I'm working on a Bubble Chart using Highcharts. Here's a sample of my data:
name | price | quantity | count
--------+-------+----------+-------
Female | 2 | 3 | 5
Female | 3 | 12 | 10
Female | 5 | 6 | 15
Female | 1 | 7 | 25
Male | 3 | 5 | 7
Male | 2 | 9 | 11
Male | 5 | 7 | 23
Male | 4 | 4 | 14
I'm using PHP to query the data and encode to JSON:
$query = "SELECT name, price, quantity, count FROM sales WHERE id = $1";
$result = pg_prepare($db, "report", $query);
$result = pg_execute($db, "report", array($ID));
while ($row = pg_fetch_array($result, NULL, PGSQL_ASSOC))
{
$response['xdata'][$row['name']]['x'][] = $row['price'];
$response['xdata'][$row['name']]['y'][] = $row['quantity'];
$response['xdata'][$row['name']]['radius'][] = $row['count'];
}
echo json_encode($response);
However, the desired JSON format is as follows in order to properly plot the graph:
series: [{
name: 'Female',
marker:{
symbol:'circle',
fillColor:'rgba(24,90,169,.5)',
lineColor:'rgba(24,90,169,.75)',
lineWidth:1,
color:'rgba(24,90,169,1)',
states:{
hover:{
enabled:false
}
}
},
data: [{x:2,y:3,marker:{radius:5}},
{x:3,y:12,marker:{radius:10}},
{x:5,y:6,marker:{radius:15}},
{x:1,y:7,marker:{radius:25}}]
},{
name: 'Male',
marker:{
symbol:'circle',
fillColor:'rgba(238,46,47,.5)',
lineColor:'rgba(238,46,47,.75)',
lineWidth:1,
color:'rgba(238,46,47,1)',
states:{
hover:{
enabled:false
}
}
},
data: [{x:3,y:5,marker:{radius:7}},
{x:2,y:9,marker:{radius:11}},
{x:5,y:7,marker:{radius:23}},
{x:4,y:4,marker:{radius:14}}]
}]
My question is, how can I correctly process $query in PHP to get the desired JSON format as above and pass it to series through something like optionsBubble.series = data.xdata? Thanks a lot!
You'd first have to build the non-db-related parts into your PHP structure, e.g.
$data = array(
0 => array(
'name' => 'Female',
'marker' => array (
'symbol': 'circle'
etc....),
'data' => array() // database insertion occurs here
),
1 => array(
'name' => 'Male',
etc...
)
);
$locations = array('Female' => 0, 'Male' => 1, etc...) // reverse map your 'name' fields
while(...) {
$data[$locations[$row['name']]][data]['x'][] = $row['price'];
$data[$locations[$row['name']]][data]['y'][] = $row['quantity'];
^^^^^^^^^^^^^^^^^^^^^^^^--- reverse lookup to get right array index for 'name'
}
First I'm going to recommend you take a look at your SQL query, especially the part of WHERE id=$1. If I'm not mistaken (and on this I'm fairly sure.) your query is going to return one (1) row not many like what you probably want. I would recommend removing the WHERE clause and see if that solves your problem.
If not drop me a line and I'll see what else I see and we can go from there.
Related
At the moment I have a database structure like so:
| id | name | parent_id
| 1 | Human Resources | 0
| 2 | Marketing | 0
| 3 | Operations | 0
| 4 | Design | 0
| 5 | Marketing Design| 4
| 6 | Graphic Design | 4
| 7 | Print Design | 4
| 8 | Human Personal | 1
| 9 | Food Ops | 3
As you can see these are the departments within the business and also sub departments.
A sub-departments parent_id is the id of the department
do, for example:
id: 4, name: Design, parent_id: 0
id: 7, Print Design, parent_id: 4
Print Design is a sub department of design
I have called everything from the database in one query and now I need them in this structure:
$depts = array(
"Human Resources" => array("Human Personal"),
"Marketing" => array(),
"Operations" => array("Food Ops"),
"Design" => array("Marketing Design", "Graphic Design", "Print Design"),
...
);
so far I have:
foreach ($results as $result) {
if ($result['parent_id'] == 0) {
$parentCategories_arr[array($result['id'] => $result['name'])];
} else {
$returnedResults_arr[$result['parent_id']] = array($result['name']);
}
}
However I completely think that I have missed the point. so my question:
How do I loop through all the contents of that results and add the parent categories into an array with their sub categories as an array?
Maybe there is an easier way, but it works : (hate to say that sentence) - try to make it better maybe
$mFinalArray = fixMyArray($results);
print_r($mFinalArray);
function fixMyArray($results){
// Create categories - parent_id == 0
foreach($results as $index => $result) // $index = 0|1|2|3|4|5|6|7|8|9
if($result['parent_id'] == 0) // $result['parent_id'] = current item parent_id
$mCategories[$result['name']] = $result['id']; // $mCategories['Human Resources'] = 1|2|3|4
// Insert each data to the right parent
foreach($results as $index => $result) // $index = 0|1|2|3|4|5|6|7|8
if($result['parent_id'] != 0)
foreach($mCategories as $subindex => $category) // $subindex = Human Resources | Marketing | Operations | Design
if($result['parent_id'] == $category) // $category = 0|1|2|3|4
$mFinalArray[$subindex][] = $result['name']; // ex. $mFinalArray['Human Resources'][] = Human Personal
return $mFinalArray;
}
*Last line has an extra [ ] $mFinalArray[$subindex][ ]= $result['name'] . That means append to array.
Output :
Array
(
[Design] => Array
(
[0] => Marketing Design
[1] => Graphic Design
[2] => Print Design
)
[Human Resources] => Array
(
[0] => Human Personal
)
[Operations] => Array
(
[0] => Food Ops
)
)
I am sorry for my lazy title. I hope that a moderator could improve it so the database won't get infected.
I got the following code (forum.php);
<?php
$res = $db->query('
SELECT *
FROM forums_categories
ORDER BY category_id
');
while ($row = $db->fetch_array($res)) {
$categories = array(
'ID' => $row['category_id'],
'NAME' => $row['category_name']
);
echo '<pre>';
print_r($categories);
echo '</pre>';
}
And I got the following database structure;
|---------------|-------------------|
| category_id | category_name |
|---------------|-------------------|
| 1 | Example 1 |
| 2 | Example 2 |
| 3 | Example 3 |
| 4 | Example 4 |
| 5 | Example 5 |
| 6 | Example 6 |
|---------------|-------------------|
But my array only returns 1 value:
Array
(
[ID] => 1
[NAME] => Example 1
)
Oh and if somebody likes to know how my $db->fetch_array looks like:
<?php
function fetch_array($result)
{
return mysql_fetch_assoc($result);
}
How can I return all rows in my array? Thank you for reading and thank you for replying!
You're overwriting the previous value of $categories on each iteration
$categories[] = array(
'ID' => $row['category_id'],
'NAME' => $row['category_name']
);
You might also want to initialize an empty array
$categories = array();
before your loop to avoid warnings.
I have two mysql database table, one is for posts and other is for comments.
Post table
+----+-------+
| ID | texts |
+----+-------+
| 1 | abc |
| 2 | xyz |
+----+-------+
And comments table
+----+--------+-------+
| ID | postid | texts |
+----+--------+-------+
| 1 | 1 | abc1 |
| 2 | 1 | abc2 |
| 3 | 1 | abc3 |
| 4 | 2 | xyz1 |
| 5 | 2 | xyz2 |
+----+--------+-------+
Now, How to get posts with bare minimum mysql query requests, so that output is like,
$data = array(
0 => array(
ID => 1,
texts => abc,
comments => array(
0 => array(
ID => 1,
texts => abc1
)
1 => array(
ID => 2,
texts => abc2
)
2 => array(
ID => 3,
texts => abc3
)
)
)
1 => array(
ID => 2,
texts => xyz,
comments => array(
0 => array(
ID => 4,
texts => xyz1
)
1 => array(
ID => 5,
texts => xyz2
)
)
)
)
How about
SELECT *
FROM Post p LEFT JOIN
Comments c ON p.ID = c.postID
It will be helpful if you can provide code to put results in array
Let me first recommend a better multidimensional array that will be easier to work with.
Array Format:
$data = array(
post.ID => array(
"texts" => post.texts,
"comments" => array(
comments.ID => comments.texts,
),
),
);
The above format will be easier to work with especially for direct access into the array and also for the foreach loop.
Now for assigning the data from the MySQL result into the array using mysqli_* functions and a while loop do the following:
//connect to mysql database
$link = $mysqli_connect("localhost","your_user","your_password","your_database");
//form mysql query
$query = "
SELECT
post.ID AS post_id,
post.texts AS post_texts,
comments.ID AS comments_id,
comments.texts AS comments_texts
FROM
post
LEFT JOIN comments ON (comments.postid = post.ID)
WHERE
posts.ID < 10
";
//run mysql query and return results
$mysqli_result = mysqli_query($link,$query);
//define empty $data array
$data = array();
//loop through result sets fetching string array with each result row
while($row = mysqli_fetch_array($mysqli_result)){
//set the post text if not already set
if(!isset($data[$row["post_id"]]["texts"])){
$data[$row["post_id"]]["texts"] = $row["post_texts"];
}
//set the comments data if not NULL otherwise set comments to empty array to maintain structure
if(!empty($row["comments_id"])){
$data[$row["post_id"]]["comments"][$row["comments_id"]] = $row["comments_texts"];
} else {
$data[$row["post_id"]]["comments"] = array();
}
}
//free the results set
mysqli_free_result($mysqli_result);
//close connection to mysql database
mysqli_close($link);
//print out the post text with the id of 1 with two line breaks
//be careful using this method unless you are sure that post with id of 1 exists or first check if(isset($data["1"])){...}
print $data["1"]["texts"]."<br /><br />";
//loop through all of the comments for a particular post with id of 1
foreach($data["1"]["comments"] as $key => $value){
//print out the comment id with a line break
print "Comment ID: ".$key."<br />";
//print out the comments texts with two line breaks
print "Comment: ".$value."<br /><br />";
}
//loop through and print all the post texts and how many comments exist for the post
foreach($data as $key => $value){
//print the post ID with a line break
print "Post ID: ".$key."<br />";
//print the post texts with a line break
print "Post: ".$value["texts"]."<br />";
//count the number of comments
$num_comments = count($value["comments"]);
//get correct plural form of noun
($num_comments==1) ? $comments = "comment" : $comments = "comments";
//print the number of comments for the post with two line breaks
print $num_comments." ".$comments." for this post.<br /><br />";
}
With help from others on here, I've got a nested loop on the go that pull a list of months from one sql table and then, for each of those months, it goes through an events table and pulls the respective events.
Table structures are along the lines of:
MonthTable
ID | MonthShort | MonthLong
1 | 2012Oct | October 2012
2 | 2012Sep | September 2012
EventTable
ID | MonthID | Event | Guests | Adults | Children
1 | 1 | Wedding | 200 | 150 | 50
2 | 1 | Bar Mitzvah | 100 | 50 | 50
3 | 1 | Funeral | 100 | 50 | 50
4 | 2 | Birthday | 50 | 30 | 20
5 | 2 | Birthday | 300 | 200 | 100
6 | 2 | Wedding | 200 | 180 | 20
My loop works so that it populates menu A with all available months, then populates menu B with all of the events for that month. You can then click on the event and it displays the relevant information - this is where I'm a bit stuck.
The arrays I've got are similar to the following, the guests array is what I'm trying out atm:
$events = array();
$months = array();
$guests = array();
while ($row = mysql_fetch_array($result)) {
$months[$row["MonthID"]] = $row["MonthLong"];
$events[$row["MonthID"]][] = $row["Event"];
$guests[$row["MonthID"]][] = $row["Guests"];
}
I use a foreach to populate menu B with ($events[$x] as $event). The screen for each event will have an entry similar to the following and this is what I'd like to do (obviously I know this won't work bu it should serve for illustrative purposes):
echo ' Number of guests: ' . print_r($guests[$x])
With guests and events both on the same counter I though it would allow me to print the array entry in the relevant position.
So what I'd like it if you click on "October 2012" and then select "Funeral", the screen would say:
Number of guests: 100
There are actually several dozen records per event but no point going into all of them...
Apologies for the rambling and if this makes no sense! I'm new to PHP and am only really stuck on this bit.
SQL query is built on the following:
$sql = "
SELECT
a.id, b.id AS monthId, a.event, b.monthshort, b.monthlong
FROM
events_table_name AS a
INNER JOIN
month_table_name AS b ON b.id = a.monthId
ORDER BY
b.id, a.id ASC
";
You need make use of the index in the foreach statement. I mean
foreach ($events[$x] as $i => $event) {
...
echo ' Number of guests: ' . print_r($guests[$x][$i]);
}
I would go for a different data structure in PHP. How about this? You might have to change your SQL query to get it, but this is the data structure I'd aim for:
$months = array(
'1' => array(
'long' => 'October 2012',
'events' => array(
'1' => array(
'name' => 'Wedding',
'guests' => '200'
),
'2' => array(
'name' => 'Bar Mitzvah',
'guests' => '100'
),
'3' => array(
'name' => 'Funeral',
'guests' => '100'
)
)
),
'2' => array(
// etc.
)
);
This way, you're able to look up a month; for each month, its events; for each event, its attendance and name.
I have a table "exercise_results". People put in their results at the beginning and then two months later put in their results to see how much they improved. Their beginning set has the exercise_type_id of "1" and the end set has the exercise_type_id of "2".
I need a way to display this out into a HTML table that looks like this:
a foreach loop, but that's with single rows. I'm having trouble combining two rows into one. I think this may be as simple as some kind of MySQL join? We identify each person by their person_unique_id.
Here are my fields:
id | person_unique_id | person_name | exercise_type_id | mile_running_time | bench_press_weight_lbs | squat_weight_lbs | date_of_exercise_performed
Sample rows:
1 | J123 | John Smith | 1 | 8 | 200 | 300 | 2010-03-20
2 | J123 | John Smith | 2 | 7 | 250 | 400 | 2010-05-20
3 | X584 | Jane Doe | 1 | 10 | 100 | 200 | 2010-03-20
4 | X584 | Jane Doe | 2 | 8 | 150 | 220 | 2010-05-20
I've tried a few solutions but I'm lost. Any help would be great. Thanks!
EDIT:
In response to the comment below, I would hope for some data like:
array 0 =>
array
'Exercise' =>
array
'person_unique_id' => string 'J123'
'person_name' => string 'John Smith'
'begin_mile_running_time' => string '8'
'end_mile_running_time' => string '7'
1 =>
array
'Exercise' =>
array
'person_unique_id' => string 'X584'
'person_name' => string 'Jane Doe'
'begin_mile_running_time' => string '10'
'end_mile_running_time' => string '8'
You can use GROUP_CONCAT() to get a two rows result like this:
SELECT person_unique_id, person_name,
group_concat( mile_running_time ) AS miles,
group_concat( bench_press_weight_lbs ) AS bench,
GROUP_CONCAT( squat_weight_lbs ) AS squat
FROM exercise_result
GROUP BY person_unique_id
Your result will be like:
J123 | John Smith | 8,7 | 200,250 | 300,400
X584 | Jane Doe | 10,8 | 100,150 | 200,220
And then you can use php explode with the result fields to get the results for each type.
Extract the whole table, or whichever rows are interesting to you, sort on person id, compare person id of each row with the next to see if there is a result to print for all columns in your HTML table. If not, jump to the next and leave the fields blank(or some other solution, maybe ignore persons who have not filled in both fields?).
My PHP skills are limited, so no code example.
$query = mysql_query("select ...your data");
while ($row = mysql_fetch_assoc ($query) ) {
if ($row['exercise_type_id']==1)
$exe1[]=$row;
else
$exe2[]=$row;
}
print_r($exe1);
print_r($exe2);
from what I've understood
edit:
try this
$query = mysql_query("select ...your data");
while ($row = mysql_fetch_assoc ($query) ) {
$rows[]=array('Exercise'=>$row);
}
print_r($rows);
If you are ordering on person_unique_id then exercise_type_id, you can do this. If you have two rows for everyone, you can leave out the if (only use the else):
for( $i = 0; $i < count($exercise_results); $i++ )
{
$first = $exercise_results[$i];
if( !isset($exercise_results[$i+1])
|| $first['person_unique_id'] != $exercise_results[$i+1]['person_unique_id' ) {
$second = array(
'person_name'=>$other['person_name'],
'mile_running_time' => null // fill in the rest with defaults (like null)
);
} else {
$second = $exercise_results[$i+1];
$i++; // skip ahead one, since you've already used the second result.
}
// perform your normal printing, but use $beginning and $end to get the respective results
}