Common Array Functions in php

: This article mainly introduces common array functions in php. For more information about PHP tutorials, see. 1. locate the array:

1. Bool in_array (mixed needle, array haystack [, bool strict]) to find the specified element;
2. Array array_keys (arraqy input [, mixed search_value]) an array composed of return key values;
3. Bool array_key_exists (mixed key, array search) determines whether the key value is the specified key value;
4. Array array_values (array input) returns the element values in the array;
5. 2. traverse the array:
6. Mixed key (array input) returns the key value of the current pointer element;
7. Mixed reset (array input_array) resets the pointer to the starting position of the array;
8. Array each (array input_array) returns the array value of the current pointer position;
9. Mixed current (array input_array) returns the value of the array element at the current pointer position;
10. Mixed end (array input_array) returns the current pointer pointing to the last element;
11. Mixed next (array input_array) returns the array element at the next position of the current pointer;
12. Mixed prev (array input_array) returns the array value located in the previous position of the current pointer;
13. 3. add and delete array elements:
14. Int array_push (array & array, mixe var [, mixed...]) to add the specified value to the end of the array;
15. Mixed array_pop (array & array) returns the last element of the array and resets the array pointer;
16. Mixed array_shift (array target_array) returns the first element value of the array;
17. Int array_unshift (array & array, mixed var [, mixed...]) to add the specified element to the starting position
18. Array array_pad (array input, int pad_size, mixed pad_value) adds the array to the specified length.
19. 4. sort arrays:
20. Bool sort/rsort (array & array [, int sort_flags]); ascending and descending;
21. 5. Merge and split arrays:
22. Array array_combine (array keys, array values) array merging;
23. Array array_merge (array array1 [, array array2 [array...]) combines multiple numbers and returns a new array;
24. Array array_slice (array, int offset [, int length]) extracts the specified length from the specified position of the array and saves it to a new array;
25. Array explode (string separator, string) is separated and the result is saved;
26. Array implode (string glue, array pieces) specifies a new character for the element to be connected through a string;
27. 5. create an array of the specified range:
28. Array range (mixe low, mixed high [, number step]) to create an array of the specified range;
29. Array shuffle ($ array) random sorting of elements in the specified array;
30. Number array_sum (array input_array) sums all elements;

The above describes the common array functions in php, including the content, and hope to help those who are interested in the PHP Tutorial.