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Home Backend Development PHP Tutorial A problem that PHP ignored before

A problem that PHP ignored before

Dec 01, 2016 am 12:25 AM
php

<code><?php
    include'TEST.PHP';
?></code>
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Copy after login

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>
Copy after login
Copy after login

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>
Copy after login
Copy after login

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>
Copy after login
Copy after login

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
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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?>
?>
Copy after login

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

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