Guidance with multiple PHP queries - php

Question

I'm trying to display the results from 3 separate queries in 3 adjacent <div> containers. The three queries are as follows:
$query="SELECT * FROM students WHERE WeekOne='employer'";
$query="SELECT * FROM students WHERE WeekTwo='employer'";
$query="SELECT * FROM students WHERE WeekThree='employer'";
Desired output:
WEEK ONE ----- WEEK TWO ----- WEEK THREE
Result 1 ---------- Result 1 ----------- Result 1
Result 2 ---------- Result 2 ----------- Result 2
(etc...)
Can anybody help me with this? I've seen the multi_query on PHP manual but have no idea how to implement this. Many thanks.
#Emmanuel G
<?
$user = "xx";
$user_password = "xx";
$db_name = "xx";
$db = new mysqli ("xx", $user, $user_password, $db_name);
$queries = array(
"SELECT * FROM students WHERE WeekOne='$Name'",
"SELECT * FROM students WHERE WeekTwo='$Name'",
"SELECT * FROM students WHERE WeekThree='$Name'"
);
// iterate through the queries and their results
foreach($queries as $query){
$result = $mysqli->query($query);
echo '<div>'; // open that div up
while($row = $result->fetch_assoc()){ // gives u an array hoorah!
echo '<pre>'.print_r($row, true).'</pre>'; // just to look at it
echo "<p>{$row['FirstName']}</p>"; // just an example
}
echo '</div>'; // close it up
}
?>

Answer 1

The easiest way is change the query to this:
$query="SELECT * FROM students WHERE WeekOne='employer' OR WeekTwo='employer' OR WeekThree='employer'";
And then format the output accordingly.

Answer 2

Yes, change your query to bring your all result in one query request, then you manipulate from the data result, hitting multiple time for simple answer to the server is not a best practice, because your query is very simple.
but for your question
multi_query($query) //you can use this
have a look here http://suite101.com/article/how-tor-run-multiple-mysql-queries-with-php-a105672

Answer 3

To display it just iterate over each individual result and place that into a div. To make them adjacent you would add some css to your div's to float them since divs are inherently block elements and don't line up horizontally without some help.
Assuming you already have your database connection set up and should be using mysqli or the such you could generate your markup like so:
// u should try to make this one query but that's irrelevant to the question
// so I'll leave that to you to do later
$queries = array(
"SELECT * FROM students WHERE WeekOne='employer'",
"SELECT * FROM students WHERE WeekTwo='employer'",
"SELECT * FROM students WHERE WeekThree='employer'"
);
// iterate through the queries and their results
foreach($queries as $query){
if($result = $mysqli->query($query)){// only do stuff if you get a result
echo '<div>'; // open that div up
while($row = $result->fetch_assoc()){ // gives u an array hoorah!
echo '<pre>'.print_r($row, true).'</pre>'; // just to look at it
echo "<p>{$row['data']}</p>"; // just an example
}
echo '</div>'; // close it up
// mysqli free the result to prep for the next one
$result->free();
} else {
echo "Query failed to return results:\n$query\n";
}
}

Answer 4

i am guessing you are passing employer as URL parameter , so in either way you can also pass which week you want to compare with, let's say
$week = $_GET['weekOne'];
$employer = $_GET['employer'];
$query="SELECT * FROM students WHERE $week= $employer";
make sure you escape your data before executing query,to avoid sql injections
i hope it will help you. Thanks