php读取文件内容至字符串并加以处理的代码

3. /*

4. *读取文件内容至字符串中，同时去除换行、行首行尾空格。　
5. */
6. header("Content-type: text/html; charset=utf-8");
7. echo preg_replace('/((\s)*(\n)+(\s)*)/i',',',file_get_contents('./file.php'));//End_php

8. //输出:

9. //aaaa,bbbb,cccc,dddd,eeee,ffff,gggg,hhhh,iiii,jjjj,kk kk,ll ll
10. ?>

file.php内容： aaaa

cccc dddd eeee ffff gggg hhhh iiii jjjj kk kk ll ll

//file.php替换空格(x)、Tab(T)效果 aaaa

TTTT cccc ddddT xxxxxxxxxxxT eeeexxxxxxxxxx ffff gggg hhhhxxxxxxxx xxxxxxxxiiii xxxxxxxxjjjjxxxxxxx kkxxxkkTT xxxxllxxllTT Txxxxxxxxxx TTTxx