[umarmir_123]

hi,
i want to search for a particular string in a file and then want to delete the following text
till this particular string is again encountered.my file is like this
text.txt
mail
subject:-hello
email:-what is ur name?
where do u live?ect
mail
subject:-morning
email:-come in the morning.
mail
subject:-ello
email:-what is ur fathers name?
where do u live?ect
now suppose i want to delete from the second occcurence of mail i.e
my updated file shud be like this
text.txt
mail
subject:-hello
email:-what is ur name?
where do u live?ect
mail
subject:-ello
email:-what is ur fathers name?
where do u live?ect

i hope you understood my problem.if anybody know plz help me.
if you need any further info plz let me know.
thnx

[job0107]

You can try this function:

PHP Code:

<?php
function delete_file_entry($file,$seperator,$entry)
{
 $regx_seperator = "/".$seperator."\s/";
 $text = file_get_contents($file);
 $stringParts = preg_split($regx_seperator,$text);
 for($i=1;$i<count($stringParts);$i++)
 {
  if($i != $entry){$newText .= $seperator.$stringParts[$i];}
  }
 $fh = fopen($file, 'w');
 fwrite($fh,$newText);
 fclose($fh);
 
 // This line of code is optional. Leave in if you want to see the results.//
 echo "<b><u>Old text :</u></b><p>".nl2br($text)."<p><b><u>New text :</u></b><p>".nl2br($newText);
 }
 
 
 
// Usage: Delete second mail entry. //
delete_file_entry("text.txt","mail",2);
?>

text.txt

Code:

mail
subject:-hello
email:-what is ur name?
where do u live?ect
mail
subject:-morning
email:-come in the morning.
mail
subject:-ello
email:-what is ur fathers name?
where do u live?ect

[umarmir_123]

i am encountering following error message
Fatal error: Call to undefined function: file_get_contents() in c:\apache\htdocs\ims\delete.php on line 24

[job0107]

Originally Posted by umarmir_123

i am encountering following error message
Fatal error: Call to undefined function: file_get_contents() in c:\apache\htdocs\ims\delete.php on line 24

That's because your hosting account doesn't have PHP 5.
You need to tell your hosting provider to get with the program and upgrade to the latest version of PHP.
It's FREE!!!

In the mean time, this will work with earlier versions of PHP.

PHP Code:

<?php
function delete_file_entry($file,$seperator,$entry)
{
 $regx_seperator = "/".$seperator."\s/";
 $fh = fopen($file, "r");
 while(!feof($fh)){$text .= fgets($fh);}
 fclose($fh);
 $stringParts = preg_split($regx_seperator,$text);
 for($i=1;$i<count($stringParts);$i++)
 {
  if($i != $entry){$newText .= $seperator.$stringParts[$i];}
  }
 $fh = fopen($file, 'w');
 fwrite($fh,$newText);
 fclose($fh);
 
 // This line of code is optional. Leave in if you want to see the results.//
 echo "<b><u>Old text :</u></b><p>".nl2br($text)."<p><b><u>New text :</u></b><p>".nl2br($newText);
 }
 
 
 
// Usage: Delete second mail entry. //
delete_file_entry("text.txt","mail",2);
?>

[DionDeVille]

How would the PHP5 script be adapted to find and replace one string with another?

[job0107]

Originally Posted by DionDeVille

How would the PHP5 script be adapted to find and replace one string with another?

You need to examine the code I already wrote, until you understand what it does.

If I keep writing the code for you, you aren't going to learn anything.

And if it's your intention to not learn, but have someone write the code for you,
then I charge $25.00 per hour to write what ever code you want.

[umarmir_123]

Originally Posted by job0107

You need to examine the code I already wrote, until you understand what it does.

If I keep writing the code for you, you aren't going to learn anything.

And if it's your intention to not learn, but have someone write the code for you,
then I charge $25.00 per hour to write what ever code you want.

thnx for ur help but their is a bit prblm . After deletion it mixup "mail" string with other file data. So any idea about it.