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The difference between array pointer and pointer array

Array pointers and pointer arrays can be converted to each other in some cases, but they are not essentially the same. An array pointer is a pointer that points to the first element of an array; an array of pointers is an array in which each element is a pointer.

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The difference between array pointer and pointer array

What is the difference between array pointer and pointer array

The difference: the pointer array itself is an array, and the elements of the array are pointers, that is, the array stores pointers, and the number of bytes occupied by the array is determined by the array itself; and the array pointer itself is a pointer, which points to an array, that is, it is A pointer to an array always occupies 4 bytes on a 32-bit system.

Jul 13, 2021 am 11:31 AM

c language array of pointers array pointer

What is the use of php array pointers?

PHP array pointers are used to operate arrays. The array pointer is the internal organization mechanism of the array. Each array has an internal pointer pointing to its "current" unit (element). This pointer initially points to the first unit in the current array; by moving or changing the array pointer position, you can access any element in the array. PHP provides multiple built-in functions for controlling array pointers: current(), pos(), key(), next(), prev(), end(), reset().

Dec 28, 2022 pm 07:23 PM

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php each returns the current key-value pair in the array and moves the array pointer forward one step

The php each function is used to obtain the key-value pairs of the array and move the array pointer one step forward. The each function is often used in conjunction with list to traverse the array. This article introduces you to the basic use of each. Friends who need it can refer to it.

May 30, 2018 pm 03:57 PM

php key value

Detailed explanation of array pointer operation in PHP

This article mainly introduces PHP array pointer operations. It has a very good reference value. Let’s take a look at it with the editor.

May 25, 2018 pm 02:39 PM

php operate Detailed explanation

Detailed explanation of array pointers in php

This article mainly shares with you the detailed explanation of array pointers in PHP. First, we will share with you the operation methods of PHP array pointers. We hope it can help you.

Mar 13, 2018 am 09:48 AM

php pointer Detailed explanation

What is the difference between pointer array and array pointer

Difference: For a pointer array, first of all, it is an array, and the elements of the array are all pointers, which means that the array stores pointers. The number of bytes occupied by the array is determined by the array itself; for array pointers, first It is a pointer, it points to an array, that is to say, it is a pointer to the array, which always occupies 4 bytes in a 32-bit system. As for how many bytes the array it points to occupies, this cannot be determined, and it depends on the specific situation. .

Jan 06, 2023 pm 04:50 PM

c language array pointer array of pointers

What is the difference between array pointer and array of pointers

The differences between array pointers and pointer arrays are: 1. The array pointer is a pointer, while the stored pointer array is an array; 2. The array pointer is declared int *p = arr;, while the pointer array is declared int *arr[ 5];; 3. Array pointers can access elements in the array in the form of p[i], while pointer arrays need to access elements in the array in the form of arr[i].

Sep 22, 2023 am 09:51 AM

array pointer array of pointers