[SOLVED] PHP, TXT File Read

[jkewlo]

hey guys, Kinda wondering on how I should go about doing this.

 

I have a txt file which I want to read

 

in the txt file it has

 

501#

A potion made from ground Red Herbs that restores ^000088about 45 HP^000000.

^ffffff_^000000

Weight :^777777 7^000000

#

 

how would I go about pulling the info via the id 501

there is a database with these ID's to match but no description field.

 

if you could help me that would be great

[Masna]

fread(). You'll have to parse the return string manually.

[jkewlo]

can you give me some example please

[Masna]

An example of what?

[jkewlo]

Well here is the link I have saved the txt file to my computer to run from my localhost

 

http://opensvn.csie.org/EnglishTranslation/English/idnum2itemdesctable.txt

 

How would I go about finding the correct id in a txt file. I have never used fread() and would be completly lost as in how to do it

[Masna]

I've never used fread() either. That's what the docs are for. php.net/fread

 

Anyway...

 

fread returns a string that contains the contents of the file. So...

 

$contents_of_file = fread("file.txt");

 

From there, you can very easily parse $contents_of_file (using, most likely, explode()).

[jkewlo]

Yeah, So I can not figure this out. How will I be able to read the certain line? in a txt file?

[.josh]

$file = file_get_contents('filename.txt');
preg_match('~501#[^#]*#~s',$file,$match);

[jkewlo]

Ah kick ass so would it be possible to do like

 

 

$id = $_GET['id'];
$sql = "SELECT * FROM item_db WHERE id = '". $id ."'";
$result=mysql_query($sql);
while($rows = mysql_fetch_array($result)){

$file = file_get_contents('filename.txt');
preg_match('~'". $id ."#[^#]*#~s',$file,$match);

 

??

[.josh]

it's a good thing you went ahead and asked instead of just trying it out, because running that code would have blown up your server.

[BobcatM]

How about trying to run it and see what you get?

[jkewlo]

well ill run it on my localhost?!? what do u mean it will blow up my server?

[.josh]

Your server is the computer you are running the script on, as it requires a server to run it.  And I thought that the concept of something blowing up was rather straight forward. 

[BobcatM]

what do u mean it will blow up my server?

 

haha...

 

Crayon you are awsome.

[jkewlo]

lol, well i know what a server is and im running it on my local host then will drop it on my server. but when someone sways blowing things up i tend to duck ><

[jkewlo]

I get a parser error on line 86

 

</td><td colspan=9 class='bb'  valign='top'>". $file = file_get_contents('idnum2itemdesctable.txt');

line 86: preg_match('~501#[^#]*#~s',$file); ."</td></tr>

[jkewlo]

I can get it to display by $file but that does the whole txt file.and if i do $match = preg_match then it will display 1 or 0

 

this is the format for everything

 

501#

A potion made from ground Red Herbs that restores ^000088about 45 HP^000000.

^ffffff_^000000

Weight :^777777 7^000000

#

502#

A potion made from ground Red and Yellow Herbs that restores ^000088about 105 HP^000000.

^ffffff_^000000

Weight :^777777 10^000000

#

503#

A potion made from ground Yellow Herbs that restores ^000088about 175 HP^000000.

^ffffff_^000000

Weight :^777777 13^000000

#

504#

A potion made from ground White Herbs that restores ^000088about 325 HP^000000.

^ffffff_^000000

Weight :^777777 15^000000

#

505#

A potion made from ground Blue Herbs that restores ^000088about 60 SP^000000.

^ffffff_^000000

Weight :^777777 15^000000

#

506#

A potion which cures ^000088Poison^000000, ^000088Silence^000000, ^000088Blind^000000 and ^000088Confusion^000000 effects.

^ffffff_^000000

Weight :^777777 7^000000

#

say you look up Green Potion being id 506 and in the txt file it is 506# I cant seem to get it to work, and I dont want to add all this into the database

[.josh]

That's because preg_match returns true on match, false on not match, if you assign it to a variable.  The 3rd argument is where it assigns what it matched.  Coincidentally, that's where I put $match. 

 

One of the great things about the php manual is that you can do for instance, http://www.php.net/preg_match and it will take you straight to the manual entry for the function.  And one of the great things about the manual is that it tells you all kinds of neat things like what functions there are, what they do, how to use them, etc... it's a revolutionary concept that I hope catches on, because of its superb usefulness.

[jkewlo]

yeah, I tend to go there. but I also tend to get lost in all of it ><, I will fiddle with this some more and try and get this!

 

if you have anymore suggestions please let me know

[.josh]

if you have anymore suggestions please let me know

 

You mean, other than telling you why what you did won't work, what you should do, and providing you a reference link? Sorry, think that's about the end of the line.

[jkewlo]

It's now printing ARRAY

[.josh]

That's because preg_match returns an array, just like the manual says.

[jkewlo]

so I can get it to display at random, but cannot seem to get it to select by the id in the txt file. I have read the manual with no luck

 

$file = file_get_contents('idnum2itemdesctable.txt');
$array = explode("". $row->id ."", $file);

$random = rand(0, count($array));
$desc = $array[$random];

[jkewlo]

yeah, So sorry to come back to this, I have tried several things with no luck still,

[Maq]

yeah, So sorry to come back to this, I have tried several things with no luck still,

 

Sure.  You want a random id i.e. - 501#, 1064#.  Assuming you the ids are always 3-4 digits long and end with a #, you can you this:

 

$file = file_get_contents('http://opensvn.csie.org/EnglishTranslation/English/idnum2itemdesctable.txt');
preg_match_all("~\d{3,4}#~", $file, $matches);
$random = rand(0, count($matches[0])-1);
$desc = $matches[0][$random];
echo $desc;

?>

 

Why aren't you storing all this in a database?