Question

Is it possible to replace part of text or HTML file with PHP? I’m loading portion of file into text editor by using preg_match to extract text only between certain tags. Now when finish editing I want to update the same file with changes made, and replace the same part previously loaded.

Answer 1

since you’re using preg_match, you can use the preg_replace after editing and store it to the file.

for example if you are loading a UI for that then you might be doing this on file1.php

$data = file_get_contents($filename);
//do regex here
$values = preg_match($pattern,$data);
//do necessary display here for the form I assume

then on file2.php that receives the request on the form, you do exacly the same thing

$data = file_get_contents($filename);
//compose the string to you will have to replace to the pattern
$data = preg_replace($pattern,$replace,$data);
//then write to the same file
file_put_contents($filename,$data);

these are just theoretical, kindly check with the php manual for correct syntax or parameters