PHP method to delete spaces on the right side of files line by line Original, _PHP tutorial

How to delete spaces on the right side of a file line by line in PHP. Original,

This article describes an example of how to delete spaces on the right side of a file line by line in PHP. Share it with everyone for your reference, the details are as follows:

In the process of editing and organizing the code, I found that some codes on the Internet often have a lot of spaces on the right side, which occasionally affects the layout and reading of the code, so I wrote a simple PHP code to delete the right side of the file line by line. spaces and save to a new file.

The demo.txt file with spaces on the right (this file is the PHP line-by-line reading function code) is as follows:

$file = fopen("welcome.txt", "r") or exit("Unable to open file!"); 
//Output a line of the file until the end is reached 
while(!feof($file)) 
{ 
 echo fgets($file). "<br />"; 
} 
fclose($file); 

The code for PHP to delete spaces on the right line by line is as follows:

<&#63;php
 $file=@fopen("demo.txt","r") or exit("file don't exit");
 $tmpstr="";
 while(!feof($file)){
 $tmpstr .= rtrim(fgets($file))."\n";
 }
 fclose($file);
 file_put_contents("filetmp.txt",$tmpstr);
&#63;>

After running, the file with the spaces on the right deleted can be saved to filetmp.txt

Supplement:

You can also edit and save files with spaces on the right in the eclipse environment, and the spaces on the right can be automatically deleted without coding. More convenient.

I hope this article will be helpful to everyone in PHP programming.

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