Deleting parts of a file with php

Question

After using file_get_contents to write to a html file, I need to delete certain parts of this files contents because the paths to css and images has changed.

So I have lines as below :

 <link href="/Elements/css/main.css" rel="stylesheet" type="text/css">
  <image src="/Elements/images/image1.gif" />

I would like to remove the: '/Elements/' part of these two lines, and others so I will have the correct paths.

thanks

R

Answer 1

And what exactly is your problem? Just use str_replace or preg_replace (use the latter only if you need regular expressions, ie. if it's not a simple search & replace) on the string you got from file_get_contents, and save it back to disk.

ie.

$text = file_get_contents("yourfile.html");
$text = str_replace("/Elements/", "", $text);
file_put_contents("yourfile.html", $text);

Answer 2

Hi there, i did this once for editing BIND zone files. The best solution is reading the file into a big array, find the lines you want to delete. Unset or edit those lines and push the array back into a file.

This is how you read a file into an array:

$html = file("something.html");

Find the line you want like so:

foreach($html as $key => $line)
{
  $html[$key] = str_replace("/Elements/", "", $line); 
}

then write it all back to a file

$fp=fopen("something.html","w+");
foreach($html as $key => $value)
{
   fwrite($fp,$value."\t");
}

if you know regular expressions, you could also look into that (that's what i used). Then use preg_replace.

Good luck