Summary of PHP array learning series (continuously updated~)

I have written a lot of articles about PHP array learning during this period, and I believe they will be more or less helpful to everyone. So today this article will give you a big summary of all the previous array learning series articles to facilitate your learning. You are welcome to collect and share learning~

PHP array learning series articles The summary is as follows:

One: "PHP array learning how to create and initialize a one-dimensional array (detailed code explanation)"

Two: "PHP array learning: A brief analysis of two-dimensional array creation methods》

3:《PHP array learning: Let’s talk about several methods of outputting arrays》

4: " Tips for learning PHP arrays: Use array functions to sort arrays in ascending order! 》

Five:《PHP Array Learning Two-Dimensional Array Calculating Array Length》

Six:《PHP Array Learning to get the first/last element (1)》

7:《PHP array learning to get the first/last element (2) 》

Eight:《PHP Array Learning: Calculating the Sum of Array Elements》

9:《PHP Array Learning: Calculating the Product of Array Elements》

十：《PHP array learning: How to traverse array elements? Brief analysis of 4 methods》

Eleven:《PHP array learning: How to check whether there is a specified key name/value》

Twelve:《PHP Array Learning Tips Use array functions to sort arrays in descending order! 》

Thirteen:《Random sorting of PHP array learning, disrupting array elements》

Fourteen:《How to learn PHP array Compare two arrays to find the intersection》

Fifteen:《PHP array learning how to compare two arrays to find the difference》

Sixteen:《PHP Array Learning: How to Create Arrays by Filling》

Seventeen:《PHP Array Learning: How to Use Functions to Insert Elements (1)》

Eighteen: "PHP Array Learning: How to Use Functions to Insert Elements (2)"

Nineteen: "PHP Array Learning: Randomly Obtain Multiple Elements 》

Twenty:《PHP array learning: find the value with the highest repetition rate》

Twenty-one:《PHP array learning: reverse the order, Print all elements in reverse》

Twenty-two:《PHP array learning how to create arrays by merging》

Twenty-three:《PHP array learning how to remove the first and last values》

Twenty-four:《PHP array learning how to remove any element》

Twenty-five: "PHP array learning: Change the uppercase or lowercase of keys/values"

Twenty-six: "PHP array learning: Return all common factors and the maximum between two given numbers Common Factor》

Twenty-seven:《PHP array learning uses bubble algorithm to sort elements in ascending order! 》

Twenty-eight:《PHP array learning: Compare array elements and obtain the first and second largest values》

Twenty-nine:《PHP array learning skillfully uses functions to extract the maximum value and the second largest value》

Thirty:《PHP array learning how to intercept element fragments (two methods) 》

Thirty-one: " How to sort two-dimensional arrays in PHP array learning (2 methods) "

Thirty-two: " How to sort two-dimensional arrays in PHP array learning Exchange the positions of key names and values》

33:《PHP Array Learning: Transforming a one-dimensional array into a two-dimensional array containing specified multiple elements》

Thirty-four: "PHP array learning how to remove blank or repeated elements"

Thirty-five: "PHP Array learning: extracting digital elements and splicing them into a new array》

36:《PHP array learning: how to reset the index of a multi-dimensional array》

37: "PHP array learning: changing the key of one-dimensional and two-dimensional arrays"

38: "PHP array learning: extracting the first element of an associative array The key name key》

Thirty-nine:《PHP array learning returns the last key name of the associative array》

Forty:《 PHP array learning: splicing elements into a string and outputting (3 methods)》

The array learning series articles I have written so far are all here. I will update when there are new articles!

By the way, let me introduce PHP arrays to you:

Arrays are one of the means to effectively organize and manage large amounts of data. Through the powerful function of arrays, a large amount of data of the same nature can be stored. , sorting, insertion and deletion operations, which can effectively improve program development efficiency and improve the way programs are written.

PHP is one of the most popular Web development languages ​​on the market. With its open source code and fast upgrade speed, it has more powerful ability to operate arrays. In particular, PHP provides a lot of convenience for program developers. , the easy-to-understand array operation functions make PHP popular among the majority of Web developers.

Recommended related articles:

《PHP ARRAY Array Function (Special Topic)》

《 PHP date and time application summary (continuously updated ~) 》

《PHP algorithm exercise series summary (continuously updated~)》

《 Summary of PHP cycle learning series (continuously updated~)》

The above is the detailed content of Summary of PHP array learning series (continuously updated~). For more information, please follow other related articles on the PHP Chinese website!