first line

Anon

I need to put a number on the first line of a file and some information on the lines under it. How can I just read the number and leace out the other information if I don't know what the number is?

Anon

Not quite sure what you mean.

ie. test.tmp

123
This is a temp file
kjljhsadkjfhsadljfsakjdflshadlf
lksadhfljsadfjsajdflsadfhshadj
iuwuyriuwriuyweruiyqwiryqw

,nzxccvbzxmvbmnxzvbxcvm

You just wan to read the

123
This is a temp file

just read the first X number of bytes.

<?
$fp = fopen ("/tmp/test.tmp", "r");
$cont = fread ($fp, 100);
$data = explode("\n", $cont);
$num = $data[0];
$info = $data[1];
$extra = $cont;
$extra = ereg_replace($data[0], '', $extra);
$extra = ereg_replace($data[1], '', $extra);
echo "$num<br>\n";
echo "$info<br>\n";
echo "$extra<br>\n";
fclose ($fp);
?>

$extra will only have the extra data upto 100bytes.

Look for more info at
http://www.php.net/manual/function.fopen.php
http://www.php.net/manual/function.fread.php

Chris Lee

Anon

OK, if that is the file, all I want is the 123, but the 123 could be any size any amount of numbers. How can I do that?

Anon

You can read the file one line at a time by calling
fgets(). (Which, BTW, is right there on the Filesystems
manual page...)

Anon

There must be some delimiter right?

ie.
12312121313\n
asdhflahdfjlashlfkjasjfhaslkjfhlasf

ie.
1245645634\n\r
oyoteryoitweutitiueriuoitu

ie.
<text>1231241266788</text>\n
xzbvmnzbmvnbzxmnbvmnzxv

There must be some delimiter, either "\n", "\r", "\r\n", "\n\r", "</" etc, etc.

If there is NO way to tell when the number stops and the data starts then your dealing with a file of fully random junk, if so you may as well guess at the sze, cause you wont find it.

If the number stops after the first "\n" then easy.

$data = fread($fp, filesize($fp));
$tempdata = explode("\n", $data);

$num = $tmpdata[0];
$data = ereg_replace($tmpdata[0], $data);

right?

Chris Lee