for loop and secondly by using foreach.

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

72We can traverse associative arrays using loops. We can loop through the associative array in two ways. First by using for loop and secondly by using foreach.

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

7
Here array_keys() function is used to find indices names given to them and count() function is used to count number of indices in associative arrays.

xyz==>95
100==>abc
11==>100
abc==>pqr

Bàn luậnHere array() function is used to create associative array.

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

xyz==>95
100==>abc
11==>100
abc==>pqr

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

0____11

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

1_______

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Output:

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

41
Looping using foreach: Student one got 95 in Maths Student one got 90 in Physics Student one got 96 in Chemistry Student one got 93 in English Student one got 98 in Computer Looping using for: Maths 95 Physics 90 Chemistry 96 English 93 Computer 98
5
xyz==>95 100==>abc 11==>100 abc==>pqr
79
xyz==>95 100==>abc 11==>100 abc==>pqr
80
xyz==>95 100==>abc 11==>100 abc==>pqr
72We can traverse associative arrays using loops. We can loop through the associative array in two ways. First by using for loop and secondly by using foreach.

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

721
Looping using foreach: Student one got 95 in Maths Student one got 90 in Physics Student one got 96 in Chemistry Student one got 93 in English Student one got 98 in Computer Looping using for: Maths 95 Physics 90 Chemistry 96 English 93 Computer 98
8
xyz==>95 100==>abc 11==>100 abc==>pqr
79
xyz==>95 100==>abc 11==>100 abc==>pqr
80
xyz==>95 100==>abc 11==>100 abc==>pqr
72

xyz==>95
100==>abc
11==>100
abc==>pqr

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

xyz==>95
100==>abc
11==>100
abc==>pqr

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

xyz==>95
100==>abc
11==>100
abc==>pqr

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

xyz==>95
100==>abc
11==>100
abc==>pqr

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

xyz==>95
100==>abc
11==>100
abc==>pqr

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

72Here array_keys() function is used to find indices names given to them and count() function is used to count number of indices in associative arrays.

xyz==>95
100==>abc
11==>100
abc==>pqr

xyz==>95
100==>abc
11==>100
abc==>pqr

Output:

xyz==>95
100==>abc
11==>100
abc==>pqr

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

Looping using foreach: 
Student one got 95 in Maths
Student one got 90 in Physics
Student one got 96 in Chemistry
Student one got 93 in English
Student one got 98 in Computer

Looping using for: 
Maths 95
Physics 90
Chemistry 96
English 93
Computer 98

xyz==>95
100==>abc
11==>100
abc==>pqr

PHP // Ví dụ về mảng kết hợp $ family = mảng ("cha" => "mohan", "mẹ" => "sita", "con trai" => "raj", "con gái" => "mona"); // Phương thức đầu tiên để đi qua mảng kết hợp foreach ($ family as $ key => $ value) {echo $ key. ' là '. $ giá trị; echo ''; }?>foreach($family as $key=>$value) { echo $key .' is '.$value; echo ''; } ?>foreach($family as $key=>$value) { echo $key . ' is '. $value; echo '
'; } ?>

Mảng số - một mảng có chỉ số số.Các giá trị được lưu trữ và truy cập theo kiểu tuyến tính.Mảng liên kết - một mảng có chuỗi là chỉ mục.Điều này lưu trữ các giá trị phần tử kết hợp với các giá trị chính thay vì theo thứ tự chỉ mục tuyến tính nghiêm ngặt.

Mảng liên kết được sử dụng để lưu trữ các cặp giá trị chính.Ví dụ, để lưu trữ các dấu hiệu của một môn học khác nhau của một học sinh trong một mảng, một mảng được lập chỉ mục bằng số sẽ không phải là lựa chọn tốt nhất.to store the marks of different subject of a student in an array, a numerically indexed array would not be the best choice.to store the marks of different subject of a student in an array, a numerically indexed array would not be the best choice.

Trong khoa học máy tính, một mảng kết hợp, bản đồ, bảng ký hiệu hoặc từ điển là một loại dữ liệu trừu tượng lưu trữ một bộ sưu tập các cặp (khóa, giá trị), sao cho mỗi khóa có thể xuất hiện nhiều nhất một lần trong bộ sưu tập.an abstract data type that stores a collection of (key, value) pairs, such that each possible key appears at most once in the collection.an abstract data type that stores a collection of (key, value) pairs, such that each possible key appears at most once in the collection.