Reading a single line from a file

[RedBaron]

Hello,

I'm a noobie to PHP, and I'm trying to convert my asp scripts to php. In asp I can read a text file line by line like this.

<%
Set fs=Server.CreateObject("Scripting.FileSystemObject")

Set f=fs.OpenTextFile(Server.MapPath("FileName.txt"), 1)
strLine1 = (f.ReadLine)
strLine2 = (f.ReadLine)
strLine3 = (f.ReadLine)
f.Close

Set f=Nothing
Set fs=Nothing
%>

I need to assign line 1 to one variable line 2 to a different variable and so on. Any help is greatly appreciated. Btw, I'm using php4.

Thanks

[mincklerstraat]

check out function file() - [be2.php.net...]

$var = file('filename');
then $var[0] is the first line, $var[1] the second, etc;
echo '<pre>';
foreach($var as $k => $v){
echo '<br />line '.$k is '.htmlentities($v);
}
echo '</pre>';

have fun with file() and do some cool and groovy stuff with arrays.

[coopster]

And Welcome to WebmasterWorld, RedBaron!

[RedBaron]

Thanks guys and I'm glad to be a new member of WebmasterWorld.com.

I'm able to read the lines correctly now, but after I edit a line and try to write it back to the file it screws up on me.

$var = file('docs/FileName.txt');

$LineVar1 = $var[0] + 1;
$LineVar2 = $var[1];
$LineVar3 = $var[2];
$LineVar4 = $var[3];

$Data = $LineVar1 . $LineVar2 . $LineVar3 . $LineVar4;

$file = 'docs/FileName.txt';
$file = fopen($file, 'w');
fwrite($file, $Data);
fclose($file);

- Text file before -
1
2
3
4

- Text file after -
22
3
4

Thanks in advance.

[mykel79]

The file() function leaves the newline character at the end of each line. So you would have to trim the newline, do the math, then add it again. Something like:

$LineVar1 = trim($var[0]) + 1."\n";