A detailed introduction to ARRAY_DIFF_ASSOC

Define and use the ARRAY_DIFF_ASSOC () function to compare the key names and key values of two (or more) arrays and return a difference set. The function compares the key names and key values of two (or more) arrays, and returns an array of difference sets that contain all the key names and key values in the array being compared (array1), but not in any other parameter array (array2 or array3, and so on). Example: Compare the keys and values of two arrays and return the difference set: <! DOCTYPE Html>

1. Definition and usage of ARRAY_DIFF_ASSOC () function in PHP

Summary: Define and use the ARRAY_DIFF_ASSOC () function to compare the key names and key values of two (or more) arrays and return a difference set. The function compares the key names and key values of two (or more) arrays, and returns an array of difference sets that contain all the key names and key values in the array being compared (array1), but not in any other parameter array (array2 or array3, and so on).

2. Comparison of ARRAY_DIFF_ASSOC and Array_diff function instances in PHP

Introduction: Previously said Array_diff, this time is its upgrade version, PHP array difference comparison ARRAY_DIFF_ASSOC function, used to compare the difference between the key and value in different arrays and output according to the indexed array. Use the same syntax as Array_diff

3. PHP gets two methods of repeating data in an array _php tutorial

Summary: Php gets two methods of repeating data in an array. (1) using PHP-provided functions, array_unique and ARRAY_DIFF_ASSOC to implement the copy Code code as follows:? PHP function Fetchrepeatmemberinarray ($array) {// Get the number of deduplicated data

4. php-arrays function-array_diff_assoc-with index Check calculate the difference of the array _php tutorial

Summary: The Php-arrays function-array_diff_assoc-the difference of the computed array with an index check. ARRAY_DIFF_ASSOC () function with index check to calculate the difference of the array "function" The function returns an array that contains all the array1 but not any other parameter array

5. One day to learn a new PHP function (2) Array_diff ()/array_diff_key ()/array_diff_assoc () _php Tutorial

Summary: Learn a new PHP function for each day (2) Array_diff ()/array_diff_key ()/array_diff_assoc (). Every day one learns a new PHP function (2) Array_diff ()/array_diff_key ()/array_diff_assoc () Array_diff (array array1, array array2 [, array]) says Ming Array_diff () returns an array

6. PHP Common Function Collection

Introduction: (1) PHP array processing commonly used functions array_change_key_case-returns the string key name is all lowercase or uppercase array array_chunk-an array into multiple array_combine-create an array, Uses the value of one array as its key name, and the value of the other array as its value array_count_values-the number of occurrences in the statistic array array_diff_assoc-the difference set of the computed array with an index check array_d

7. PHP gets two methods of repeating data in an array

Summary: Php gets two methods of repeating data in an array. (1) using PHP-provided functions, array_unique and ARRAY_DIFF_ASSOC to implement the copy Code code as follows:? PHP function Fetchrepeatmemberinarray ($array) {// Get the number of deduplicated data

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

Summary: The Php-arrays function-array_diff_assoc-the difference of the computed array with an index check. ARRAY_DIFF_ASSOC () function with index check to calculate the difference of the array "function" The function returns an array that contains all the array1 but not any other parameter array

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

Summary: Learn a new PHP function for each day (2) Array_diff ()/array_diff_key ()/array_diff_assoc (). Every day one learns a new PHP function (2) Array_diff ()/array_diff_key ()/array_diff_assoc () Array_diff (array array1, array array2 [, array]) says Ming Array_diff () returns an array

ARRAY_DIFF_ASSOC: Calculates the difference set of an array based on the array key and value

Summary: Array_diff_assoc: Calculates the difference set of an array based on the array key and value