creating outer array php - php

UPDATE: a solution has been found stated below: however new issue poses i didnt want to keep creating question so updated this one when i use ajax to pass through to html i get the following error response.forEach is not a function
where the code is as below is this because there are now 2 arrays?
$.get('php/test.php', function(response) {
console.log(response);
var row;
response.forEach(function(item, index) {
console.log(item);
$(`td.${item.beacon}`).css('background-color', item.location).toggleClass('coloured');
});
});
Im Pretty naff when it comes to this type of thing but i need to try get these 2 queries added to 1 ajax I have been told i should add both queries to an outer array but im not sure how to do this and the example i got was $array = $other_array
but im not sure how to write it any help would be greatly appreaciated
$sql = "SELECT beacon,TIME_FORMAT(TIMEDIFF(max(`time`),min(`time`)), '%i.%s')
AS `delivery_avg`
FROM `test`.`test`
where date = CURDATE()
and time > now() - INTERVAL 30 MINUTE
group by beacon ";
$result = $conn->query($sql);
$sql2 = 'SELECT
*
FROM
(SELECT
beacon,location,date,
COUNT(location) AS counter
FROM `test`.`test`
WHERE `date` = CURDATE() and `time` > NOW() - interval 40 second
GROUP BY beacon) AS SubQueryTable
ORDER BY SubQueryTable.counter DESC;';
$result = $conn->query($sql2);
$result = mysqli_query($conn , $sql);
$rows = array();
while($r = mysqli_fetch_assoc($result)) {
$rows[] = $r;
}
echo json_encode($rows);
$result2 = mysqli_query($conn , $sql2);
$rows2 = array();
while($r = mysqli_fetch_assoc($result2)) {
$rows2[] = $r;
}
echo json_encode($rows2);

You already got most of it right. To get the data in one go, you can combine the arrays (see the line staring with $result) and then send it JSON formatted.
$sql1 = "SELECT ...";
// Query the database
$result1 = $conn->query($sql);
// Fetch the result
$rows1 = $result1->fetch_all(MYSQLI_ASSOC);
// Same for second query
$sql2 = 'SELECT ...';
$result2 = $conn->query($sql2);
$rows2 = $result2->fetch_all(MYSQLI_ASSOC);
$result = array(
'query1' => $rows1,
'query2' => $rows2
);
header("Content-Type: application/json");
echo json_encode($result);
Some more hints:
You only need to run the query once (you have ->query() and mysqli_query() in your code).
You don't need the loop to get all result rows. The function mysqli_fetch_all() does that for you.

When you have your 2 arrays with db results, you can do something like this :
$return = array (
$result,
$result2
);
echo json_encode($return);

$sendResponse = array (
'sql1' => $sqlResult1,
'sql2' => $sqlResult2
);
echo json_encode($sendResponse);

This would be a more suitable and convenient (from JavaScript size) way
$response = [];
$response['result_first_query'] = $rows;
$response['result_second_query'] = $rows2;
echo json_encode($response);

Related

Get All Rows When Variable Empty PHP Mysql

$frame_type = '';
$ret = mysqli_query($con, "select * from products where status='1' AND frame_type = '$frame_type' ");
while ($row = mysqli_fetch_array($ret)) {
$emparray[] = $row;
}
Get All Rows If The $frame_type Is Empty I am trying this way but i get zero rows , How to fix that Where $frame_type has value then send to query else not
There are a some of things that is wrong with your question (code). But if you only want answer. Just copy this
$frame_type = '';
$query = "select * from products where status='1' ";
// strlen has value
if(strlen($frame_type)) {
$query .= "AND frame_type = '$frame_type'";
}
$ret = mysqli_query($con, $query);
while ($row = mysqli_fetch_array($ret)) {
$emparray[] = $row;
}
PS: It's never a safe idea to pass everything to the query. Use prepared statement if you can.

How to combine multiple query's into one?

I am running a line graph on RGraph framework, and I am using a SELECT COUNT statement for rejected, accepted, approved etc.....counting how many items was rejected or accepted etc and then dumping the query data into an array, However I am looking for an easier way to implement this query, instead of running a query on each unique row value, also thinking in the way if I have to encounter other column data besides rejected, accepted or etc....I wouldnt, my code doesnt seem very scalable then. Please help
So far, I am running a query for each keyword, hope my code explains this.
The final variable is what i am feeding to RGRAPH, This works fine as it is, however it isn't the right way, and not very scalable, should my row data change.
<?php
$cxn = mysqli_connect("localhost","root","", "csvimport");
$query = "SELECT COUNT(*) FROM table_1 WHERE conclusion = 'rejected'";
$result = mysqli_query($cxn, $query) or die(mysqli_error($cxn));
$display = mysqli_fetch_array($result);
$rejected = $display[0];
//echo $rejected;
$query = "SELECT COUNT(*) FROM table_1 WHERE conclusion =
'accepted'";
$result = mysqli_query($cxn, $query) or die(mysqli_error($cxn));
$display = mysqli_fetch_array($result);
$accepted = $display[0];
//echo $accepted;
$query = "SELECT COUNT(*) FROM table_1 WHERE conclusion = '-'";
$result = mysqli_query($cxn, $query) or die(mysqli_error($cxn));
$display = mysqli_fetch_array($result);
$dash = $display[0];
//echo $dash;
$query = "SELECT COUNT(*) FROM table_1 WHERE conclusion =
'approved'";
$result = mysqli_query($cxn, $query) or die(mysqli_error($cxn));
$display = mysqli_fetch_array($result);
$approved = $display[0];
//echo $approved;
$datarray = [$rejected, $accepted, $dash, $approved];
print_r($datarray);
$data_string = "[" . join(", ", $datarray) . "]";
echo "<br>";
print_r($data_string);
?>
You can just use GROUP BY and add the conclusion column to the result set, so
SELECT conclusion, COUNT(*) as total
FROM table_1
WHERE conclusion in ('rejected', 'accepted', '-', 'approved')
GROUP BY conclusion
Then retrieve each row of the result set
$totals = [];
while($row = mysqli_fetch_array($result)) {
$totals [$row[0]] = [$row[1]];
}
and $totals will be an array something like
array( 'accepted' => 12,
'approved' => 20...)
If you want all of the conclusions, then just remove the WHERE conclusion in line and it will return all of the possibilities along with the count.

Is there a way to sort PHP array_merge based on raw[2]?

I am creating a time attendance PHP script. I started from storing data in the database MySQL and use different tables for the Punch-in/Punch-out, Breaks, Lunch/Dinner breaks.
Each one of the casualties mentioned before have a table which is structured with an:
ID, start, end, flag
I have already tried to do this with the following code of foreach but unsuccessfully!
foreach ($total as $key => $row) {
$start[$key] = $row['start'];
}
$final = array_multisort($start, SORT_DESC, $total);
echo $final;
Here is the code that I have made with 2 SELECT MySQL queries
$result = mysqli_query($db, "SELECT * FROM time WHERE username =
'$user_check' ORDER BY start DESC");
$data = array();
while ($row = mysqli_fetch_assoc($result)) {
$data[] = $row;
} $db->next_result();
$result = mysqli_query($db, "SELECT * FROM break WHERE username =
'$user_check' ORDER BY start DESC");
$data2 = array();
while ($row = mysqli_fetch_assoc($result)) {
$data2[] = $row;
}
$total = array_merge ($data, $data2);
I would like to have 1 array of this 2 queries sorted DESC by start as I will use this array to populate a table in DESC order.
Use UNION ALL in your query, instead of merge arrays. Let the database do the work for you:
SELECT * FROM
(SELECT * FROM time WHERE username = '$user_check'
UNION ALL
SELECT * FROM break WHERE username = '$user_check'
) ORDER BY start DESC
PS: Your code is vulnerable to SQL Injection. You should use prepared statement instead.

How to merge an array inside another array in php?

Im trying to merge or put an Array (called '$rows_ban') inside a sub item of another array (called '$rows') in a final array named '$rows_final'.
Im using array_merge but returns null inside 'data':
{"date":"2018-05-03","hour":"09:12:32","data":[null]}
It should return the results in of the second query inside the 'data':
{"date":"2018-05-03","hour":"09:12:32","data":[{...},{...},{...}]}
PHP Script:
$rows = array();
$rows_ban = array();
$rows_final= array();
$result1 = mysqli_query($link,"SELECT `id`,`sync_date`,`sync_time` FROM sync_log");
while($r = mysqli_fetch_array($result1)) {
$rows['date']= $r[2];
$rows['hour']= $r[3];
$rows['data'][]= null;
}
$result2 = mysqli_query($link,"SELECT cod, name, total from totals " );
while($r = mysqli_fetch_array($result2)) {
$rows_ban['cod'] = $r[0];
$rows_ban['name'] = $r[1];
$rows_ban['total'] = $r[2];
$result3 = mysqli_query($link,"SELECT *, 1 as Filter from
table3 where cod=".$r[0]." order by dates desc");
while($r = mysqli_fetch_assoc($result3)) {
$rows_ban['sub_data'][] = $r;
}
$rows_final = array_merge($rows['data'],$rows_ban);
// here im trying to merge the $rows_ban array inside the
$rows['data']
}
echo json_encode($rows_final);
Not sure if that's what you wanted to accomplish since your description is very poor and hard to understand.
$output = [];
$tmpRows = [];
$result = mysqli_query($link, 'SELECT `id`,`sync_date`,`sync_time` FROM sync_log');
if ($tmp = mysqli_fetch_array($result, MYSQLI_ASSOC)) {
$output['date'] = $tmp[0]['sync_date'];
$output['time'] = $tmp[0]['sync_time'];
}
$result = mysqli_query($link, 'SELECT cod, name, total from totals ');
if ($tmp = mysqli_fetch_array($result, MYSQLI_ASSOC)) {
$tmpRows['cod'] = $tmp[0]['cod'];
$tmpRows['name'] = $tmp[0]['name'];
$tmpRows['total'] = $tmp[0]['total'];
$result = mysqli_query($link,"SELECT *, 1 as Filter from
table3 where cod={$tmp[0]['cod']} order by dates desc");
if ($tmp = mysqli_fetch_array($result, MYSQLI_ASSOC)) {
$tmpRows['sub_data'] = $tmp[0];
}
$output['data'] = $tmpRows;
}
print_r(json_encode($output));
Also array_merge doesn't work like you think it does. It returns merged array like it's name states. Regarding to your code, final result would be exactly $rows_ban encoded to json.
http://php.net/manual/en/function.array-merge.php

Outputting SQL query as line by line JSON

My SQL query is selecting date and doing a count, as well as grouping by date.
I don't know how to output line by line JSON output.
$sql = "SELECT DATE(timestamp), COUNT(eventid)
FROM `tablex`
WHERE timestamp >= date_sub(CURRENT_DATE, interval 30 day)
GROUP BY DATE(timestamp) ";
$stream = mysqli_query($conn, $sql);
if (mysqli_num_rows($stream) > 0) {
while($row = mysqli_fetch_assoc($stream)) {
// Is this where I should echo JSON?
// The problem is I'm not retrieving records but count and doing
// a grouping
}}
Use mysqli_fetch_array(), also take the count with mysql_num_rows():
$sql = "SELECT DATE(timestamp), COUNT(eventid)
FROM `tablex`
WHERE timestamp >= date_sub(CURRENT_DATE, interval 30 day)
GROUP BY DATE(timestamp) ";
$stream = mysqli_query($conn, $sql);
if (mysqli_num_rows($stream) > 0) {
$rowCount = mysql_num_rows($result);
while($row = mysqli_fetch_array($result, MYSQLI_NUM)){
// Process JSON here use $row[0], $row[1], and so
}
}
Whatever you like to return as a JSON-string, you should always write your data into a single array, then use this nice little PHP-function called json_encode(). For example:
$sql = "SELECT
DATE(timestamp) as date_timestamp,
COUNT(eventid) as count_eventid
FROM `tablex`
WHERE timestamp >= date_sub(CURRENT_DATE, interval 30 day)
GROUP BY DATE(timestamp);";
$stream = mysqli_query($conn, $sql);
// prepare return array
$mydata = array(
'eventcount' => 0
);
if (mysqli_num_rows($stream) > 0) {
while($row = mysqli_fetch_assoc($stream)) {
// just collect your data here, do not JSONify here
$mydata['eventcount'] += $row['count_eventid'];
}
}
// We got all our data, so return JSON encoded array
echo json_encode($mydata);
You will get something like
{"eventcount":"1234"}
I managed to get an output:
$stream = mysqli_query($conn, $sql);
$lines = array();
while($line = mysqli_fetch_assoc($stream)) {
$llines[] = $line;
}
print json_encode($lines);

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