Related
I have a FORM with method POST. In the form I have two select drop-down with multiple='multiple' enabled in both so that user can make multiple selections.
Now I am using MySQL database to store data.
I am using foreach loop to iterate all the selections made.
Here is the image Select drop-down image
My code
$cid = $row['cid'];
$work_location = $_POST['work_location'];
$interest = $_POST['interest'];
foreach ($work_location as $value) {
$work = $value;
}
foreach ($interest as $value) {
$int = $value;
}
$insert_oth_data = "INSERT INTO resume_spec_data
(cid, work_location, interest)
VALUES('$cid', '$work', '$int')";
mysqli_query($con, $insert_oth_data);
echo var_export($work_location);
echo var_export($interest);
echo var_export($work);
echo var_export($int);
echo var_export( $insert_oth_data );
Here work_location and interest are the fields that will carry the multiple select values. I don't want to use implode function because it will make data extraction difficult as table grows. I want to store the values in saperate rows of database.
The problem I am facing is that data is being inserted, but the problem is when I select multiple options only one data is being inserted not all.
The result I get after inserting the data is:
array ( 0 => 'Delhi', 1 => 'NCR', )array ( 0 => 'Software development', 1 => 'Business analyst', 2 => 'Web development', )'NCR''Web development''INSERT INTO resume_spec_data(cid, work_location, interest) VALUES(\'1\', \'NCR\', \'Web development\')'
As you can compare from the image I have made multiple selections. But single data is being taken here
For reference
$work_location contains array ( 0 => 'Delhi', 1 => 'NCR', )
$interest contains
array ( 0 => 'Software development',
1 => 'Business analyst',
2 => 'Web development',
)
$work contains NCR
$int contains Web development only
$work and $int should also contains same as $work_location and $interest respectively.
One thing that I found here is that I have applied Insert query outside the foreach loop maybe that is why only one value is being taken. Since I am using multiple select drop-down here with multiple='multiple' enabled, I don't know how to do this to achieve the result I want.
Any help would be appreciated.
Your INSERT command happens once, and it occurs after your loops have all finished. So in the loops you're pointlessly re-assigning new values to the same variable, and then discarding them again without using them. Obviously if you wait until after a loop has finished, then you can't use the values which are present when the loop is running. You'll only ever see the last one which was assigned in the last run of the loop.
And you've explained that you're struggling to fix this because you don't know how to include the insert query inside the loops, because there are 2 different foreach loops.
So really I think the root cause here is that your database structure is flawed. It seems you permit different numbers of values in your form (e.g. 2 entries for work locations, then 3 entries for domains of interest, per your screenshot), and there's no particular relationship between them (e.g. does "Delhi" belong with "software development, or "business analyst", or the other one? There's no logic to explain that).
And yet, you're trying to store them in a table which inherently relates them together by storing them next to each other in rows. This will result in poor data quality because a) there's no way to decide which belongs with which, and b) if you have different numbers of entries in each field then you'll end up with gaps.
You need separate tables to store each list - one table for locations, and one table for interests, both with the Cid to link them to the master record.
This will then make it easy to use the data in you loops e.g.
foreach ($work_location as $value) {
$work = $value;
//...write query code to insert into work locations table
}
foreach ($interest as $value) {
$int = $value;
//...write query code to insert into interests table
}
I'm having the hardest time figuring this out and it's probably because I'm not using the correct terms. If someone could point me in the right direction, that would be amazing. I'm going to use a hypothetical situation to make things easier:
I have a database with two tables:
tableA contains records for a house sale (house ID,address, price, current owner ID, etc)
tableB contains records for realtors who have shown a house (house ID, realtor ID, time and date, notes, etc).
I would like to have a query that can search a current owner ID and pull down all of their houses with information on everyone who showed the house. What I would like to retrieve is a JSON array that has the info from each tableB record appended/attached/added to a single record from tableA.
For example, if I search the the houses that are owned by ownerX (who owns two houses), I would like it to return two main items with sub items for each related entry in tableB. In the example below, ownerX has two houses. The first house on 1234 Fake St had 2 different realtors make a total of 3 visits. The second house on 555 Nowhere St had 1 realtor visit twice.
Here's how I'd like to retrieve the info:
tableA - Result 1 (House at address 1234 Fake St)
tableB - Result 1 (Realtor ID 1234, etc)
tableB - Result 2 (Realtor ID 1234, etc)
tableB - Result 3 (Realtor ID 2222, etc)
tableA - Result 2 (House at address 555 Nowhere St)
tableB - Result 1 (Realtor ID 1111, etc)
tableB - Result 2 (Realtor ID 1111, etc)
Instead, what I'm getting is this:
tableA - Result 1 (House at address 1234 Fake St),tableB(Realtor ID 1234, etc)
tableA - Result 2 (House at address 1234 Fake St),tableB(Realtor ID 1234, etc)
tableA - Result 3 (House at address 1234 Fake St),tableB(Realtor ID 2222, etc)
tableA - Result 4 (House at address 555 Nowhere St),tableB(Realtor ID 2222, etc)
tableA - Result 5 (House at address 555 Nowhere St),tableB(Realtor ID 2222, etc)
I don't don't want to retrieve tableA information each time. I only need that once, then each sub-result from tableB. This is important because I'm returning the data to an app that creates a new list. I'm currently using mysqli_multi_query
$sql = "SELECT * FROM tableA WHERE ownerID = "ownerX";";
$sql. = "SELECT tableB.*, tableA.houseID FROM tableB,tableA WHERE tableB.houseID = tableA.houseID;";
Again, the actual content is just a hypothetical. I'm looking for more of a, "You're an idiot, you should be using _____" and not, "You misspelled realtor and that's probably causing the problem.".
Also, please note that I'm not asking for the results to be formatted with the dashes and parentheses as they are above. I'm just simply writing it that way so it's easier to understand. I'm looking for a way to have sub-objects in a JSON array.
Any help pointing me in the correct direction would be much appreciated! Thanks to whoever takes the time to take a stab at this!
Tony
Additional information:
Here's the code I'm using to run the query:
$sql = "SELECT * FROM clocks WHERE user_key='".$userkey."';";
$sql .= "SELECT * FROM milestones WHERE (SELECT clock_key FROM clocks WHERE user_key='".$userkey."') = milestones.clock_key";
if (mysqli_multi_query($con,$sql))
{
do
{
if ($result=mysqli_store_result($con)) {
while ($row=mysqli_fetch_row($result))
{
$myArray[] = $row;
}
echo json_encode($myArray);
mysqli_free_result($result);
}
}
while(mysqli_more_results($con) && mysqli_next_result($con));
}
UPDATE WITH ANSWER:
Thanks for #vmachan's post below, I ended up getting all of my data at once, then ran through some loops to adjust the array. I'm going to use the house/relator example from above.
I used his code to get my results ($house_id is a variable input id):
$sql = "SELECT * FROM tableA INNER JOIN tableB ON tableA.houseID = tableB.houseID WHERE tableA.houseID='".$house_id."';";
I was given an array with 5 items because tableB had 5 entries. Since there are only 2 house entries in tableA, it looked like this:
["houseID"=>"1","price"=>"50000", "owner" => "Mike G", "state"=>"CA", "realtor" => "Jane D", "visitDay"=>"Tuesday", "notes" => "They liked the house"],
["houseID"=>"1","price"=>"50000", "owner" => "Mike G", "state"=>"CA", "realtor" => "Jane D", "visitDay"=>"Wednesday", "notes" => "They loved the house"],
["houseID"=>"1","price"=>"50000", "owner" => "Mike G", "state"=>"CA", "realtor" => "Stephanie W", "visitDay"=>"Friday", "notes" => "They didn't like the house"],
["houseID"=>"2","price"=>"65000", "owner" => "Michelle K", "state"=>"AL", "realtor" => "Mark S", "visitDay"=>"Tuesday", "notes" => "They made an offer"],
["houseID"=>"2","price"=>"65000", "owner" => "Michelle K", "state"=>"AL", "realtor" => "Jim L", "visitDay"=>"Monday", "notes" => "They stole stuff"]
The first 3 elements are from tableA and don't change. So, I used a loop to basically check the houseID, if it's a new house, create a new house array item, otherwise, add the details from tableB to the current house element:
<?php
//$house is an array will hold all of our indiviaul houses and their infomation.
$houseArray = array();
//Start the foreach loop
foreach($items as $item){
//$item["houseID"] is the houseID from our database that we got from the above code.
$houseID =$item["houseID"];
//$currentID is a varible that is set after the first iteration.
//This checks to see if we're still working with the same house, or a new house.
if($currentID!=$houseID){
//Create an array to hold all of the relator visit information arrays.
//This is created within the loop as it will erased if a new houseID is found in the array.
$relatorVisitArray = array();
//This is a secondary loop that checks the same array. This time, we are only working with the new houseID that from the condition above.
foreach($items as $rv){
//This cheecks to see if there is a match between the current houseID that we're working with and the other houseIDs in the array. Since we're going through the same array that we're already iterating, it will find itself (which is good).
if($houseID==$rv["houseID"]){
//Once is gets a match, it will create a temporary array to hold the "Relator Visit" information. The array is created within the loop as it needs to be cleared through each iteration.
$tempRealitorVisit = array(
'name' => $rv["name"],
'day' => $rv["day"],
'houseID' => $rv["houseID"],
'notes' => $rv["notes"]
);
//At the end of each iteation, we add the temporary to the main $relatorVisitArray.
$relatorVisitArray[] = $tempRealitorVisit;
}
}
//At this point, the subloop has ended and we're created an array ($relatorVisitArray) which contains all of the $tempRealitorVisit arrays.
//Remember, were are still within the first loop and have determined that this is a new house.
//Now we'll create a new house array based on the current houseID in this iteration.
//This array is created within the loop because we want it to cear at the next iteation when it's determined that it's a new house.
$house = array(
'houseID' => $item["houseID"],
'owner' => $item["owner"],
'price' => $item["price"],
'location' => $item["location"],
'relatorVisits' =>
//Here, we simply add the $relatorVisitArray to a key called, "relatorVisits" (ie an array within an array).
$relatorVisitArray
);
//We then add the $house to the $houseArray.
$houseArray[] = $house;
//Finally, we set $currentID to $item["houseID"]. At the next iteration, it will check this id against the next house ID. If they are the same, this entire code will skip until a new houseID appears from your database.
$currentID= $item["houseID"];
}
}
//This prints all of the information so it's easy to read.
echo '<pre>';
print_r($houseArray);
echo '</pre>';
}
?>
In the end, I'm left with one array that contains two sub arrays. The first sub array (House 1) contains 3 sub arrays (3 visits to that house). The second sub array (House 2) contains 2 sub arrays (2 visits to that house).
I hope this helps anyone that had the same issue as me. If anyone knows of a cleaner way to do this, please post it here! Thanks for the guidance!
Tony
I think you can combine the SQL statements as shown below to JOIN the clocks and milestones tables on the clock_key for a user-provided value i.e. $userkey. Then in your code you could loop thru the results and then check for consecutive house_ids.
$sql = "SELECT * FROM clocks INNER JOIN milestones ON clocks.clock_key = milestones.clock_key WHERE clocks.user_key='".$userkey."';";
You can then use the code similar to the one in ths SO posting. You would need to change it so that inside the loop you check if the previous 'house_id' is the same as the current one and if not, you would start a new parent array other wise keep adding to the existing array. At the end of the loop you could then call the encode to get your JSON format.
Hope this helps.
I have not got time to actually write (and test!) proper code but I would suggest that you collect your data into two php associative arrays: $houses with the owner as the key and $visits with the houseID as a key. Assuming that an owner can have more than one property on the market and knowing that a realtor can pay more than one visit to each property the entries in these two arrays will then themselves be "array of array"s.
sample:
$houses={'ownerx':{'houseID_1':['address_1','price_1'],
'houseID_2':['address_2','price_2']}},
'ownery':{'houseID_3':['address_3','price_3'],
'houseID_4':['address_4','price_4']}}
};
$visits={'houseID_1':['realtorID_1','realtorID_2', ...],
'houseID_2':['realtorID_3']
};
// I used JSON notation for simplicity ...
Doing this would require you to set up a proper structure once but it will save you from querying the same data again and again. The retrieval of the data from the associative arrays should also work very efficiently.
I'll note that this is a very special case, hence the question to begin with. Under normal circumstances, such a function would be simple:
I have an array named $post_id, which contains 5 values
(Each numerical)
In order to print each value in the array, I use the following loop:
.
for ($i = 0; $i < $num; $i++)
{
echo $post_id[$i] . ' ';
}
...Which prints the following: 49, 48, 47, 46, 43
3. In my database, I have a table that looks like this:
post_categories
_____________________
post_id | category
__________|__________
43 | puppies
43 | trucks
46 | sports
46 | rio
46 | dolphins
49 | fifa
4. So, using the data in the array $post_id, I'd like to loop a database query to retrieve each value in the category column from the post_categories table, and place them into uniquely named arrays based on the "post id", so that something like...
echo $post_id_49[0] . ' ', $post_id_46[1];
...Would print "fifa rio", assuming you use the above table.
An example of such a query:
//Note - This is "false" markup, you'll find out why below
for ($i = 0; $i < $num; $i++)
{
$query = "SELECT category FROM post_categories WHERE post_id = $post_id[$i]";
fakeMarkup_executeQuery($query);
}
Why is this a "special" case? For the same reason the above query is "false".
To elaborate, I'm working inside of a software package that doesn't allow for "normal" queries so to say, it uses it's own query markup so that the same code can work with multiple database types, leaving it up to the user to specify their database type which leaves the program to interpret the query according to the type of database. It does, however, allow the query to be stored in the same "form" that all queries are, like "$result = *query here*" (With the only difference being that it executes itself).
For that reason, functions such as mysql_fetch_array (Or any MySQL/MySQLi function akin to that) cannot, and will not work. The software does not provide any form of built in alternatives either, effectively leaving the user to invent their own methods to achieve the same results. I know, pretty lame.
So, this is where I'm stuck. As you'd expect, all and any information you find on the Internet assumes you can use these MySQL & MySQLi functions. What I need, is an alternative method to grab one array from the results of a looped query per loop. I simply cannot come to any conclusion that actually works.
tl;dr I need to be able to (1) loop a query, (2) get the output from each loop as it's own array with it's own name, and (3), do so without the use of functions like mysql_fetch_array. The query itself does not actually matter, so don't focus on that. I know what do with the query.
I understand this is horrifically confusing, long, and complicated. I've been trudging through this mess for days - Close to the point of "cheating" and storing the data I'm trying to get here as raw code in the database. Bad practice, but sure as heck a lot easier on my aching mind.
I salute any brave soul who attempts to unravel this mess, good luck. If this is genuinely impossible, let me know so that I can send the software devs an angry letter. All I can guess is that they never considered that a case like mine would come up. Maybe this is much more simple then I make it to be, but regardless, I personally cannot come to an logical conclusion.
Additional note: I had to rewrite this twice due to some un explained error eliminating it. For the sake of my own sanity, I'm going to take a break after posting, so I may not be able to answer any follow up questions right away. Refer to the tl;dr for the simplest explanation of my need.
Sure you can do this , here ( assuming $post_ids is an array of post_id that you stated you had in the OP ), can I then assume that I could get category in a similar array with a similar query?
I don't see why you couldn't simply do this.
$post_id = array(49, 48, 47, 46, 43);
$result = array();
foreach($post_id as $id)
{
//without knowing the data returned i cant write exact code, what is returned?
$query = "SELECT category FROM post_categories WHERE post_id = $id";
$cats = fakeMarkup_executeQuery($query);
if(!empty($cats)) {
if(!isset($result[$id])){
$result[$id] = array();
}
foreach( $cats as $cat ){
$result[$id][] => $cat;
}
}
}
Output should be.
Array
(
[49] => Array
(
[0] => fifa
)
[46] => Array
(
[0] => sports
[1] => rio
[2] => dolphins
)
[43] => Array
(
[0] => puppies
[1] => trucks
)
)
Ok, assuming you can run a function (we'll call it find select) that accepts your query / ID and returns an array (list of rows) of associative arrays of column names to values (row), try this...
$post_categories = [];
foreach ($post_id as $id) {
$rows = select("SOME QUERY WHERE post_id = $id");
/*
for example, for $id = 46
$rows = [
['category' => 'sports'],
['category' => 'rio'],
['category' => 'dolphins']
];
*/
if ($rows) { // check for empty / no records found
$post_categories[$id] = array_map(function($row) {
return $row['category'];
}, $rows);
}
}
This will result in something like the following array...
Array
(
[49] => Array
(
[0] => fifa
)
[46] => Array
(
[0] => sports
[1] => rio
[2] => dolphins
)
[43] => Array
(
[0] => puppies
[1] => trucks
)
)
So, here is the deal. I searched everywhere for the answer, but didn't find antyhing concrete ehough for my case, maybe i'm googling something wrong. Btw, i wanted phpmyadmin to be NOT in english, but it automatically changes back to cro... so... :/ hope you will understand enough to help me with solution...
Link to my table
TIP: I know how to get a solution through mysql, so you don't have to write those answers.
Here is the deal. This table is made by joining 2 other tables, because that was the only way to get all required data(that i must display) from one query (and that is relevant because later i will have to implement sort, which won't work otherwise).
I managed to pull out data which doesn't repeat itself with function, so this is what my solution looks by now:
1
tema1
opis1
sastanak.jpeg
2012-11-26 16:29:58
2012-11-26 17:30:00
2
tema2
opis2
sastanak.jpeg
2012-11-27 16:29:58
2012-11-29 18:30:00
3
tema3
opis3
sastanak.jpeg
2012-11-28 16:29:58
2012-11-28 17:05:00
4
tema4
opis4
sastanak.jpeg
2012-11-29 16:29:58
2013-11-29 21:42:00
and so on...
That's ok, but that is not all I need.
I'm still 2 steps away.
I need to count all id's, where current id is equal to previous. That means that solution would be:
5 (id_sastanka=1 appears 5 times in table)
5 (id_sastanka=2 appears 5 times),
6 (id_sastanka=3 appears 6 times),
6 (id_sastanka=4 appears 6 times) and so on.
I tried various combinations, but all give everything BUT correct result, so please help. I know the solution is in something simple, but I just can't seem to reach it. So this actually represents number of users who were invited to a meeting, by meeting's id.
I need to count all id's where status=1. I know how to do all of this with mysql, so that is not the question, I need the answer in php...
Solutions to this should be:
4 (four "1" in "status" where "id_sastanka"=1),
4 (four "1" in "status" where "id_sastanka"=2),
5 (five "1" in "status" where "id_sastanka"=3),
3 (three "1" in "status" where "id_sastanka"=4)....
this represents number of users who attended those meetings.
I'm a beginner, and I really need help with this, so I hope you won't bear a grudge.
I guess, that each row of your data represents as array. So, I'll write code for the following data structure:
$rows = array(
0 => array(
'id_sastanka' => 1,
'naziv' => 'tema1',
'opis' => 'opis1',
'slika' => 'sastanak.jpeg',
'posetak' => '<...>',
'zavrsetak' => '<...>',
'dnevny_red' => '<...>',
'id_korisnika' => '<...>',
'status' => '1'
),
1 => array(...),
2 => array(...),
...
);
$prev_id = null;
$prev_id_counter = array();
$ids_status_counter = array();
foreach($rows as $row) {
if ($prev_id == $row['id_sastanka']) {
$prev_id_counter[$row['id_sastanka']] = (isset($prev_id_counter[$row['id_sastanka']])) ? ++$prev_id_counter[$row['id_sastanka']] : 1;
}
$prev_id = $row['id_sastanka'];
if ($row['status'] == 1) {
$ids_status_counter[$row['id_sastanka']] = (isset($ids_status_counter[$row['id_sastanka']])) ? ++$ids_status_counetr[$row['id_sastanka']] : 1;
}
}
So, in array $prev_id_counter result for the first case and $ids_status_counter store result for the second one. Arrays have format ['id_sastanka'] => case counter
EDIT::
Maybe I should be asking what the proper way to get a result set from the database is. When you have 5 joins where there is a 1:M relationship, do you go to the database 5 different times for the data??
I asked this question about an hour ago but haven't been able to get an answer that was fitting. I went ahead and wrote some code that does exactly what I need but am looking for a better way to do it
This array gives me multiple rows of which only some are needed once and others are needed many times. I need to filter these as I have done below but want a better way of doing this if possible.
Array
(
[0] => Array
(
[cid] => one line
[model] => one line
[mfgr] => one line
[color] => one line
[orderid] => one line
[product] => many lines
[location] => many lines
)
[1] => Array
(
.. repeats for as many rows as were found
)
)
This code works perfectly but again, I think there is a more efficient way of doing this. Is there a PHP function that will allow me to clean this up a bit?
// these are the two columns that produce more than 1 result.
$product = '';
$orderid = '';
foreach($res as $key)
{
// these produce many results but I only need one.
$cid = $key['cid'];
$model = $key['model'];
$mfgr = $key['mfgr'];
$color = $key['color'];
$orderid = $key['orderid'];
// these are the two columns that produce more than 1 result.
if($key['flag'] == 'product')
{
$product .= $key['content'];
}
if($key['flag'] == 'orderid')
{
$orderid .= $key['content'];
}
}
// my variables from above in string format:
Here is the requested SQL
SELECT
cid,
model,
mfgr,
color,
orderid,
product,
flag
FROM products Inner Join bluas ON products.cid = bluas.cid
WHERE bluas.cid = 332
ORDER BY bluas.location ASC
Without seeing your database structure it's a bit hard to decipher how you actually want to manipulate your data.
Perhaps this is what you're looking for though?
SELECT p.cid, p.model, p.mfgr, p.color, p.orderid, p.product, p.flag, GROUP_CONCAT(p.content SEPARATOR ', ')
FROM products AS p
INNER JOIN bluas AS b ON p.cid = b.cid
WHERE b.cid = 332
GROUP BY p.cid, p.flag
ORDER BY b.location ASC
So now for each product cid each flag will have an entry consisting of a comma separated list instead of there being many repeating for each flag entry.
Then after you're done with the string you can quickly turn it into an array for further manipulation by doing something like:
explode(', ', $key['content']);
Again it's really hard to tell what information you're trying to pull without seeing your database structure. Your SQL query also doesn't really match up with your code, like I don't even see you grabbing content.
At any rate I'm pretty sure some combination of GROUP BY and GROUP_CONCAT (more info) is what you're looking for.
If you can share more of your database structure and go into more detail of what information exactly you're trying to pull and how you want it formatted I can probably help you with the SQL if you need.