Another good way to do that is to load the file in the database.
The cities are a constant, and you can have them loaded in the database by a
script that check if they exist, if not create a new row with the new city;
if exist you update the data only...
Because if each time that a user goes to a page and this script check in the
text for a specific city, it would be very slow... it would be easier, in my
point of view, that the same script that grab the file from the server also
update the data in the database table. This will give you more power like,
the time that was updated, number of times per day and etc, that you can
show to your users.
Have fun,
Rom
----- Original Message -----
From: Glen Scott <[EMAIL PROTECTED]>
To: James Holloway <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Tuesday, January 16, 2001 10:15 AM
Subject: Re: [PHP] Reading specific data from a .txt file into PHP
James,
The trouble is, that there are about 3000 cities in the text file. I'm
>assuming that I fill use fopen(); and fread(); to open and read the files,
>but does anyone know of a way of singling out one line (say:
>
>CYGL 161346Z 34004KT 15SM -SN BKN011 BKN030 RMK SF6SC1
>
>) from the whole text file? Like if a variable, $city = CYGL, is it
>possible to then go to that one line in the text file and read all the
>information from just one line? I'm pretty confident I could then split
the
>information up into readable variable using the split(); function :)
Assuming the first field (i.e. CYGL) is unique, just read each line and
check using a regular expression whether it matches the city you
require. If it matches, you can stop reading the file and do whatever you
need to do with the line.
Regards,
Glen
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