MySQL query with one variable - php

Question

I have a table called 'main_table' with 3 columns :
'player', 'points' and 'drop_date'
I have 1 variable ($date) with different values:
$date == '2012-06-01'
$date == '2012-05-01'
$date == '2012-04-01'
I Have 1 MySQL query:
$query = "
select *
from main_table
where `drop_date` > '$date'
AND `drop_date` <= DATE_ADD('$date', INTERVAL 1 YEAR)
LIMIT 1
";
GOAL :
I would like to run ONE query with different passes (1pass per value)
I have tried :
<?php
$date['date'] = '2012-06-01';
$date['date'] = '2012-05-01';
$date['date'] = '2012-04-01';
foreach($date as $title => $actual_date) {
query = "
select *
from main_table
where `drop_date` > '$actual_date'
AND `drop_date` <= DATE_ADD('$actual_date', INTERVAL 1 YEAR)
LIMIT 1
";
$result = mysql_query($query) or die(mysql_error());
}
while($row = mysql_fetch_array($result)) {
echo $row['Player'];
echo $row['Points'];
}

Answer 1

You keep overwriting the same variable over and over... and then you run the query but only fetch results for the last one. How do you expect it to work?
Try this:
$date = Array("2012-06-01","2012-05-01","2012-04-02");
foreach($date as $actual_date) {
if( $result = mysql_fetch_assoc(mysql_query("select * from `main_table` where `drop_date`>'".$actual_date."' and `drop_date`<=date_add('".$actual_date."',interval 1 year) limit 1"))) {
echo $result['Player'];
echo $result['Points'];
}
}
Note that I skipped putting the query in a variable, and putting the query result in a variable, and just one-lined the whole thing. Since you have limit 1 the query will only return one row, so there is no need to while-loop it.

Answer 2

Just move your while in the foreach loop.
<?php
$date[0] = '2012-06-01';
$date[1] = '2012-05-01';
$date[2] = '2012-04-01';
foreach($date as $title => $actual_date)
{
query = "select * from main_table where `drop_date` > '$actual_date' AND `drop_date` <= DATE_ADD('$actual_date', INTERVAL 1 YEAR) LIMIT 1";
$result = mysql_query($query) or die(mysql_error());
while($row = mysql_fetch_array($result))
{
echo $row['Player'];
echo $row['Points'];
}
}

Answer 3

Do not overwrite your values. Do this to keep all 3 values.
<?php
$date['date'][] = '2012-06-01';
$date['date'][] = '2012-05-01';
$date['date'][] = '2012-04-01';
print_r($date);
?>
OUTPUT:
Array
(
[date] => Array
(
[0] => 2012-06-01
[1] => 2012-05-01
[2] => 2012-04-01
)
)
Then use
foreach ($date['date'] as $actual_date) {
$query = "
select *
from main_table
where `drop_date` > '$actual_date'
AND `drop_date` <= DATE_ADD('$actual_date', INTERVAL 1 YEAR)
LIMIT 1";
echo $query."<br />";
}
OUTPUT:
select *
from main_table
where `drop_date` > '2012-06-01'
AND `drop_date` <= DATE_ADD('2012-06-01', INTERVAL 1 YEAR)
LIMIT 1
<br />
select *
from main_table
where `drop_date` > '2012-05-01'
AND `drop_date` <= DATE_ADD('2012-05-01', INTERVAL 1 YEAR)
LIMIT 1
<br />
select *
from main_table
where `drop_date` > '2012-04-01'
AND `drop_date` <= DATE_ADD('2012-04-01', INTERVAL 1 YEAR)
LIMIT 1
<br />