I'm trying to get every output out of a json file. So far I have:
$json_feed = file_get_contents($indy_feed_url);
$json_items = json_decode($json_feed, TRUE);
$individual = $json_items['indy'][0];
and then echo things out.
This works fine for item 0. However, I want to do all items.
The number of items in the json file varies from time to time so I cannot just enter like 10 here because sometimes there might be 20 or 5 etc.
How can I do this in a loop so that it counts the number of items and loops that many times?
Use the foreach statement:
foreach($json_items['indy'] as $item) {
// do whatever you want with $item
}
Related
I want to write a foreach that loops on a wanted certain step so for example if a user send me 2 rooms it just loops twice if the user sends 5 room it loops 5 times and here is what I tried:
$room_count = [1,2,3] //room ids for example
foreach($room_count as $room_counts){
echo 'echo on eachstep'
}
I want to get the requests from $request->all() so I am not sure about saving that in array is a right thing to use for example here or not so I just need to do it in an array for now.
Try this:
for ($i = 0; $i < count($room_count); $i++) {
//your loop body here
}
if you want to loop for certain amount of rooms.
You can't
get the requests from $request->all()
, $request->all() contains only Request parameters like user's input.
I have two arrays. One array $People currently creates number of 44 individuals. Lets just assume currently its
$People = array('1','2',...,'44');.
I have another array of 15 elements.
$Test = array('A','B',...'O');
Now I want to be able to assign the test randomly to each individual. I know how to do this using random function in php.
Where it has got tricky for me and what I need help with is how can I even out the test array. What I mean by this is since there are currently 44 individuals (this array will grow in future), what I want is 14 test versions to have 3 individuals and 1 version would have 2. So I want the test array to even out. I also want it to handle as growth of $People array.
Ex: Test Version D will have individual '4', '25'. Every other version has three random individuals.
Few ideas I came up with are things like running random integer on $Test array and which ever gets highest/lowest gets 2 individuals and rest three. This would give a problem when I increase the size of $People array; to deal with that I though about using modulus to figure out what will be even number of $Test beforehand.
I can do this and other ideas but am pretty sure there has to be a better way to do this.
Clarifying your situation:
You want to distribute the values inside $People randomly amongst your $Test array. The problem you stated you are having is that the amount of values in $People isn't always perfectly dividable by the amount of values in $Test, and you aren't sure how to go about implementing code to distribute the values evenly.
Proposed solution:
You could obtain the values in a foreach loop randomly 1 by 1 from a shuffled version of $People and put them in a new array called $Result. You would also have a conditional checking if you have extracted all the values from the shuffled $People array: if($count>=$arrayCount) where $arrayCount=$count($shuffledPeople);. If you have obtained all the values, you first make the $bool value false (in order not to iterate through the while loop anymore, and then you break; out of the foreach loop.
$Result =[];//the array containing the results
$shuffledPeople = $People;
shuffle($shuffledPeople);//mixing up the array
$arrayCount = count($shuffledPeople);//finding the total amount of people
$count = 0;
$bool = TRUE;
while ($bool)
{
foreach($Test as $value)
{
$Result[$value][] = $shuffledPeople[$count];
$count++;
if ($count>=$arrayCount)
{
$bool = FALSE;
break;
}
}
}
To view the results, all you would need to do is:
foreach ($Result as $key => $value)
{
echo "{$key}: <br>";
if (is_array($value))
{
foreach ($value as $something)
{
echo "-->{$something}<br>";
}
}
else
{
echo "-->{$value}<br>";
}
}
I believe that this is what you want to do...
Assume that you have $people and $test arrays. You want to know how many people per test...
$ppt = ceil(sizeof($people)/sizeof($test));
Now, $ppt is the people per test. The next step is to shuffle up the people so they are randomly assigned to the tests.
shuffle($people);
Now, we can chunk up the people into sub-arrays such that each sub-array is assigned to a test. Remember, the chunks are random now because we shuffled.
$chunks = array_chunk($people, $ppt);
Now, everyone in $chunks[0] will take $test[0]. Everyone in $chunks[1] will take $test[1]. Everyone in $chunks[2] will take $test[2].
i've a array problem couldn't just solve it:
here's the code that is already in a foreach loop. i'm getting the $row->class_id value from this loop. it works fine and get me the total students row within an array and i preserved it in $total_student_of_this_class variable. i used another foreach loop for storing the result of first loop and then second loop and so on. but this loop gives only first loop result.
i need to combine the all array of total iteration of the loop.
$total_student_of_this_class =
$this->db->select('student_id')->where('class_id',
$row->class_id)->get('student')->result_array();
echo count($total_student_of_this_class);
// prints 2 in the first row of the output table and 5 in the second
row for me.
$total_student = array();
foreach ($total_student_of_this_class as $tt)
{
$total_student[] = $tt;
}
echo '<pre>';
print_r($total_student_of_this_class);
echo '</pre>'
echo count($total_student);
// prints only 2 outside the loop (not 7)
pls someone help me.
The problem here is seems to be with $total_student = array();: initializing array inside an other loop it always starts it from zero values array, so you get only results from one iteration inside it and doesn't collect all datas.
You can also look at array_merge php function.
i'm making a grocerylist system that takes into account amount of recipies you throw at it.
based on that, it combines values and outputs a grocerylist for you.
i'm looping a mysql query and create arrays like this:
foreach sql loop{
$ingredients = array(
"id"=>array($id),
"name"=>array($name),
"amount"=>array($amount),
"unit"=>array($unit)
);
foreach ($ingredienser as $key => $value) {
foreach ($value as $index => $v) {
echo $key."=";
echo $v;
echo "<br><hr>";
}
}
}
That whole ordeal outputs a list like this if i throw 1 recipe at it:
id=150
name=Cherrytomater
amount=300
unit=Gram
id=151
name=Kyllingfilet
amount=4
unit=Stykk
if i throw 2 recipies it throws the next recipe under it.
However, i need it to do a certain set of things.
merge values if the name is similar
ignore the above merge if unit is different (its a shopping list after all)
output a combined list of ingredients based on the recipies and amount of recipies i throw at it.
To further explain; the sql equivalent of what im trying to achieve is :
$dupe = "2" //amount of similar recipies
SELECT i.id, i.ingred, r.enhet, r.id, SUM(r.mengde * $dupe) total, r.enhet FROM oppskriftingred r left join ingrediens i on i.id = r.ingrediens WHERE r.oppskriftid IN $vars2 GROUP BY i.ingred, r.enhet ORDER BY i.ingred
However, the sql approach wont work as the SUM doesn't differentiate between different recipies.. if $ dupe is 4 for one recipe and 2 for another, its 4 for both.
So how can i do this in php with arrays? Any help is greatly appreciated!
Your "this is what I need list" has one problematic point:
1. merge value if the name is SIMILAR
The rest is quite simple. You have an array of ingerdients $ingredients. You need to loop through this and compare every entry to a result array, to figure out if your points 2 and 1 match it to a existing or new entry. I would give the new array a key, that makes matching easy. Let's say the unit and the name as a string: 'Gram-Cherrytomater'
$result = array();
foreach ($ingerdients as $item) {
$newKey = $item['unit'].'-'.$item['name'];
if (isset($result[$newKey]) {
// add amount to existing item
$result[$newKey]['amount'] += $item['amount'];
} else {
// add new item
$result[$newKey] = $item;
}
}
// now loop trough the result and display whatever you want
The problem is with the SIMILAR thing. I do not know, how you want to compare to strings that are similar. You should do this when getting the $newKey. Do something with $item['name'] to make it "similar".
You could use some php function like similar_text(), levenshtein() or soundex(). I do not know how good this works for your language (Danish?).
I have this code:
$fookerdos = '';
foreach (glob("records/*/*/kerdos.txt") as $somekerdos) {
$fookerdos .= file_get_contents($someposoA);
//to print them i you want
print $fookerdos;
So my problem that for this code will outputs many numbers becouse of many files.
for example will out output this
3.5 -6.7 6.68 -0.2 and so on..
now i want all this numbers to make them (addition)
i know how to addition some 2-3 variables, but i additions many numbers that I even dont know how many they are.
for example
print "3.5 + "-6.7" "6.68" "-0.2";
Thx :)
Does each file contain only a single number, or can they have more than one numbers?
From your previous edits, it seems as if one file contain only a number.
In that case, you can store the values in an array and sum the numbers using array_sum() or perform any other calculation as needed.
Here is a sample code for you:
$fookerdos = array ();
foreach (glob("records/*/*/kerdos.txt") as $somekerdos) {
$fookerdos[] = file_get_contents($somekerdos);
}
echo array_sum ($fookerdos);