modify text tile using PHP

[royh]

Hi guys,

If there is a text file containing the text:
breakfast=cereal

I want to use a PHP script to search for the value breakfast and modify the value to burrito:

e.g.
breakfast=burrito from a PHP file.

Is this possible?

[bubblenut]

<bubblenut voice="dodgy mexican">Oh yes</bubble>
first you need to open a handle on the file and one on a tmp file to write out to (slower if you're using small files but safer if you're using big files because the memory footprint is kept low)

$fh1=fopen($filename,'r');
$fh2=fopen('./tmp','w');

then read in the contents from it while searching for "breakfast"

while($data=fgets($fh1)) {
  //if the line begins with "breakfast=cereal"
  if(preg_match('/^breakfast=cereal/',$data)) {
    $data="breakfast=burrito\n";
  }
  fwrite($fh2,$data);
}
//copy ./tmp over the original file
exec('mv ./tmp '.$file);

HTH
Bubble

[royh]

Hi bubble,

Is it going to work if I replace
' if(preg_match('/^{breakfast=cereal/',$data'}

with a regular expression?

e.g. if(preg_match('/^{breakfast=(.*)/',$data}

Because I will have no idea if I am going to have breakfast=taco
in the file.

say I have the text file containing:

breakfast=taco
lunch=taco
dinner= KFC

or

breakfast=cereal
lunch=taco
dinner= KFC

I wanted to have a function to be able to be smart enough to modify the breakfast.

BTW, that is really what I am having everyday. Tacos and KFC.
😉

Originally posted by bubblenut
<bubblenut voice="dodgy mexican">Oh yes</bubble>
first you need to open a handle on the file and one on a tmp file to write out to (slower if you're using small files but safer if you're using big files because the memory footprint is kept low)

$fh1=fopen($filename,'r');
$fh2=fopen('./tmp','w');

then read in the contents from it while searching for "breakfast"

while($data=fgets($fh1)) {
  //if the line begins with "breakfast=cereal"
  if(preg_match('/^breakfast=cereal/',$data)) {
    $data="breakfast=burrito\n";
  }
  fwrite($fh2,$data);
}
//copy ./tmp over the original file
exec('mv ./tmp '.$file);

HTH
Bubble [/B]