Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 6 years ago.
Improve this question
I've got an unusual problem, but I'm fairly certain it's not impossible to solve.
Consider the two arrays below.
Array ( [0] => 1 [1] => 2 [2] => 2 )
Array ( [0] => 879 [1] => 482 [2] => 1616 )
I need to add the values in second array where the values in the first array are the same so that I would end up with...
Array ( [0] => 879 [1] => 2098 )
How might this be accomplished? Thanks in advance!
This isn't a full-proof way of completing this task, but it achieves the goal you desire. What's happening here is we're looping through your first array (the keys) and using the set values of these keys to add the values from the second array:
$new = array();
foreach($keys as $i => $key) {
if(!isset($new[$key])) { $new[$key] = 0; }
$new[$key] += $vals[$i];
}
Example/Demo
Notes
$keys being your first array: $keys = array(1, 2, 2);
$vals being your second array: array (879, 482, 1616);
As I stated, this isn't full-proof. You will need to modify it to ensure integrity, but it is a start that shows the flow of how you can go about doing what you require.
Related
Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 2 months ago.
Improve this question
my string has
$string = "apple,banana,orange,lemon";
I want to as
$array = [
[apple,banana],
[orange,lemon]
]
Use array_chunk in combination with explode defined in php https://www.php.net/manual/en/function.array-chunk.php
<?php
$string = "apple,banana,orange,lemon";
$input_array = explode (",", $string);
print_r(array_chunk($input_array, 2));
?>
Will output as below:
Array
(
[0] => Array
(
[0] => apple
[1] => banana
)
[1] => Array
(
[0] => orange
[1] => lemon
)
)
I hope this helps you get on your way. To transform a string to an array, you can use
$elements = explode(',', $string);
This will leave you with this array: ($elements == [apple,banana,orange,apple])
From there, you can build it the way you want, like:
$array[] = [$elements[0], $elements[1]];
$array[] = [$elements[2], $elements[3]];
This results in the array you are looking for, but this solution is only for the string you've given with four elements, separated by comma.
Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 1 year ago.
The community reviewed whether to reopen this question 1 year ago and left it closed:
Original close reason(s) were not resolved
Improve this question
im recieveing an output in the following format.When i foreach the loop only one id is iterated i need to combine these array into one single array so i can iterate all the ids.
Array
(
[0] => 6902680092829
)
Array
(
[0] => 6902680125597
)
Array
(
[0] => 6902680158365
)
Array
(
[0] => 6902680223901
)
Array
(
[0] => 6902680256669
)
i want to combine this array into one single array for eg:
array:{
0=>1,
1=>2,
2=>3
}
im adding shopify product id one by one to an array by doing this
$prdid=[];
array_push($prdid,$shopifyCustomers['body']['container']['product']['id']);
You can simply use array_merge()
$arr1 = [ 6902680092829 ];
$arr2 = [ 6902680125597 ];
$arr3 = [ 6902680158365 ];
$arr4 = [ 6902680223901 ];
$arr5 = [ 6902680256669 ];
$newArr = array_merge($arr1, $arr2, $arr3, $arr4, $arr5);
Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 2 years ago.
Improve this question
I have array like below:
$arr=[["id"=>"001","name"=>"Hello","pict"=>"hello.jpg"],["id"=>"002","name"=>"Abc","pict"=>"abc.jpg"]];
i want to add one more element to array $arr by "link"=>"uploads/hello.jpg"
My expected result:
$arr=[["id"=>"001","name"=>"Hello","pict"=>"hello.jpg","link"=>"uploads/hello.jpg"],["id"=>"002","name"=>"Abc","pict"=>"abc.jpg","link"=>"uploads/abc.jpg"]];
Any solution for this thank.
You can iterate over the array using foreach, passing a reference into the loop to allow the values to be modified directly:
$arr=[["id"=>"001","name"=>"Hello","pict"=>"hello.jpg"],["id"=>"002","name"=>"Abc","pict"=>"abc.jpg"]];
foreach ($arr as &$a) {
$a['link'] = 'uploads/' . $a['pict'];
}
print_r($arr);
Output:
Array
(
[0] => Array
(
[id] => 001
[name] => Hello
[pict] => hello.jpg
[link] => uploads/hello.jpg
)
[1] => Array
(
[id] => 002
[name] => Abc
[pict] => abc.jpg
[link] => uploads/abc.jpg
)
)
Demo on 3v4l.org
You can iterate over each element in the array and set it that way.
for ($i = 0; $i < count($arr); i++) {
$arr[$i]['link'] = 'uploads/'.$arr[$i]['pict'];
}
foreach($arr as $key => $value){
$arr[$key]['link'] = "uploads/".$value['pict'];
}
Use the foreach loop to modify the original array. The $key value is used to refer to each index in the array.
Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 3 years ago.
Improve this question
I want to get only the distinct values from $pjt. I have tried the below code:
$unique_pjtdata = array_unique($pjt);
foreach($unique_pjtdata as $val) {
echo $val;
}
I am getting an HTTP Error 500 after trying this code.
Use array_unique().
Example:
$pjt = array(1, 2, 2, 3);
$array = array_unique($pjt);
and if you still get error then you need to enable error reporting to know error.
You can use array_flip() to switch the keys and values in the array therefore forcing duplicate values to overwrite into a unique set of keys:
$b = ["test1", "test2", "test1", "test3"];
$b = array_flip($b);
print_r( $b );
//output
Array
(
[test1] => 2
[test2] => 1
[test3] => 3
)
You can then extract the keys using array_keys():
$b = array_keys($b);
print_r($b)
// output
Array
(
[0] => test1
[1] => test2
[2] => test3
)
Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 6 years ago.
Improve this question
I have a database table that would return an array something like this
$roles['admin'] = 'app1,app2,app3';
$roles['moderator'] = 'app2,app3';
Now I want to traverse this array to show in my view, But instead of showing all apps inside each role, i would like to show all roles inside each app.
So ideally i would like the above array to become this
$apps['app1'] = 'admin';
$apps['app2'] = 'admin,moderator';
$apps['app3'] = 'admin,moderator';
I have been trying to solve this for 2 hours now, but for some reason I can't find an efficient way of doing this.
The following will traverse your array and load it into the appropriate array. It works by going through each part of the array and traversing it.
<?php
$apps = array();
foreach($roles as $key1 => $value1){
$parts = explode(',', $value1);
foreach($parts as $key2 => $value2){
$apps[$value2] .= (strlen($apps[$value2])>0)?",":"").$key1;
}
}
?>
You can map one array to the other by using array_reduce, array_keys and explode to turn your CSV values into arrays
$apps = array_reduce(array_keys($roles), function($apps, $key) use ($roles) {
foreach (explode(',', $roles[$key]) as $app) $apps[$app][] = $key;
return $apps;
}, []);
Note that the result is slightly different to what you wanted in that the values are themselves arrays instead of comma separated strings.
Array
(
[app1] => Array
(
[0] => admin
)
[app2] => Array
(
[0] => admin
[1] => moderator
)
[app3] => Array
(
[0] => admin
[1] => moderator
)
)
If you really need CSV values, add this
$apps = array_map(function($list) {
return implode(',', $list);
}, $apps);
which produces
Array
(
[app1] => admin
[app2] => admin,moderator
[app3] => admin,moderator
)