sort function

Here's how to share some of the most common algorithms that are implemented with PHP.1. Bubble sort function Bubble_sort ($arr) { $n =count ($arr); for ($i =0; $i for ($j = $i +1; $j if ($arr [$j]

Php array sorting (ascending, descending and related issues) $ A = array (4, "37", 3,100, 0,-5 ); Sort ($ ); For ($ I = 0; $ I Echo $ a [$ I]. ""; } Echo""; Sort ($ a, SORT_STRING );

1 Find the character position function: Strpos ($str, Search,[int]): Find the first position of search in $str starting with int; Stripos ($str, search,[int]): function returns the position of the first occurrence of a string in another string. This

$a = Array (4, "37", 3,100,0,-5); Sort ($a); for ($i =0; $i echo $a [$i]. " "; } echo ""; Sort ($a, sort_string); for ($i =0; $i echo $a [$i]. " "; } echo ""; ?>

This article mainly introduces how to learn PHP arrays [experience]. For more information, see PHP has many array functions to facilitate array operations. Definition: Each object in the array contains two items: key and value. you can use the

Bubble sort function Maopao_sort ($demo) { $num = count ($demo); for ($i =0; $i for ($j = $num-1; $j > $i; $j-) { if ($demo [$j]$temp = $demo [$j]; $demo [$j]= $demo [$j-1]; $demo [$j -1]= $temp; } } } return $demo; } Insert Sort function

Learn PHP's array summary "experience", PHP array Summary PHP has a lot of functions for arrays, which makes it easy to manipulate arrays. Defined: The array contains two items per entity: Key and value, which can be obtained by querying the key.

The sort function in the previous section can only be ordered in a positive direction, what if we need to reverse sort? You can add a parameter, pass in true, it means to forward the row, passing false, it means to reverse the row. To change the

Reprinted from: http://www.cnblogs.com/cj695/p/3863142.htmlThe sort function works very well in use and is very simple, and efficiency is not an order of magnitude with bubbling or selection sorting. In this paper, the use of the sort function in

In JavaScript, because the function name is a variable, the function can also be used as a value. Not only can we pass a function to another function like passing parameters, but we can also return a function as the return value of another

GetElementByTagNames (names in the plural number) obtains some tag elements and stores them in an array in their order. This is very useful. For example, in the TOCScript in the previous chapter, you need to obtain all H3 and H4 in the entire

1, bubble sort function Bubble_sort ($arr) { $n = count ($arr); For ($i =0 $i 2. Merge sort The merge function merges the specified two ordered arrays (ARR1ARR2,) and sorts//we can find the third array, then take the data from the

First, the introduction A function is a code snippet that has a specific function, and a function is used when a specific name is invoked. Swift provides a very flexible way to create and invoke functions. In fact, in swift, each function is a type,

We use PHP extensions, the main purpose is to improve the execution efficiency of the program, for a large number of traffic code or logic to write it as an extension. In the process of doing the project, it is necessary to sort the data, the data

When dealing with arrays, we sometimes need to sort the array, there are many ways to sort, but the best and quickest way is to use the sort method for fast sorting. Let's take a look at an example: The code is as follows Copy Code

have been so busy lately, take advantage of 51 to update the program. This edition mainly adds and improves the following things: 1, to compare the string to Localecompare instead; 2, multiple Sort objects can be used in one sort (reorder when

the reason for writing this article My current projects rarely use algorithms, so things in this area are naturally a bit rusty. The most recent code encountered the need to get the maximum value from the array, at that time I did not consciously

Today will introduce SQL Sever open window function, what is the window function, do not understand it. Anyway, for me, I was puzzled, and I heard it for the first time. So, what is the window function, in fact, can be understood as a reinforcing

Today, the sort function of the array can accept the custom comparison function, which is really a wonderful thing. In this way, it is very easy to sort (numbers within the range. VarmyArray [-80,-13.888,-10,-9.6,-9.4,-5.823,-7.999 ,... syntaxHig

Introduction: as a web user, we know that the speed of page loading or refreshing is crucial to its success. This article will help you better understand the factors that affect the performance of web applications. Learn to identify these problems