I have this code:
$id = new matrix(array(0=>array(1,0.5,3), 1=>array(2,1,4), 2=>array(1/3,1/4,1)));
$soma = $id->times($id)->sumRows();
That outputs this:
matrix Object ( [numbers] => Array ( [0] => Array ( [0] => 12.75 [1] => 22.3333333333 [2] => 4.83333333333 ) ) [numColumns] => 3 [numRows] => 1 )
and:
$total = $id->times($id)->sumRows()->sumTotal($id);
That outputs this:
matrix Object ( [numbers] => Array ( [0] => Array ( [0] => 39.9166666667 ) ) [numColumns] => 3 [numRows] => 1 )
Now, i am trying to make:
foreach ($soma as $value){
$final = (int)$value/(int)$total;
print_r ((int)$final);
}
The output will be 000.
Must be:
12.75/39.9166666667 = 0,3269230769230769
22.3333333333 / 39.9166666667 = ...
and so on
Thanks!
Just some ideas, without really knowing much about the matrix class...
All those (int)s should probably be (float)s, as you seem to want a non-int answer.
$value is itself an object, so you'll probably need to use $value['numbers'][0][0 or 1 or 2]. Same goes for $total.
the issue is solved :
documentation:
get_data($..)
Related
I'm consuming an API which returns an array of objects as this:
$base = array(
["orange","_","banana"],
["banana","_","_"],
["_","apple","kiwi"],
["_","raspberry","strawberry"]
);
And I intend to show "0" when key value is "_" however I haven't found a better way to do this than this:
foreach ($base as $key => $value) {
for ($i=0; $i<=3;$i++) {
if ($base[$key][$i]=="_")
$base[$key][$i]="0";
}
}
This works just fine since it's a simple demo but the real array is sometimes big and I've found this solution somewhat inefficient.
My question is, there's some php built-in function to do achieve this in or at least a better way to do this?
Thanks in advance guys,
Use array_walk_recursive(), pass the elements by reference and walk over the array, checking for the value _ - if its a match, replace it with 0.
$base = array(
["orange","_","banana"],
["banana","_","_"],
["_","apple","kiwi"],
["_","raspberry","strawberry"]
);
array_walk_recursive($base, function(&$v) {
if ($v === '_')
$v = 0;
});
Output becomes
Array
(
[0] => Array
(
[0] => orange
[1] => 0
[2] => banana
)
[1] => Array
(
[0] => banana
[1] => 0
[2] => 0
)
[2] => Array
(
[0] => 0
[1] => apple
[2] => kiwi
)
[3] => Array
(
[0] => 0
[1] => raspberry
[2] => strawberry
)
)
Live demo at https://3v4l.org/6Bs8ZE
You can replace _ with 0;
json_decode(str_replace('"_"','"0"',json_encode($base)));
When I use the code below:
print_r($jsoni);
$badge_url = "http://api.steampowered.com/ISteamUserStats/GetGlobalAchievementPercentagesForApp/v0002/?gameid=841370%3Fkey&steamids=76561198108211948&fbclid=IwAR0B4wUlosbqFElHBJw-AkLwb3mGsv42xKdtrEAarDmD97Ur3AprrkW4tCk";
$jsoni = json_decode(file_get_contents($badge_url), true);
I get the following as a result:
Array
(
[achievementpercentages] => Array
(
[achievements] => Array
(
[0] => Array
(
[name] => GAME_GREEN_LIGHT
[percent] => 70.9000015259
)
[1] => Array
(
[name] => CAREER_EARN_BADGE
[percent] => 62.2999992371
)
How can I get it so that it only shows the name and the percentage?
print_r($jsoni['achievementpercentages']['achievements'])
You could loop through the decoded data to create an associative array with the achievement names as keys and the percentages as values:
$achievements = [];
foreach($jsoni['achievementpercentages']['achievements'] as $achievement)
$achievements[$achievement['name']] = $achievement['percent'];
Which outputs:
Array
(
[GAME_GREEN_LIGHT] => 70.9000015259,
[CAREER_EARN_BADGE] => 62.2999992371
)
So im now using the following code.
<?php
$achievements = [];
foreach($jsoni['achievementpercentages']['achievements'] as $achievement)
$achievements[$achievement['name']] = $achievement['percent'];
print_r($achievements);
?>
wich results in
Array ( [GAME_GREEN_LIGHT] => 70.9000015259 [CAREER_EARN_BADGE] => 62.2999992371
how do i get it to show a list from top to bottom instead of in a cluster of text?
Thanks for the help!
I need to pass multiple array's in an indexed format to a cartesain function in order to calculate every permutation. This works when the code is:
$count = cartesian(
Array("GH20"),
Array(1,3),
Array(6,7,8),
Array(9,10)
);
I will not always know the length, number of arrays, or values so they are stored in another array "$total" which may look something like this:
Array (
[0] => Array
(
[0] => 1
[1] => 3
)
[1] => Array
(
[0] => 6
[1] => 7
[2] => 8
)
[2] => Array
(
[0] => 9
[1] => 10
)
)
I have tried implementing the user_call_back_function as per:
$count = call_user_func('cartesian', array($total));
However the array that then gets passed looks like this:
Array (
[0] => Array (
[0] => Array (
[0] => Array (
[0] => 1
[1] => 3
[2] => 4
)
[1] => Array (
[0] => 5
[1] => 6
[2] => 7
[3] => 8
)
[2] => Array (
[0] => 9
[1] => 10
)
)
)
)
Where am I going wrong, why is the array being buried further down in dimensions where it is not needed, and is this the reason why my cartesain function does no longer work?
Thanks, Nick
As requested, here is my cartesain function:
function cartesian() {
$_ = func_get_args();
if(count($_) == 0)
return array(array());
$a = array_shift($_);
$c = call_user_func_array(__FUNCTION__, $_);
$r = array();
foreach($a as $v)
foreach($c as $p)
$r[] = array_merge(array($v), $p);
return $r;
}
why is the array being buried further down in dimensions where it is not needed?
Simply because you are wrapping an array in another array when calling call_user_func.
$count = call_user_func('cartesian', array($total));
Perhaps you meant this:
$count = call_user_func('cartesian', $total);
is this the reason why my cartesain function does no longer work?
I don't know, you have not posted your cartesain, just an arrat called cartesain
EDIT as op updated the question.
If you are using PHP 5.6 you should be able to use the splat operator.
call_user_func("cartesain", ...$total);
Disclaimer, I have not tested this.
Arrays and Traversable objects can be unpacked into argument lists when calling functions by using the ... operator.
How can i make the values of such an array unique.
Array ( [0] => Array ( [0] => wallet [1] => pen [2] => perfume [3] => pen) )
as there is pen twice i would like it to be deleted in this way :
( [0] => Array ( [0] => wallet [1] => pen [2] => perfume) )
OR
( [0] => Array ( [0] => wallet [1] => perfume [2] => pen) )
and i would like it to apply for any length.
thanks for your help
How about array_flip used twice:
$arr = Array(0 => wallet, 1 => pen, 2 => perfume, 3 => pen);
$arr = array_flip(array_flip($arr));
print_r($arr);
output:
Array
(
[0] => wallet
[3] => pen
[2] => perfume
)
If you want to renumbered the indexes, add this ligne after:
$arr = array_values($arr);
if you just want to select a unique value you need to pass the array that you want to compare the values, I am assuming you passed the main array, you need to pass the array where the problem is found which is in your case the index 0 of an array
$result = array_unique($input[0]);
$input will have an array of unique values so pen will not be 2
if you need to delete any duplicated values in the array you can do this.
$input[0] = array_unique($input[0]);
if you need to reset the index you can use this
$new_index = array_values($input[0]);
print_r($new_index);
$tmp = array ();
foreach ($array as $row)
array_push($tmp,array_unique($row));
Here is the solution for multi dimensopnal array
$res = array();
foreach($your_array as $key=>$val){
$res[$key] = array_unique($val);
}
echo "<pre>";
print_r($res);
I have an array which looks like this:
Array
(
[0] => Array
(
[1] => Array
(
[name] => vrij
// ...
)
[2] => Array
(
[name] => zat
// ...
)
)
)
I build this array using a for loop; however, I need to push 4 more 'records' to the array, which I can't do in this for loop.
I want the array to look like this, after the pushes:
Array
(
[0] => Array
(
[1] => Array
(
[name] => vrij
// ...
)
[2] => Array
(
[name] => zat
// ...
)
// ...
)
[1] => Array
(
[1] => Array
(
[name] => zon
//...
)
[2] // etc
)
)
The four new records should be pushed to array[1], so I get something like
$array[1][0], $array[1][1], etc. 0 1 2 3 contains the new data.
I tried quite a lot of stuff, to be honest. I need to do four of these pushes, so I was trying a for loop:
for($i = 0; $i < 4; $i++)
{
$day_info = $this->get_day_info($i, $data['init']['next_month'], $data['init']['current_year']);
$push['name'] = $day_info['day_name'];
array_push($data['dates'], $push);
}
and all other kinds of things with [], [1][$i], etc. Sometimes it even adds five arrays! I'm confused as to why it won't just add the [1][1], [1][2],.. I'm probably missing out on something here. Thanks a lot.
If this isn't clear, please do tell and I'll add more code to explain the problem better.
$extradates = array(1 => 'zon', 2 => 'maa');
$data['dates'][] = $extradates;
Will add 2 extra dates to the array using a new index.
Although if I see what you trying to accomplish, I think there might be a better way.
This above works though :)