简体中文(ZH-CN) English(EN) 繁体中文(ZH-TW) 日本語(JA) 한국어(KO) Melayu(MS) Français(FR) Deutsch(DE)
Home > Backend Development > PHP Tutorial > body text

How to use heredoc in php

不言
Release： 2023-04-02 21:50:02
Original
1610 people have browsed it

This article mainly introduces the usage of heredoc in PHP, which has certain reference value. Now I share it with everyone. Friends in need can refer to

Heredoc technology, which can be used in regular PHP documents and Technical books generally do not describe it in detail, but only mention that this is a Perl-style string output technology.
But some current forum programs and some article systems cleverly use heredoc technology to partially realize the quasi-separation of interface and code. The phpwind template is a typical example. 

<?php
$name = &#39;world测试&#39;;
echo <<<EOT
<html> 
<head> 
<meta charset="utf-8" /> 
<title>Test</title> 
</head> 
<body>
Hello,$name! 
</body> 
</html>
EOT;
?>
Copy after login

1. Start with the <<2. Variables located between the start tag and the end tag can be parsed normally, but functions cannot. In heredoc, variables do not need to use connectors.
3.heredoc is often used when the output contains a large amount of HTML syntax and documents. For example: 

<?php
$v = 123456;
$a = <<<EOF
"abc" $v "123"
EOF;
echo $a; 
// 结果连同双引号一起输出："abc" 123456 "123"
?>
Copy after login

The above is the entire content of this article. I hope it will be helpful to everyone's study. For more related content, please pay attention to the PHP Chinese website!

Related recommendations:

Later static binding of PHP

##How to use PHP arrays

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

Related labels：
heredoc的用法
source：php.cn
Previous article：Late static binding in php Next article：Why can't php large files be uploaded?
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
Latest Articles by Author
Latest Issues
PHP arrays obtained from URL parameters do not behave as expected I have a URL parameter that contains the category ID and I want to treat it as an array li...
From 2024-04-06 22:09:02
0
1
1428
Where should I place CustomLog directive in apache I'm using php:7.2-apachedocker. I need to disable health check url login access log. Based...
From 2024-04-06 22:03:59
0
1
990
The page suddenly cannot pull css or bootstrap So I'm developing a page, I did part of it yesterday and it worked great, and today I cont...
From 2024-04-06 21:58:04
0
1
800
How to trigger render (with filter and pagination) on sort method in React? Here is my Sort.js style component: <SortWrapper><SortText>SortBy</SortText...
From 2024-04-06 21:28:37
0
1
2257
Sudoku checker not working? Can anyone help me identify the error? I tried everything on the online editor but still get the error. But when I do this on VSC...
From 2024-04-06 21:21:07
0
1
474
Related Topics
More>
Popular Recommendations
Popular Tutorials
More>
Related Tutorials
Popular Recommendations
Latest courses
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
About us Disclaimer Sitemap
php.cn：Public welfare online PHP training，Help PHP learners grow quickly！