Recommended 10 articles about intersection

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&

1. 10 recommended articles about difference sets

##Introduction: These 5 functions for obtaining the intersection have 5 corresponding functions for obtaining the difference set. I am a link. array_intersect($arr1, $arr2);//Get the intersection of arrays with the same key value array_intersect_key($arr1, $arr2);//Get the intersection of the array with the same key name array_intersect_assoc (same as above);//Get the array with the same key name key value The intersection of array_intersect_uas...

2. How to use the intersection of arrays? Summarize the usage of intersection of arrays

Introduction: In the project, it is necessary to obtain the intersection of multiple arrays, so this example is only suitable for specific scenarios. For example, A array var a = {1000,10001,10002, 10003}; B array var b = {10002, 10003}; C array var c = {10003}; It is necessary to obtain the intersection array of these three arrays. The specific idea is: initialize one first. The smallest array is the A array, and the smallest number of elements is also the length of the array A. However...

3. Recommended articles about the ukey() function

##Introduction: These 5 functions for obtaining the intersection have 5 corresponding functions for obtaining the difference set. I am a link. array_intersect($arr1, $arr2);//Get the intersection of arrays with the same key value array_intersect_key($arr1, $arr2);//Get the intersection of the array with the same key name array_intersect_assoc (same as above);//Get the array with the same key name key value The intersection of array_intersect_uas...

4.

10 recommended articles about array_intersect_ukey()

##Introduction: These five functions for obtaining intersections have five corresponding functions for obtaining differences. I am the link. array_intersect($arr1, $arr2);//Get the same array. Intersection of key values ​​array_intersect_key($arr1, $arr2);//Get the intersection of arrays with the same key name array_intersect_assoc (same as above);//Get the intersection of arrays with the same key name array_intersect_uassoc (same as above, 'Custom...

5.

uassoc() function definition and usage summary

Introduction: These 5 functions for obtaining the intersection have 5 corresponding functions for obtaining the difference set. I am the link. array_intersect($arr1, $arr2);//Get the intersection of arrays with the same key value array_intersect_key($arr1, $arr2);//Get the intersection of the array with the same key name array_intersect_assoc (same as above);//Get the array with the same key name key value The intersection array_intersect_uas...

6.

Recommended 10 articles about uassoc()

Introduction: These 5 functions for obtaining the intersection have 5 corresponding functions for obtaining the difference set. I am the link. array_intersect($arr1, $arr2);//Get the intersection of arrays with the same key value array_intersect_key($arr1, $arr2);//Get the intersection of the array with the same key name array_intersect_assoc (same as above);//Get the array with the same key name key value The intersection of array_intersect_uas...

7. array_intersect_uassoc function definition and usage summary

##Introduction: This There are 5 corresponding functions for obtaining the difference set among the 5 functions for obtaining the intersection. I am the link. array_intersect($arr1, $arr2);//Get the intersection of arrays with the same key value array_intersect_key($arr1, $arr2);//Get the intersection of the array with the same key name array_intersect_assoc (same as above);//Get the array with the same key name The intersection of array_intersect_uas...

##8.

Recommended articles about array_intersect_uassoc()

Introduction: These 5 functions for obtaining the intersection have 5 corresponding functions for obtaining the difference set. I am the link. array_intersect($arr1, $arr2);//Get the intersection of arrays with the same key value array_intersect_key($arr1, $arr2);//Get the intersection of the array with the same key name array_intersect_assoc (same as above);//Get the array with the same key name The intersection of array_intersect_uassoc (same as above, 'custom...

9.

Recommended articles about array_intersect_key()

##Introduction: These five functions for obtaining intersections have five corresponding functions for obtaining differences. I am the link. array_intersect($arr1, $arr2);/ /Get the intersection of arrays with the same key value array_intersect_key($arr1, $arr2); //Get the intersection of the array with the same key name array_intersect_assoc (same as above); //Get the intersection of the array with the same key name array_intersect_uassoc (same as above, 'Custom. ..

10.

array_intersect_assoc() function definition and usage summary

Introduction: These 5 functions for obtaining intersection have 5 corresponding functions for obtaining difference sets. I am the link. array_intersect($arr1, $arr2);//Get the intersection of arrays with the same key value array_intersect_key. ($arr1, $arr2);//Get the intersection of the array with the same key name array_intersect_assoc (same as above);//Get the intersection of the array with the same key name array_intersect_uas...

【 Recommended related questions and answers]:

python - 100G ultra-large file merge sorting

java - Snake related questions?

How does Python effectively compare a changed list?

php - How to use the keys of two arrays to find the intersection

Find a regular expression that satisfies neither xx nor xxx

The above is the detailed content of Recommended 10 articles about intersection. For more information, please follow other related articles on the PHP Chinese website!