newbie question about multiple queries
Posted on
16th Feb 2014 07:03 pm by
admin
hi everyone,
I'm sorry to ask such a basic question, but I'm young and trying to learn php on my own. I bought the PHP6 Bible and I'm doing a tutorial on multiple-queries.
I followed the book exactly, but I'm not getting the right result.
here's my code:
Code: [Select]<?php require_once('Connections/mydb.php'); ?>
<?php
if (!function_exists("GetSQLValueString")) {
function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "")
{
$theValue = get_magic_quotes_gpc() ? stripslashes($theValue) : $theValue;
$theValue = function_exists("mysql_real_escape_string") ? mysql_real_escape_string($theValue) : mysql_escape_string($theValue);
switch ($theType) {
case "text":
$theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
break;
case "long":
case "int":
$theValue = ($theValue != "") ? intval($theValue) : "NULL";
break;
case "double":
$theValue = ($theValue != "") ? "'" . doubleval($theValue) . "'" : "NULL";
break;
case "date":
$theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
break;
case "defined":
$theValue = ($theValue != "") ? $theDefinedValue : $theNotDefinedValue;
break;
}
return $theValue;
}
}
?>
<?php
function display_cities($database_mydb, $mydb)
{
mysql_select_db($database_mydb, $mydb);
$country_query = sprintf("Select 'id', continent, countryname from country order by continent, countryname");
$country_result = mysql_query($country_query, $mydb) or die(mysql_error());
print("<table border=1>n");
print("<tr><th>continent</th><th>country</th><th>cities</th></tr>");
while ($country_row = mysql_fetch_row($country_result))
{
$country_id = $country_row[0];
$continent = $country_row[1];
$country_name = $country_row[2];
print("<tr style='background:red'align=left valign=top>"); print("<td>$continent</td>"); print("<td>$country_name</td>");
print ("<td style='background:blue'>");
$city_query = "select cityname from city where countryID = $country_id order by cityname"; //<----Something with this line is throwing it off!
$city_result = mysql_query($city_query, $mydb) or die(mysql_error());
while ($city_row = mysql_fetch_row($city_result))
{
$city_name = $city_row[0];
print("$city_name
");
}
print("</td></tr>");
}
print("</table>n");
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Untitled Document</title>
</head>
<body>
<?php
display_cities($database_mydb, $mydb)
?>
</body>
</html>
I've narrowed my problem down to this line "$city_query = "select cityname from city where countryID = $country_id order by cityname";" but that's how the book shows it. But, when I change that line of code to something like "$city_query = "select cityname from city where countryID = 4 order by cityname", then I get all of the cities with a countryID of 4, but they ALL print over and over again in each <td> for the duration of the loop.
I have about 15 entries in the "city" database, and they're all supposed to be echoing into the table, inline with their corresponding country.
This has been driving me nuts for hours, and I've been searching online for an answer. I'm sure I'm overooking something very simple, but please go easy on me, this is my first time attempting this! If someone sees the problem, can you please let me know?
thanks
No comments posted yet
Your Answer:
Login to answer
235 
19 
Other forums
split values
I have values that are returned to me in this format:
name=>test,age=>49
Quick Syntax Question
Hi folks,
I'm getting the following error: "unexpected T_LNUMBER". I'm trying to b
How to add an image/C++ OpenGL?
Hi,
I have been trying to look online for this and, so far, I haven't found anything usef
Character Sets/Collations Stuff
Can someone please give me a check list of things I must do to setup all the charset stuff for my ph
How to get all server headers like Live http Headers does
Hey all, like many of you I use the Firefox addon "Live http Headers". I'm trying to write
Table Control
Hi Guru's,
I've created a Module pool program, which contains the Table Control.
Remove Rows From Database ad
Hi All,
I have this:
Code: [Select]<?php
session_start();
include('../com
Little problem with form insertion in MySQL, Please help!!!
Hi!,
I'm a little bit new with php and I have a little issue here. I created a webform to ins
Posting Serialized Data Not Working
I am trying to send an object from one PHP file to another using POST. I serialize the object and th
How to return to a previous page after running a PHP script
I'm having a bit of a melt down here because I think this should be really easy but can't work it ou
