Array ( [0] => wilson )
Array ( [0] => umkk )
Array ( [0] => audiok )
Array ( [0] => Futurama )
I have the above users array, i'm trying to sort it alphabetically so the result looks like this
audiok
futurama
umkk
wilson
This is my php code from those lines:
$arr1 = explode("\n", $users);
sort ($arr1);
print_r($arr1);
Why isn't sort () working? It doesnt sort it at all.. what am i doing wrong? I'm new to php programming, i have looked on the php manual and have not been able to sort it after trying all these different examples posted there.
Thanks in advanced.
Edit:
preg_match_all('/control\?user=(.+?)&data/', $linklong, $users)
$users = $users[1][0];}
if i print $users all the users are displayed nicely, but when i tried to sort them it tells me is not array, so i took $users, and did explode to create the array... i'm sorry im not very programming savy –
<?php
$array1 = array(0=>'wilson');
$array2 = array(0=>'umkk');
$array3 = array(0=>'audiok');
$array4 = array(0=>'Futurama');
$array = array_merge($array1,$array2,$array3,$array4);
natcasesort($array);
echo '<pre>',print_r($array),'</pre>';
Or if you have text that is 4 names on 4 different lines that you want to explode and sort:
<?php
$text = <<<EOD
wilson
umkk
audiok
Futurama
EOD;
$arr = explode("\n",$text);
natcasesort($arr);
echo '<pre>',print_r($arr),'</pre>';
natcasesort() docs
asort() is the function that u need. Following URL contains the example and the output.
http://www.php.net/manual/en/function.asort.php
Related
I'm getting started with PHP and I have some troubles finding a way to output values from multiples arrays sent from an external site.
I did a foreach and the code that is printed looks like this :
Array
(
[id] => 1
[title] => Title 1
)
Array
(
[id] => 2
[title] => Title 2
)
Array
(
[id] => 3
[title] => Title 3
)
Any idea how I could get every id (1,2,3) in an echo?
Let me know if you need more informations!
Thanks a lot!
If you just want to echo all the id's in all the arrays, a simple solution would be:
foreach ([$array1, $array2, $array3] as $arr) {
echo $arr['id'];
}
A better solution would probably to create one main array first:
$mainArray = [];
and every time you get a new array, you just push them to the main array:
$mainArray[] = $array1;
$mainArray[] = $array2;
// ... and so on
Then you'll have a multi dimensional array and can loop them with:
foreach ($mainArray as $arr) {
echo $arr['id'];
}
Which solution that works best depends on how you get the arrays and how many they are.
Note: Using array_merge() as others have suggested will not work in this case, since all the arrays have the same keys. From the documentation on array_merge(): "If the input arrays have the same string keys, then the later value for that key will overwrite the previous one."
As you can do:
$array = array_merge_recursive($arr1, $arr2, $arr3);
var_dump($newArray['id']);
echo implode(",", $newArray['id']);
A demo code is here
I am trying to separate an array into two separate arrays. For example, if I have an array like this
Array([0]=>Hello[1]=>I'm[2]=>Cam)
I want to split it into two arrays and add another string
Array1([0]=>Hello[1]=>There,)
Array2([0]=>I'm[1]=>Cam)
Then finally add the two together
Array([0]=>Hello[1]=>There,[2]=>I'm[3]=>Cam)
What would be the simplest way to do this?
I know I can use array merge to put the two together but I don't know how to separate them at a certain point.
I'm also doing this on a large file that will be constantly getting bigger, so I cant use array_chunk()
Looking at your end result goal, I think a shorter method to get your desired response is to use array_splice which lets you insert into a middle of an array....
$arrayVarOriginal = array('Hello', 'Im', 'Cam');
$arrayVarExtra = array('There');
array_splice($arrayVarOriginal, 1, 0, $arrayVarExtra);
This should send you back Array([0]=>Hello[1]=>There,[2]=>Im[3]=>Cam) like you wanted!
The above avoids having to split up the array.
HOWEVER
If you did want to do it the hard way, here is how you would...
$arrayVarOriginal = array('Hello', 'Im', 'Cam');
$array1stPart = array(arrayVarOriginal[0], 'There');
$array2ndPart = array_shift($array1stPart);
$finalArray = array_merge($array1stPart, $array2ndPart);
How? array_shift removes the first item from any array, so that how we get $array2ndPart.... and $array1stPart is even easier as we can just manually build up a brand new array and take the first item from $arrayVarOriginal which is at position 0 and add 'There' in as our own new position 1.
Hope that helps :)
array_shift, array_splice, and array_merge are what you need to look into.
Based from your question, here step-by-step to get what you want for your final output.
1) Split Array
$arr = array('Hello', 'I\'m', 'Cam');
$slice = count($arr) - 1;
$arr1 = array_slice($arr, 0, -$slice);
$arr2 = array_slice($arr,1);
so, you get two new array here $arr1 and $arr2
2) Add new string
$arr1[] = "There";
3) Finally, combine the array
$arr = array_merge($arr1, $arr2)
Here sample output when you print_r the $arr
Array
(
[0] => Hello
[1] => There
[2] => I'm
[3] => Cam
)
array_slice second parameter is position where you want split. So you can do this dynamically by count the array length.
$string = array("Hello","I'm","Cam");
$firstArray = array_slice($string ,0,1);
array_push($firstArray,"There,");
$secondArray = array_slice($string ,1,2);
echo "<pre>";
print_r($firstArray);
echo "==========="."<pre>";
print_r($secondArray);
echo "<pre>";
print_r(array_merge($firstArray,$secondArray));
//out put
Array
(
[0] => Hello
[1] => There,
)
===========
Array
(
[0] => I'm
[1] => Cam
)
Array
(
[0] => Hello
[1] => There,
[2] => I'm
[3] => Cam
)
Hope it will be worked for your requirement. If not or you need more specify regarding this you can clarify your need.
$array = array('0'=>'5', '1'=>'4', '2'=>'1', '3'=>'2');
Array
(
[0] => 5
[1] => 4
[2] => 1
[3] => 2
)
Expecting result
Array
(
[0] => 1
[1] => 2
[2] => 4
[3] => 5
)
$array = array('0'=>'5', '1'=>'4', '2'=>'1', '3'=>'2');
$results = [];
foreach($array as $key=>$value){
$results[$key] = arsort($value);
}
echo "<pre>";
print_r($results);
Please suggest how do we can sort associative array i did try but does not work for me please guide
As per your "expected results' it seems like you don't wish to maintain the keys. If that's the case then you can just use sort.
Something like this..
$array = array('0'=>'5', '1'=>'4', '2'=>'1', '3'=>'2');
sort($array);
print_r($array);
Just do
sort($array);
Also check the PHP documentation if you need further customization: http://php.net/manual/en/function.sort.php
var_dump( array_reverse($array,false));
you don't need to use foreach or sort ,you can just use array_reverseinstead ,avery simple way
You don't need to iterate using foreach for sorting
Just use sort for sorting array
$array = array('0'=>'5', '1'=>'4', '2'=>'1', '3'=>'2');
sort($array);
print_r($array);
This will not maintain array keys and if you want arrays keys to be same just replace sort with asort in above code
I have make many changes but still cannot figure out.
i have an array let say: [1,2,3,4,5,6,7,8,9,10]
i just want to ask how to add this array until index 2 and continued add for rest array then divide them by 2 array each.
input : [1,2,3,4,5,6,7,8,9,10 ];
process : [1+2+3, 4+5+6, 7+8+9, 10]
output i need : [6,15,24,10]
then i want to cut this array into 2
last output : [[6,5],[24,10]]
Thanks
Your code will be:
$data = range(1,10);
$result = array_chunk(array_map('array_sum', array_chunk($data, 3)), 2);
-please, read array functions manual
Something like this?
<?php
$array = range(1, 10);
$array = array_chunk($array, 3);
$array = array_map('array_sum', $array);
$array = array_chunk($array, 2);
print_r(
$array
);
/*
Array
(
[0] => Array
(
[0] => 6
[1] => 15
)
[1] => Array
(
[0] => 24
[1] => 10
)
)
*/
I think you can use a for cycle to sum what you need then store result in new array. Another solution is using array merge. When you've done the trick you can create a multidimensional array to get the result like [[6,5],[24,10]].
Hope it helps
Can't really see what you are getting at from the question, but I think PHP's array_chunk command may be your friend on this, http://www.php.net/manual/en/function.array-chunk.php
this will allow you to split the array into chunks of 3 (or any number) of elements with last element containing the remainder (in this case 1 element)
I have 2 arrays:
$array1 = array(1,2,3,4,5);
$array2 = array(3,4,5,6,7);
Is there any PHP function that does this?
$finalArray = unknown_php_function($array1,$array2);
// result: $finalArray = array(3,4,5);
It merges both arrays and removes values which aren't present in both arrays. Do I have to build a foreach cycle or is there an easier way? Thanks
You want array_intersect for this, basically the intersection of two sets (arrays, in this case), just like in school. :-)
You're looking for array_intersect(). Here is a demo:
$array1 = array(1,2,3,4,5);
$array2 = array(3,4,5,6,7);
$finalArray = array_intersect($array1,$array2);
print_r($finalArray);
Outputs:
Array
(
[2] => 3
[3] => 4
[4] => 5
)