Home Backend Development PHP Problem How to use continue in php

How to use continue in php

Oct 08, 2021 pm 02:35 PM
continue php

In PHP, the continue keyword is used in a loop structure. It can control the program to abandon the code after the continue statement in this loop and proceed to the next loop; continue can also accept an optional numeric parameter. To decide how many loops to skip to the end of the loop, the default value is 1, which means jumping to the end of the current loop.

How to use continue in php

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

continue is used in the loop structure, it You can control the program to abandon the code after the continue statement in this loop and proceed to the next loop. continue itself does not jump out of the loop structure, it just gives up the loop this time. If you use continue in a non-looping structure (such as an if or switch statement), your program will error.

The difference between the continue keyword and the break keyword is that the continue keyword only ends the current loop, while the break keyword will terminate the execution of the entire loop.

The execution flow of the continue keyword is shown in the figure below:

How to use continue in php

[Example] Use a for loop to output all numbers between 1~10. When the number When it is an even number, skip the current loop. The implementation code is as follows:

<?php
    for ($i = 1; $i <= 10; $i++) {
        if($i % 2 == 0) {
            continue;
        }
        echo &#39;$i = &#39;.$i.&#39;, <br>&#39;;
    }
?>
Copy after login

The running result is as follows:

$i = 1,
$i = 3,
$i = 5,
$i = 7,
$i = 9,
Copy after login

Same as the break keyword, continue can also accept an optional numeric parameter to decide to skip. At the end of several loops, the default value is 1, which means jumping to the end of the current loop. The syntax format is as follows:

continue n;
Copy after login

The sample code is as follows:

<?php
    $arr = array(&#39;A&#39;,&#39;B&#39;,&#39;C&#39;,&#39;D&#39;,&#39;E&#39;,&#39;F&#39;,&#39;G&#39;,&#39;H&#39;,&#39;I&#39;,&#39;J&#39;);
    for ($i=0; $i < 10; $i++) {
        echo &#39;<br>&#39;;
        if($i % 2 == 0){
            continue;
        }
        for (;;) {
            for ($j=0; $j < count($arr); $j++) {
                if($j == $i){
                    continue 3;
                }else{
                    echo &#39;$arr[&#39;.$j.&#39;] = &#39;.$arr[$j].&#39; | &#39;;
                }
            }
        }
        echo "由于前面跳出了循环,所以这句换无法打印出来!";
    }
?>
Copy after login

The running results are as shown below:

How to use continue in php

Recommended learning: "PHP video tutorial

The above is the detailed content of How to use continue in php. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

CakePHP Project Configuration CakePHP Project Configuration Sep 10, 2024 pm 05:25 PM

In this chapter, we will understand the Environment Variables, General Configuration, Database Configuration and Email Configuration in CakePHP.

PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian Dec 24, 2024 pm 04:42 PM

PHP 8.4 brings several new features, security improvements, and performance improvements with healthy amounts of feature deprecations and removals. This guide explains how to install PHP 8.4 or upgrade to PHP 8.4 on Ubuntu, Debian, or their derivati

CakePHP Date and Time CakePHP Date and Time Sep 10, 2024 pm 05:27 PM

To work with date and time in cakephp4, we are going to make use of the available FrozenTime class.

CakePHP File upload CakePHP File upload Sep 10, 2024 pm 05:27 PM

To work on file upload we are going to use the form helper. Here, is an example for file upload.

CakePHP Routing CakePHP Routing Sep 10, 2024 pm 05:25 PM

In this chapter, we are going to learn the following topics related to routing ?

Discuss CakePHP Discuss CakePHP Sep 10, 2024 pm 05:28 PM

CakePHP is an open-source framework for PHP. It is intended to make developing, deploying and maintaining applications much easier. CakePHP is based on a MVC-like architecture that is both powerful and easy to grasp. Models, Views, and Controllers gu

How To Set Up Visual Studio Code (VS Code) for PHP Development How To Set Up Visual Studio Code (VS Code) for PHP Development Dec 20, 2024 am 11:31 AM

Visual Studio Code, also known as VS Code, is a free source code editor — or integrated development environment (IDE) — available for all major operating systems. With a large collection of extensions for many programming languages, VS Code can be c

CakePHP Creating Validators CakePHP Creating Validators Sep 10, 2024 pm 05:26 PM

Validator can be created by adding the following two lines in the controller.

See all articles