A detailed introduction to the array_intersect function

The five functions that obtain the intersection have five corresponding functions that obtain the difference set. I am a link. Array_intersect ($ arr1, $ arr2); get the intersection of the same key value of the array array_intersect_key ($ arr1, $ arr2); get the intersection of the same key name of the array array_intersect_assoc ); obtain the intersection of the same key value in the array. array_intersect_uassoc (same as above, custom... the five functions that obtain the intersection have five corresponding functions that obtain the difference set. I am a link. Array_intersect ($ arr1, $ arr2); // Obtain the intersection of the same key value in the array. array_intersect_key ($ arr1, $ arr2 ); // Obtain the intersection of the same key names in the array. array_intersect_assoc (same as above); // Obtain the intersection of the same key values in the array. array_intersect_uassoc (same as above, 'custom callback function '); // use a custom callback function to obtain the array_intersect_ukey at the intersection of the key values of the array with the same key (same as above, the custom callback function ); // use a custom callback function to obtain the intersection of data with the same key name. 1 $ arr1 = array ('R' => 'red', 'u' => 'blue ', 'G' => 'green', 'B' => 'black'); 2 $ arr2 = array ('R' => 'red

1. common array functions in php (3) (array_intersect (), array_intersect_key (), array_intersect_assoc (), round (), and array_intersect_ukey ())

Introduction: common array functions in php (3) (array_intersect (), array_intersect_key (), array_intersect_assoc (), round (), and array_intersect_ukey ())

2. php programming notes sharing

Introduction: This article mainly introduces php programming notes. For more information about PHP tutorials, see.

3. array_intersect of the twinkle little star php array function sequence returns the intersection array of two or more arrays.

Introduction: twinkle little star php array function sequence array_intersect returns the intersection array of two or more arrays: array_intersect () definition and usage array_intersect () the function returns the intersection array of two or more arrays. The result array contains all values in the compared array and all other parameter arrays. The key name remains unchanged. Note: only values are used for comparison. Syntax: array_intersect (array1, array2, array3

4. arrays. sort php array_intersect is faster than array_diff. detailed instructions for use

Introduction: arrays. sort: arrays. sort php array_intersect is faster than array_diff. Appendix: if the number of difference sets between array $ a and array $ B is required, use count ($) -count (array_intersect ($ a, $ B), instead of count (array_diff ($ a, $ B); the front is faster than the latter, it is more obvious in a large array. 1. array_intersect function array array_intersect (array $ array1, arra

5. function of adding two arrays in http://www.hunanzhibo.com/php

Introduction: The function of adding two arrays in http://www.hunanzhibo.com/:http://www.hunanzhibo.com/ php: the code is as follows: $ Value) {if (! Array_key_e

6. small issues with the intersection of the colesafearray PHP array array_intersect, array_intersect_assoc, and array_inter_key functions

Introduction: colesafearray: the intersection of the colesafearray PHP array array_intersect, array_intersect_assoc, and the small problem of the array_inter_key function: returns an array of the common elements of an intersection (just an array worth comparing), and () the function is to bind the key value and value, compare the intersection part together, the array_intersect_key () function is to compare the key values of the two arrays, return to the array of the key value intersection. However, some minor problems have also been encountered in practical applications, as shown below: instance: the code is as follows: <

7. php array_intersect () function use code _ PHP Tutorial

Introduction: php array_intersect () function uses code. The array array_intersect (array array1, array array2 [, array...]) array_intersect () function returns the intersection array of two or more arrays. Array_intersect () returns an array

8. PHP array comparison function, returns true if there is an intersection, otherwise returns false _ PHP Tutorial

Description: PHP array comparison function. If an intersection exists, the result is true. Otherwise, the result is false. The code is as follows :? Php $ array1 = array ('A', 'B', 'C', 'D'); $ array2 = array ('A', 'C '); $ array3 = array_intersect ($ array1, $ array2); if ($ array3) {echo 'intersection ';}?

9. PHP array intersection array_intersect (), array_intersect_assoc (), array_inte_PHP tutorial

Introduction: The intersection of PHP arrays: array_intersect (), array_intersect_assoc (), and array_inte. Returns an array (only an array worth comparing) with a common element of the intersection. the array_intersect_assoc () function binds the key value and value to compare the intersection part. the array_intersect_key () function is

10. php _ PHP Tutorial on adding two arrays

Introduction: php adds two arrays. The code is as follows :? Php function array_add ($ a, $ B) {// Obtain the intersection of two arrays based on the key name $ arr = array_intersect_key ($ a, $ B); // traverse the second array, if the key name does not exist

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