Detailed introduction to array_intersect function

These 5 functions for obtaining the intersection have 5 corresponding functions for obtaining the difference set. I am the link. array_intersect($arr1, $arr2); //Get the intersection of the same key value in the array array_intersect_key($arr1, $arr2); //Get the intersection of arrays with the same key name array_intersect_assoc(same as above); //Get the intersection of the key values ​​of the array with the same key name array_intersect_uassoc(same as above, 'custom callback function'); //Use a custom callback function to obtain the intersection of the key values ​​of the array with the same key name array_intersect_ukey (same as above, 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. Commonly used array functions in php (3) (functions to obtain array intersection array_intersect(), array_intersect_key( ), array_intersect_assoc(), array_intersect_uassoc(), array_intersect_ukey())

Introduction: Common array functions in php (3) (functions to obtain array intersection array_intersect() , array_intersect_key(), array_intersect_assoc(), array_intersect_uassoc(), array_intersect_ukey())

2. php Programming Note Sharing

Introduction:: This article mainly introduces the sharing of PHP programming notes. Students who are interested in PHP tutorials can refer to it.

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

Introduction: twinkle twinkle little star:twinkle twinkle little star The array_intersect of the php array function sequence returns two Or the intersection array of multiple arrays: array_intersect() Definition and Usage The array_intersect() function returns the intersection array of two or more arrays. The resulting array contains all the elements in the compared array that also appear in all other parameter arrays. Values, key names remain 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 Attached are detailed instructions for use

Introduction: arrays.sort:arrays.sort php array_intersect is faster than array_diff Attached are detailed instructions for use: If you require the difference between array $a and array $b For the number of difference sets, you should use count($a) - count(array_intersect($a, $b)) instead of count(array_diff($a, $b)); The former is faster than the latter. It's more obvious in arrays. 1. array_intersect function array array_intersect (array $array1, arra

##5.

http://www.hunanzhibo.com/ Function to add two arrays in php

Introduction: http://www.hunanzhibo.com/:http://www.hunanzhibo.com/ Function to add two arrays in php: Copy code The code is as follows:$value){ if(!array_key_e

6.

colesafearray PHP array intersection array_intersect, array_intersect_assoc, array_inter_key function small problem

Introduction: colesafearray: colesafearray PHP array intersection array_intersect, array_intersect_assoc, array_inter_key function small problem : Returns an array with common elements in the intersection (only the array is worthy of comparison). The array_intersect_assoc() function binds the key value and the value and compares the intersection part together. The array_intersect_key() function compares the key values ​​​​of the two arrays and returns the key Array of value intersection. However, some minor problems are encountered in practical applications, as follows: Example: Copy the code as follows:<

##7. php array_intersect() function usage Code_PHP tutorial

Introduction: php array_intersect() function usage code. 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 that

8. PHP array comparison function, returns true if there is an intersection, otherwise returns false_PHP tutorial

Introduction: PHP array comparison function, Returns true if there is an intersection, false otherwise. Copy the code as follows: ?php $array1 = array('a', 'b', 'c', 'd'); $array2 = array('a', 'c'); $array3 = array_intersect($array1 , $array2); if($array3) { echo 'There is intersection'; } ?

9. Intersect of PHP arrays array_intersect(), array_intersect_assoc(), array_inte_PHP tutorial

Introduction: The intersection of PHP arrays array_intersect(), array_intersect_assoc(), array_inte. Returns an array with common elements in the intersection (only the array is worthy of comparison). The array_intersect_assoc() function binds the key value and the value and compares the intersection part together. The array_intersect_key() function is

10 . Function to add two arrays in php_PHP tutorial

Introduction: Function to add two arrays in php. Copy the code as follows: ?php function array_add($a,$b){ //Get 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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