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PHP

Detailed explanation of PHP array processing using three functions such as foreach, list, and each_PHP tutorial

September 14, 2023 11Like 27read 0comment

This article introduces how to use the three functions of foreach, list, and each for traversing arrays in PHP: Method 1: foreach<?php$sports = array(football => good,swimming => very well ,running => not good);foreach ($sports as $key => $value) {echo $key.”: “.$value.”“;?> Output result:football: goodswimming: very wellrunning: not good Method 2: each<?php$sports = array(football => good,swimming => very well ,running => not good);while ($elem = each($sports)) {echo $elem[key].”: “.$elem[value].”“; ?> Method 3: list & each<?php$sports = array(football => good,swimming => very well,running => not good);while (list($key, $value) = each($sports)) {echo $key.”: “.$value.”“;?> http://www.bkjia.com/PHPjc/486188.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/486188.htmlTechArticleThis article introduces how to use the three functions of foreach, list, and each to traverse arrays in PHP: Method 1: foreach ?php $sports = array( football = good, swimming = very well, running = not…

PHP

Complete list of PHP array traversal methods (foreach, list, each)_php skills-php tutorial

September 11, 2023 13Like 29read 0comment

Arrays are divided into two categories in PHP: numerically indexed arrays and associative arrays. The numeric index array is the same as the array in C language, the subscripts are 0, 1, 2… The subscript of the associative array may be of any type, similar to hash, map and other structures in other languages. The following introduces three methods of traversing associative arrays in PHP: Method 1: foreach The code is as follows: <?php $sports = array( ‘football’ => ‘good’, ‘swimming’ => ‘very well’, ‘running’ => ‘not good’); foreach ($sports as $key => $value ) { echo $key.”: “.$value.”“; ?> Output result: football: good swimming: very well running: not good Method 2: each The code is as follows: <?php $sports = array( ‘football’ = > ‘good’, ‘swimming’ => ‘very well’, ‘running’ => ‘not good’); while ($elem = each($sports)) { echo $elem[‘key’].”: “.$elem[‘value’].”“; ?> Method 3: list & each The code is as follows: <?php $sports = array( ‘football’ => ‘good’, ‘swimming’ => ‘very well’, ‘running’ = > ‘not good’); while (list($key, $value) = each($sports)) { echo $key.”: “.$value.”“; ?>

PHP

A complete collection of PHP array traversal methods (foreach, list, each)

September 9, 2023 9Like 31read 0comment

The most flexible thing in php is an array, and a lot of data is displayed in the form of an array. Here are the traversal methods of the array, which you can choose according to your needs. There are two types of arrays in PHP: numerically indexed arrays and associative arrays. The number index array is the same as the array in C language, and the subscripts are 0, 1, 2… The subscript of the associative array may be of any type, which is similar to the hash, map and other structures in other languages. The following introduces three methods of traversing associative arrays in PHP: Method 1: foreach The code is as follows: <?php $sports = array( ‘football’ => ‘good’, ‘swimming’ => ‘very well’, ‘running’ => ‘not good’); foreach ($sports as $key => $value) { echo $key.”: “.$value.”“; ?> Output: football: good swimming: very well running: not good Method 2: each The code is as follows: <?php $sports = array( ‘football’ => ‘good’, ‘swimming’ => ‘very well’, ‘running’ => ‘not good’); while ($ elem = each($sports)) { echo $elem[‘key’].”: “.$elem[‘value’].”“; ?> Method 3: list & each The code is as follows: <?php $sports = array( ‘football’ => ‘good’,…

PHP

A complete collection of PHP array traversal methods (foreach, list, each)

September 5, 2023 11Like 35read 0comment

There are two types of arrays in PHP: numerically indexed arrays and associative arrays. The number index array is the same as the array in C language, and the subscripts are 0, 1, 2… The subscript of the associative array may be of any type, which is similar to the hash, map and other structures in other languages. The following introduces three methods of traversing associative arrays in PHP: Method 1: foreach The code is as follows: <?php $sports = array( ‘football’ => ‘good’, ‘swimming’ => ‘very well’, ‘running’ => ‘not good’); foreach ($sports as $key => $value) { echo $key.”: “.$value.”“; ?> Output result: football: good swimming: very well running: not good Method 2: each The code is as follows: <?php $sports = array( ‘football’ => ‘good’ , ‘swimming’ => ‘very well’, ‘running’ => ‘not good’); while ($elem = each($sports)) { echo $elem[ ‘key’].”: “.$elem[‘value’].”“; ?> Method 3: list & each The code is as follows: <?php $sports = array( ‘football’ => ‘good’, ‘swimming’ => ‘very well’, ‘running’ => ‘not good’); while (list($key, $value) = each($sports)) { echo $ key.”: “.$value.”“; ?>

PHP

PHP loop statement notes (foreach, list)

September 5, 2023 10Like 28read 0comment

Generally, foreach is used more The code is as follows: <?php $price=array(‘apple’=>10,’orange’ =>20,’banner’=>30); foreach($price as $key=>$value) { echo $key.’=>’.$value.’ ‘; } echo ‘‘; ?> There is a more advanced and common method The code is as follows: <?php $shuiguo=array(‘apple’=>10,’orange’=>20,’banner’=>30); while( list($changpin,$jiaage)=each($shuiguo)) { echo “$changpin=>$jiaage”.’‘; } ?> I didn’t really pay attention to it before, but today I did it myself, it’s not bad, and I’ve learned something new, but I’m still too good at it, hey The list() function can be used to decompose an array into a series A value of , allowing the new variable to be named. If you don’t understand list, click here The output of the two codes is the same. It should be noted that when the each() function is used, the array will record the current element. If you want to use the array twice in the same script. You need to use reset() to reset the current element to the beginning of the array. The code is as follows: <?php $price=array(‘apple’=>10,’orange’=>20,’banner ‘=>30); foreach($price as $key=>$value) { echo $key.’=>’.$value.’‘; } echo ‘‘; reset($price); while(list($key,$value)=each($price)) { echo “$key =>$value”,”“; } ?> In this way, the array $price can still be used. It’s in the…

PHP

PHP array processing uses three functions such as foreach, list, and each in detail Develop Paper

September 4, 2023 6Like 40read 0comment

This article introduces how to use the three functions foreach, list, each for traversing arrays in PHP: Method 1: foreach<?php$sports = array(football => good,swimming => very well ,running => not good);foreach ($sports as $key => $value) {echo $key.”: “.$value.”“;?> Output result: football: goodswimming: very wellrunning: not good Method 2: each<?php$sports = array(football => good,swimming => very well ,running => not good);while ($elem = each($sports)) {echo $elem[key].”: “.$elem[value].”“; ?> Method 3: list & each<?php$sports = array(football => good,swimming => very well,running => not good);while (list($key, $value) = each($sports)) {echo $key.”: “.$value.”“;?> http://www.bkjia.com/PHPjc/486188.htmlwww. bkjia.comtruehttp://www.bkjia.com/PHPjc/ 486188.htmlTechArticleThis article introduces foreach, list, each in PHP to traverse arrays How to use the three functions: Method 1: foreach ?php $sports = array( football = good, swimming = very well, running = not…

torrent kitty search PHP array traversal methods foreach,list,each
PHP

torrentkittysearchPHP array traversal methods foreach,list,each

September 3, 2023 11Like 31read 0comment

Back-end development|php tutorial torrent kitty search backend development-php tutorial Arrays in PHP are divided into two categories: numerical index arrays and associative arrays. The number index array is the same as the array in C language, the subscripts are 0, 1, 2… The subscript of the associative array may be of any type, which is similar to the hash, map and other structures in other languages resemblance. The following introduces three methods of traversing associative arrays in PHP: Method 1: foreachqq Trojan source code, ubuntu screen projection mode, malicious crawler website video, php, Beijing short-term seolzw code As follows: Imitate cool source code, ubuntu system audit log, eliminate crawlers in the soil, php develop iosapp, Guangxi seo investment lzw<?php $sports = array( ‘football’ => ‘good’ , ‘swimming’ => ‘very well’, ‘running’ => ‘not good’); foreach ($sports as $key => $value) { >echo $key.”: “.$value.””; ?> Wechat national partner source code, vscode open php garbled code, ubuntu real-time pudding, tomcat binding ip command, screw crawler, php Get coordinates, what is a snapshot of seo promotion, how to expand the side menu of the website, discuz mobile phone template free download lzw output result: football: good swimming: very well running: not good…

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python: python basic grammar three, list, tuple, dictionary, set_once_again_Morn’s Blog

August 31, 2023 8Like 27read 0comment

class=”markdown_views prism-atom-one-dark”> Python Basic Grammar Article directory Python Basic Grammar List Introduction to List Slicing List modification elements List method Loop through the list sequence Basic operation of sequence range() function EMS (Employee Manager System) Exercise tuple Variable objects Dictionary (dict) Loop through dictionary Set Creation of collections Operation of sets List – A list is an object in Python – An object is an area in memory dedicated to storing data – The object we learned before, like a value, it can only hold a single data – Multiple ordered data can be saved in the list – A list is an object used to store objects – Use of lists: 1. List creation 2. Manipulate the data in the list Introduction to lists # Create a list, use [] to create a list my_list = [] # creates an empty list # print(my_list, type(my_list)) # The data stored in the list, we call it an element # Multiple elements can be stored in a list, or you can specify the elements in the list when creating the list my_list = [10] # create a list with only one element # When adding multiple elements to the list, use…

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STL basic container: is string, vector, list, deque, set, map_string[] ordered?_cy941228’s blog

August 29, 2023 9Like 37read 0comment

class=”markdown_views prism-atom-one-dark”> Basic containers in STL are: string, vector, list, deque, set, map set and map are unordered storage elements, which can only be accessed through the interface it provides set: collection, used to judge whether an element is in a group, less used map: mapping, equivalent to a dictionary, mapping one value to another value, if you want to create a dictionary, use it’s alright string, vector, list, deque, set are ordered containers 1.string string is the implementation of basic_string, and it is stored continuously in memory. In order to improve efficiency, there will be reserved memory, such as string s= “abcd”, then the space used by s may be 255, when string is inserted into s again When adding content, memory will not be allocated again. It will not apply for memory again until the content is > 255, thus improving its performance. When the content is > 255, string will first allocate a new memory, and then copy the content over , and then copy the previous content. The operation on string, if it is added to the end, generally does not need to allocate memory, so the performance is the fastest; If it is an operation…

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