DB Array to expected javascript format - php

Question

I am implementing Highcharts in my application. It needs data in specific format.
The data in my table is as follows
The javascript needs data in below format
When I var_dump my x_axis array and y_axis array, I get below result
Which php functions should I use to format my array elements and pass to that JavaScript in that format?
data:[
[<? echo PHP_some_function(" ' ", x_axis) ?>, <? echo (y_axis) ?>] //quotes for x, no quotes for y value
] //Moreover it should run for all the values in x_axis and y_axis
I need some logic here..
My final graph would look like

Answer 1

The problem is your query.
It should be like the following.
SELECT x_axis, y_axis FROM yourTableName;
This way you'll get exactly the format that Highcharts needs. You just have to insert it inside an array.

Answer 2

Assuming:
$x_axis = array('Safari', 'Opera', 'Firefox', 'IE', 'Chrome', 'Others');
$y_axis = array(10, 6, 40.5, 20, 10.6, 0.5);
This should work:
$data = array();
$length = count($x_axis);
for ($i = 0; $i < $length; $i++) {
$data[] = array($x_axis[i], $y_axis[i]);
}

Answer 3

[<? echo "'". json_encode($x_axis). "', " . json_encode($y_axis) ?>]
Demo: http://codepad.org/G5JAtXWu
Nix that I was confused.
What you want to do is this:
foreach($x_axis as $key=>$x) {
echo "['" . $x . "', " . $y_axis[$key] . "]";
}
Demo: http://codepad.org/SKNk1VaX
To wrap it all up:
$d = array();
foreach($x_axis as $key=>$x) {
$d[] = "['" . $x . "', " . $y_axis[$key] . "]";
}
echo json_encode($d);
Demo: http://codepad.org/KhofwXCi

Answer 4

probably array combine and than json encode and replace? just in case for diversity;)
<?php
$x_axis = array(
'Safari', 'Opera', 'fireFox'
);
$y_axis = array(
10, 30.4, 50
);
$keyFilled = array_combine($x_axis, $y_axis);
arsort($keyFilled);
$jsonData = json_encode($keyFilled);
$jsonDataReplaced = str_replace(array(',', '{', '}', ':'), array('],[', '[', ']', ','), $jsonData);
echo '<pre>';
var_dump('['.$jsonDataReplaced.']');
?>
output is:
string(45) "[["fireFox",50],["Opera",30.4],["Safari",10]]"
http://phpfiddle.org/main/code/jq4-cgb