<code><?php include'TEST.PHP'; ?></code>
加载一个test.php文件,这个是文件是空的,就只有。不会报错。但是
<code><?php <?php?> ?></code>
这样写就会报错。include是创建了一个新的php运行环境吗?还是怎么的?
回复内容:
<code><?php include'TEST.PHP'; ?></code>
加载一个test.php文件,这个是文件是空的,就只有。不会报错。但是
<code><?php <?php?> ?></code>
这样写就会报错。include是创建了一个新的php运行环境吗?还是怎么的?
include 的是中间的部分,不带php开始结束符
纯 php 文件不应该有关闭符号,除非这里面包含了 HTML 内容。
<?php \\code
你的报错是什么没有贴出来,看起来这个问题有可能是结束符后面有其他非法字符。
你这个代码区没放置好,莫非你的代码是
<?php <?php?> ?>
这样肯定错误了,语法都不对,如果不是,建议重新编辑一下问题,include 相当于把 include 的文件复制进来,如果你这里面包含非法字符就出问题了,你也可以单独执行 test.php 进行测试。
补充:如楼上所说,include 虽说是复制文件,但也要注意作用域,详见 PHP之 include,require 等包含作用域
我看了你的更新,你这语法本身就是错的,必然会错误。
另外,关于结束标签请看官方的说明 PHP 标记。
include并不是单纯地把代码塞到文件里来。
php是解释性语言,当读到include等指令时会加载另一个文件的opcodes来执行吧,我觉得是这样

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.


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