PHP:file_get_contents字符串结果查询
1.txt的内容:
这是测试文件
PHP代码如下:
<code><?PHP //无法得出结果 echo strpos(file_get_contents("1.txt"), "测试"); //输出正确结果:6 echo strpos("这是测试文件", "测试"); ?> </code>
以上代码执行的时候,并没有能成功找到"测试"在1.txt文件中的位置。
回复内容:
1.txt的内容:
这是测试文件
PHP代码如下:
<code><?PHP //无法得出结果 echo strpos(file_get_contents("1.txt"), "测试"); //输出正确结果:6 echo strpos("这是测试文件", "测试"); ?> </code>
以上代码执行的时候,并没有能成功找到"测试"在1.txt文件中的位置。
一看到txt就知道是编码问题了,测试
是在PHP文件中,所以是PHP文件的编码(应该是UTF-8),txt文件肯定是用默认的记事本造的,是GBK编码的了。
- 分解测试,先把
file_get_contents("1.txt")
的内容搞到一个变量里,看一下究竟是什么。 - 用
getcwd()
函数看一下你的PHP文件的工作目录。
执行php脚本的工作目录,恐怕并不像你想象的那样,总是在php脚本同一个目录下的。
最简单的,一行Shell命令就打破这个错误认知:/usr/bin/env php /some/other/dir/script.php

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