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
Getting rid of quotes when printing data
Hi Guys, I use the filter_var FILTER_SANITIZE_STRING to filter the textarea input. The function esca
Error in write byte array into document in SM58
Hi Gurus,
Getting the following error status in Transactional RFC (SM58) ..... *Error i
Remove letter from numeric textbox
I have a textbox that will search the employee database by entering in the employee ID and it will r
help with database debug pls
Parse error: syntax error, unexpected T_ELSE in /home/content/m/e/s/mesick/html/students/05/php/chec
I need desperate help with this php code integrated with flash please
Can someone please help me with this php code which I have been stuck on for weeks . I am trying to
mysql_real_escape_string making variable equal nothing
i post a form and i post the variable:
Code: $var = $_POST[variable];then i echo $var its what i
Need help in Generating Combinations
Need help generating all possible combination of names in an array
Lets say i have the follow
Progress bar for webpage
Hi,
I want to implement a progress/waiting bar on my webpage - exactly the same thing that the Mi
convert pps to wsf with php'how?
hi
i want to convert with php
PowerPoint file to swf file(flash)
how please?
thank!!!
Session problem?!?
Hello All! I am very new to the php world but I am working on fixing things that a previous programm
