PHP从文本文件中删除包含字符串的行 [英] PHP Remove line containing string from a text file

问题描述

  Kate 
 Johnny 
 Bill 
 Kermit 
  

我希望能够将Bill放入一个字符串中，并从文件中删除Bill或变量中的任何内容以及随后的\r \\\
。这个变量总是包含已经存在的文件，如果没有George，就不会有George。
这个代码检查文件是否是Bill。

  $ fileContents = file_get_contents（names.txt）; 
 if（strpos（$ fileContents，Bill））
 {
 // Bill在这里！ 
 
 $ / code> 

我如何扩展这个去除Bill \\\
？提前感谢！

解决方案

  $ var =Bill; 
 $ input =Kate 
 Johnny 
 Bill 
 Kermit; 
 
 $ output = str_replace（$ var。\r\\\
，，$ input。\r\\\
）; 
  




I have a file that looks something like this.

Kate
Johnny
Bill
Kermit

I want to be able to put, for example, "Bill" into a string, and remove "Bill", or whatever is in the variable, and the subsequent "\r\n" from the file. The variable will always contain something that is already in the file, there won't be "George" if there is no George.
This code checks if "Bill" is in file.

$fileContents = file_get_contents("names.txt");
if(strpos($fileContents, "Bill"))
{
    //Bill is here!
}

How would I expand upon this to remove "Bill\r\n"? Thanks in advance!

解决方案

$var = "Bill";
$input = "Kate
Johnny
Bill
Kermit";

$output = str_replace($var ."\r\n", "", $input ."\r\n");

这篇关于PHP从文本文件中删除包含字符串的行的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！