edit text files with php

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May 13th, 2003, 05:45 PM

tikelele

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Join Date: May 2003

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edit text files with php

I have the following example:
<?php
// Places the password into the mig.cnf file in the following format
// $protect['./mhtest']['mark'] = 'NLJpD6Gw6tYS2';

$cust_name = 'Harris';
$dir = 'mhtest';
$user = 'mark';
$pass = 'tikelele';
$salt = 'MG';
$passwd = crypt($pass, $salt);

$path = ("\$protect['./$dir']['$user']");

$fp = fopen("hello.txt", "a+");
fwrite($fp,"//$cust_name"."\n" .$path." = "."'" .$passwd."'".";" ."\n");

fclose($fp);
echo (done);

?>

I am trying to use it to append this text file:

<?php
blah blah.
blah blah.
blah blah.
?>

but it always appends to the bottom outside the closing php tag "?>" like this:

<?php
blah blah.
blah blah.
blah blah.
?>
//Harris
$protect['./mhtest']['mark'] = 'MGojrkbOSMreY';

I need it to append inside the tag like this:

<?php
blah blah.
blah blah.
blah blah.
//Harris
$protect['./mhtest']['mark'] = 'MGojrkbOSMreY';
?>

Who can help please?

Last edited by tikelele : May 13th, 2003 at 05:49 PM.

May 13th, 2003, 09:26 PM

avit

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Join Date: Nov 2002

Location: Squamish, BC

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PHP Code:


		
			
 $fp = fopen("hello.txt", "a+");

fseek($fp, -2);

fwrite($fp,"//$cust_name"."\n" .$path." = "."'" .$passwd."'".";" ."\n");

fwrite($fp, "?>");

This assumes that your files end exactly with the 2 characters "?>" by seeking the pointer back 2 spaces, then writing your stuff and appending the closing tag again. If you do it this way, beware of empty spaces or lines at the end of your file. If you need it to be "smarter" then you'll have to read the file (or just the last X bytes of the file), then grep for the offset of the last "?>", and then place the file pointer there.

May 14th, 2003, 08:21 AM

tikelele

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I tried using the fseek flag that you sent--however it still appended to the end of the file.

Thank you for the input though.
BTW--tell me more about the other option you suggested.

May 15th, 2003, 03:40 AM

avit

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Location: Squamish, BC

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Sorry, I had to check the online documentation. Heh.

PHP Code:


		
			
 fseek($fp, -2, SEEK_END);

Regarding the other option, try something like this:

PHP Code:


		
			
// put your stuff away into a nice variable:

$stuff = "//$cust_name"."\n" .$path." = "."'" .$passwd."'".";" ."\n";



// open your file:

$fp = fopen("hello.txt", "a+");



// seek 10 characters back from the end:

fseek($fp, -10, SEEK_END);



// read 10 bytes:

$fp_tail = fread($fp, 10);



// split those 10 bytes on every closing tag:

$tail_array = split('\?>', $fp_tail);



// add your $stuff to the second-last chunk:

$tail_array[count($tail_array) -2] .= $stuff;



// concatenate the string back together with closing tags as glue:

$fp_tail = implode('?>', $tail_array);



// seek back to where we want to write from (reading moved it):

fseek($fp, -10, SEEK_END);



// write the new tail to the file:

fwrite($fp, $fp_tail);



// close it:

fclose($fp);

May 15th, 2003, 06:56 AM

tikelele

Junior Member

Join Date: May 2003

Posts: 3

Time spent in forums: < 1 sec
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i was not able to get either solution to work--it still appended to the end and I got the following error message:

Warning: REG_BADRPT:rrepetition-operator operand invalid in d:\"i am replacing the path"... on line 42

also addind SEEK_END appended at the end.

any suggestions

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