Detailed introduction to array_diff_assoc

Definition and usage The array_diff_assoc() function is used to compare the key names and key values ​​of two (or more) arrays and return the difference. This function compares the keys and values ​​of two (or more) arrays and returns a difference array that includes all elements in the compared array (array1) that are not in any of the other argument arrays (array2 or array3 etc.) in the key name and key value. Example: Compare the keys and values ​​of two arrays and return the difference: "red","b"=>"green","c"=>"blue","d"=>"yellow"

1. The definition and usage of array_diff_assoc() function in php

##Introduction: Definition And usage array_diff_assoc() function is used to compare the key names and key values ​​of two (or more) arrays and return the difference set. This function compares the key names and key values ​​of two (or more) arrays and returns a Difference array, this array includes all key names and key values ​​that are in the compared array (array1) but not in any other parameter array (array2 or array3, etc.)

##. #2.

Comparison of array_diff_assoc and array_diff function instances in PHP

Introduction: Said before array_diff, this time is its upgraded version, the php array difference comparison array_diff_assoc function is used to compare the differences between keys and values ​​in different arrays and output them according to the index array. The usage syntax is the same as array_diff

3.

Two ways to get duplicate data in an array_PHP tutorial##Introduction: Two ways to get duplicate data in an array in php. 1) Use the functions provided by php, array_unique and array_diff_assoc to implement the copy code. The code is as follows: ?php function FetchRepeatMemberInArray($array) { // Get the number of duplicate data removed

##4. php-Arrays function-array_diff_assoc-with index check to calculate the difference of array_PHP tutorial

Introduction: php-Arrays function-array_diff_assoc-with index check to calculate the difference of array Difference. array_diff_assoc() function calculates the difference of an array with index check [Function] This function will return an array that contains all parameters in array1 but not in any other parameter array

5. Learn a new php function every day (2) array_diff()/array_diff_key()/array_diff_assoc()_PHP tutorial

Introduction: Learn one every day A new PHP function (2) array_diff()/array_diff_key()/array_diff_assoc(). Learn a new PHP function every day (2) array_diff()/array_diff_key()/array_diff_assoc() array_diff( array array1, array array2 [, array ] ) Description array_diff() returns an array

6. Collection of commonly used functions in php

Introduction: (1) Commonly used functions in php array processing array_change_key_case - Return string key names in all lowercase or uppercase letters array_chunk — Split an array into multiple array_combine — Create an array, use the value of one array as its key name, and the value of another array as its value array_count_values ​​— Count the number of occurrences of all values ​​in the array array_diff_assoc — With index Check the difference set array_d of the calculated array

7. Two methods of php to obtain repeated data in the array

Introduction : Two methods for php to obtain duplicate data in an array. (1) Use the functions provided by php, array_unique and array_diff_assoc to implement the copy code. The code is as follows: ?php function FetchRepeatMemberInArray($array) { // Get the number of duplicate data removed

##8. php-Arrays function-array_diff_assoc-with index check to calculate the difference of the array

Introduction: php-Arrays function-array_diff_assoc-calculates the difference of arrays with index check. The array_diff_assoc() function calculates the difference set of arrays with index checking [Function] This function will return an array that contains all parameters in array1 but not in any other parameter array

9. Learn a new PHP function every day (2) array_diff()/array_diff_key()/array_diff_assoc()

Introduction: Learn a new PHP function every day (2) array_diff()/array_diff_key()/array_diff_assoc(). Learn a new PHP function every day (2) array_diff()/array_diff_key()/array_diff_assoc() array_diff( array array1, array array2 [, array ] ) Description array_diff() returns an array

10. array_diff_assoc: Calculate the difference set of the array based on the array keys and values ​​at the same time

Introduction: array_diff_assoc: Calculate the array based on the array keys and values ​​at the same time The difference set

The above is the detailed content of Detailed introduction to array_diff_assoc. For more information, please follow other related articles on the PHP Chinese website!