vb.org Archive

vb.org Archive (https://vborg.vbsupport.ru/index.php)
-   vB3 Programming Discussions (https://vborg.vbsupport.ru/forumdisplay.php?f=15)
-   -   Calling specific DB entries (https://vborg.vbsupport.ru/showthread.php?t=64868)

kamu 05-08-2004 03:57 AM
Calling specific DB entries
 
I'm really new at PHP, I just bought a book to help me modify my boards a little bit. To practice, I tried calling user ID #1 from the database and posting it on the forum home.

I know this may look way off but here's what I did.

PHP Code:
// Locate Forum Administrator
  $findadmin = mysql_query ($adminquery);
  $adminquery = "SELECT username FROM user WHERE userid = '1'";
  $whosadmin = "The administrator of this forum is $findadmin"; 
I added this into index.php and added the variable $whosadmin to the forumhome template.

It's appearing on my board as "The administrator of this forum is" - and stops at the good part >.<


What did I miss or where did I mess up?

filburt1 05-08-2004 04:08 AM
Quote:
Originally Posted by kamu
I'm really new at PHP, I just bought a book to help me modify my boards a little bit. To practice, I tried calling user ID #1 from the database and posting it on the forum home.

I know this may look way off but here's what I did.

PHP Code:
// Locate Forum Administrator
  $findadmin = mysql_query ($adminquery);
  $adminquery = "SELECT username FROM user WHERE userid = '1'";
  $whosadmin = "The administrator of this forum is $findadmin"; 
I added this into index.php and added the variable $whosadmin to the forumhome template.

It's appearing on my board as "The administrator of this forum is" - and stops at the good part >.<


What did I miss or where did I mess up?
Except for the query (but there's a slight problem there too), you are off. :)

The correct code:
PHP Code:
$result = mysql_query("SELECT username FROM user WHERE userid = 1");
$user = mysql_fetch_array($result);
$adminusername = $user['username'];

$admintext = "The administrator of this forum is $adminusername."; 
What I changed (other than some variable names but yours are not that bad):
  1. The correct procedure is execute the query, saving the result to a variable, and then save the result of mysql_fetch_array(that result) to another variable. mysql_fetch_array() returns one resulting row of the query as an array, where each array key corresponds to a column name in the query.
  2. Do not use quotes for numeric columns in MySQL.
If you are using a vB-powered page, then replace mysql_query() with $DB_site->query() and mysql_fetch_array() with $DB_site->fetch_array().[/list]

ZranX 05-08-2004 04:09 AM
Use this code instead.
PHP Code:
// Locate Forum Administrator 
$findadmin = $DB_site->query_first("
    SELECT username 
    FROM user 
    WHERE userid = '1'
"); 

$whosadmin = 'The administrator of this forum is ' . $findadmin['username']; 
I'm sure as you learn php some more you will find an infinite amount of other methods of doing this but this will do for now. :p

EDIT: Wrote this post when there was no reply. ;)

kamu 05-08-2004 04:24 AM
Thanks guys, your examples really helped me out. Your prompt responses are greatly appriciated.


All times are GMT. The time now is 08:31 AM.

Powered by vBulletin® Version 3.8.12 by vBS
Copyright ©2000 - 2025, vBulletin Solutions Inc.

X vBulletin 3.8.12 by vBS Debug Information
  • Page Generation 0.01117 seconds
  • Memory Usage 1,732KB
  • Queries Executed 10 (?)
More Information
Template Usage:
  • (1)ad_footer_end
  • (1)ad_footer_start
  • (1)ad_header_end
  • (1)ad_header_logo
  • (1)ad_navbar_below
  • (4)bbcode_php_printable
  • (1)bbcode_quote_printable
  • (1)footer
  • (1)gobutton
  • (1)header
  • (1)headinclude
  • (6)option
  • (1)post_thanks_navbar_search
  • (1)printthread
  • (4)printthreadbit
  • (1)spacer_close
  • (1)spacer_open 
Phrase Groups Available:
  • global
  • postbit
  • showthread
Included Files:
  • ./printthread.php
  • ./global.php
  • ./includes/init.php
  • ./includes/class_core.php
  • ./includes/config.php
  • ./includes/functions.php
  • ./includes/class_hook.php
  • ./includes/modsystem_functions.php
  • ./includes/class_bbcode_alt.php
  • ./includes/class_bbcode.php
  • ./includes/functions_bigthree.php 
Hooks Called:
  • init_startup
  • init_startup_session_setup_start
  • init_startup_session_setup_complete
  • cache_permissions
  • fetch_threadinfo_query
  • fetch_threadinfo
  • fetch_foruminfo
  • style_fetch
  • cache_templates
  • global_start
  • parse_templates
  • global_setup_complete
  • printthread_start
  • bbcode_fetch_tags
  • bbcode_create
  • bbcode_parse_start
  • bbcode_parse_complete_precache
  • bbcode_parse_complete
  • printthread_post
  • printthread_complete