reading a file

[Christian Christmann]

Hi,

I have a file which has a bunch of entries (student's data). Its structure
looks like

Number1|ID|name |surname|emaila ddress

As can be seen, the entries are seperated by a "|".

Now I would like to create 5 arrays where I store all the entries
seperatly, for instance an array for the ID, one for the name ....

How do I read out the file and save the data to the arrays?

Thanks

Christian

[Daniel Tryba]

Re: reading a file

Christian Christmann <plfriko@yahoo. de> wrote:[color=blue]
> I have a file which has a bunch of entries (student's data). Its structure
> looks like[/color]

Homework?
[color=blue]
> Number1|ID|name |surname|emaila ddress
>
> As can be seen, the entries are seperated by a "|".
>
> Now I would like to create 5 arrays where I store all the entries
> seperatly, for instance an array for the ID, one for the name ....
>
> How do I read out the file and save the data to the arrays?[/color]

Take a look at the filesystem functions:

http://nl2.php.net/manual/en/ref.filesystem.php

A simple (but surely not the most memory efficient way)

-file() to read the datafile in an array
-for(each) to loop through the entries
-explode to seperate the entries per line
-add those (for(each) loop) to your per type arrays

fopen/fgetcsv would be more efficient.

--

Daniel Tryba

[Shawn Wilson]

Re: reading a file

Christian Christmann wrote:[color=blue]
>
> I have a file which has a bunch of entries (student's data). Its structure
> looks like
>
> Number1|ID|name |surname|emaila ddress
>
> As can be seen, the entries are seperated by a "|".
>
> Now I would like to create 5 arrays where I store all the entries
> seperatly, for instance an array for the ID, one for the name ....
>
> How do I read out the file and save the data to the arrays?[/color]

This should work (UNTESTED):
$num = array();
$id = array();
$name = array();
$surname = array();
$email = array();

$arr = file('path/to/file');
$arrcount = count($arr);

foreach($arr as $val)
list($num[], $id[], $name[], $surname[], $email[]) = split('|', $val);


This is a bit shorter but doesn't give you 5 seperate arrays (UNTESTED):

$newarray = array();

$arr = file('path/to/file');

foreach($arr as $val)
$newarray[] = split('|', $arr);


I will leave the error checking up to you...

Shawn

--
Shawn Wilson
shawn@glassgian t.com

http://www.glassgiant.com