PHP provides various array functions, including: adding and deleting elements: array_push(), array_pop() adding and deleting the first element: array_unshift(), array_shift() merging and difference: array_merge( ), array_diff() Get a part of an array: array_slice() Insert, delete or replace elements: array_splice() Apply a function to array elements: array_map() Filter array elements: array_filter() Group array elements into one value: array_reduce() Check whether the element exists: in_arr
##Common array functions in PHP
1. array_push() and array_pop(): Adding and removing elements
- array_push()Adds one or more elements to the end of the array.
- array_pop()Removes an element from the end of the array and returns that element.
2. array_unshift() and array_shift(): Add and delete the first element
##array_unshift()
- in Adds one or more elements to the beginning of the array.
array_shift()
- Removes an element from the beginning of the array and returns that element.
3. array_merge() and array_diff(): merge and difference
array_merge()
- Combine two Or multiple arrays are combined into a new array, removing duplicates.
array_diff()
- Returns the elements in the first array that do not exist in other arrays.
4. array_slice(): Get a part of the array
array_slice()
- Start getting from the specified position of the array Returns a new array with the specified number of elements.
5. array_splice(): Insert, delete or replace elements
array_splice()
- Insert, Remove or replace one or more elements.
6. array_map(): Apply the function to the array elements
array_map()
- to each element in the array Element applies the specified callback function, returning a new array.
7. array_filter(): Filter array elements
array_filter()
- Filter the array according to the specified callback function, Returns a new array containing elements that satisfy the condition.
8. array_reduce(): Convert array elements to one value
array_reduce()
- Apply array elements to The specified callback function performs the reduction and returns a result.
9. in_array(): Check whether the element exists
in_array()
- Check whether the specified element is in the array , returns a Boolean value.
10. array_key_exists(): Check whether the key exists
array_key_exists()
- Check whether the specified key exists Array, returns a Boolean value.
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