I'm trying to combine 2 arrays and replace the the $x array cells with the $y cells.
I have this code:
<?php
$x = array (
'a' => '1',
'b' => '2',
'd' => '6'
);
$y = array (
'a' => '3',
'b' => '4',
'c' => '5'
);
how can I get an array like this:
a => 3,
b => 4,
c => 5,
d => 6
?
Thanks.
Use array_merge function.
$z = array_merge($x, $y);
Will output:
Array
(
[a] => 3
[b] => 4
[d] => 6
[c] => 5
)
Use array_merge and make sure you put the array that you want to override first.
So in your case since you want $y to overrride $x use: array_merge($x,$y);
Related
I have a page that has 4 widgets each getting data from the database. Each widgets gets data in different formats since i have a table widget, a statistics widget and a widget with just one value.
Supposing i have the results of queries returning data say in this format
$arr1 = array(1, 3, 5);
$arr2 = array(2, 4, 6);
$test1 = array(
'11' => '11',
'22' => '22',
'33' => '33',
'44' => '44'
);
$array1 = array(0 => 'zero_a', 2 => 'two_a', 3 => 'three_a');
$array2 = array(1 => 'one_b', 3 => 'three_b', 4 => 'four_b');
how can i pass the arrays as json encoded as one but retains their array structure on the client side for easier and faster creating on widget views?.
I have looked at array_merge and according to the docs, that's not what i am looking for.
how can i pass the arrays as json encoded as one but retains their array structure on the client side for easier and faster creating on widget views?.
You might arrange each array to be json encoded together like so:
$bundle = json_encode([$arr1, $arr2, $test1, $array1, $array2]);
Result:
[[1,3,5],[2,4,6],{"11":"11","22":"22","33":"33","44":"44"},{"0":"zero_a","2":"two_a","3":"three_a"},{"1":"one_b","3":"three_b","4":"four_b"}]
If I understood your issue correctly, you can assign your arrays to a multidimensional array.
Based in your example:
$dataArray = [];
$arr1 = array(1, 3, 5);
$arr2 = array(2, 4, 6);
$dataArray['data_type_one'][] = $arr1;
$dataArray['data_type_one'][] = $arr2;
$test1 = array(
'11' => '11',
'22' => '22',
'33' => '33',
'44' => '44'
);
$dataArray['data_type_two'] = $test;
$array1 = array(0 => 'zero_a', 2 => 'two_a', 3 => 'three_a');
$array2 = array(1 => 'one_b', 3 => 'three_b', 4 => 'four_b');
$dataArray['data_type_three'][] = $array1;
$dataArray['data_type_three'][] = $array2;
You will end up with this array structure:
Array
(
[data_type_one] => Array
(
[0] => Array
(
[0] => 1
[1] => 3
[2] => 5
)
[1] => Array
(
[0] => 2
[1] => 4
[2] => 6
)
)
[data_type_two] => Array
(
[11] => 11
[22] => 22
[33] => 33
[44] => 44
)
[data_type_three] => Array
(
[0] => Array
(
[0] => zero_a
[2] => two_a
[3] => three_a
)
[1] => Array
(
[1] => one_b
[3] => three_b
[4] => four_b
)
)
)
Then, in your views, you can do whatever you need:
foreach ($arrayData['data_type_one'] as $someData) {
echo $someData[0] . ' ';
//will print 1 2
}
echo $dataArray['data_type_two']['11'];
//will print 11
Below is an output of my array
$array1 = Array ( [d] => 5 [e] => 1 [a] => 3 [b] => 3 [c] => 3 [f] => 3 )
I want to sort it like...
Array ( [d] => 5 [a] => 3 [b] => 3 [c] => 3 [f] => 3 [e] => 1)
I am using arsort($array1)
which results in var_dump($array1)
array (size=6)
'd' => int 5
'f' => int 3
'c' => int 3
'a' => int 3
'b' => int 3
'e' => int 1
anyways to fix this?
Try this :
$array1 = [
'd' => 5,
'e' => 1,
'a' => 3,
'b' => 3,
'c' => 3,
'f' => 3
];
array_multisort(array_values($array1), SORT_DESC, array_keys($array1), SORT_ASC, $array1);
print_r($array1);
Here first array_values($array1), SORT_DESC will sort the values in descending order and then array_keys($array1), SORT_ASC will sort the keys into ascending order and finally both the thing applies to the main array i.e. $array1.
O/P - Array ( [d] => 5 [a] => 3 [b] => 3 [c] => 3 [f] => 3 [e] => 1 )
I hope this time I get what you want. Finger crossed !!!
you can work like this its working.
<?php
$array1 = array( "[d]" => 5,"[e]" => 1,"[a]" => 3,"[b]" => 3,"[c]" => 3,"[f]" => 3 );
$a = arsort($array1);
foreach($array1 as $x => $x_value) {
echo "Key=" . $x . ", Value=" . $x_value;
echo "<br>";
}
?>
output:
Key=[d], Value=5
Key=[f], Value=3
Key=[c], Value=3
Key=[a], Value=3
Key=[b], Value=3
Key=[e], Value=1
You can use uasort for this.
$array = array('d' => 5, 'e' => 1, 'a' => 3, 'b' => 3, 'c' => 3, 'f' => 3);
function cmp($a, $b) {
if ($a == $b) {
return 0;
}
return ($a > $b) ? -1 : 1;
}
uasort($array, 'cmp');
print_r($array);
I tested the code and surely it will work for you.
I have an array
Array ( [0] => '2' [1] => '3' [2] => '4' [3] => '5' [4] => '6' [5] => '7' )
I want to join them per 3 items like below
Array ( [0] => '2,3,4' [1] => '5,6,7' )
Does anyone have an idea?
Use array_chunk() to split the array into blocks of 3 entries, then array_walk() or array_map() with a callback that uses implode() to join that block of three elements into one string with comma separators.
$result = array_map(
function ($value) {
return implode(',', $value);
},
array_chunk($myArray, 3)
);
You can use just array_chunk():
// Array definition
$array = array(0 => '2', 1 => '3', 2 => '4', 3 => '5', 4 => '6', 5 => '7');
// New array: [ 0 => [2, 3, 4], 1 => [5, 6, 7] ]
$resultArray = array_chunk($array, 3);
// Join the elements with comma
foreach($resultArray as &$row){
$row = implode(',', $row);
}
I have this code
$array = array('o' => 'one', 't' => 'three', 'f' => 'four');
array_push($array, array('s' => 'six'));
print_r($array);
that insert new key and value into the array , but when i print the new $array it returned this
Array ( [o] => one [t] => three [f] => four [0] => Array ( [s] => six ) )
i need to return like this
Array ( [o] => one [t] => three [f] => four [s] => six )
how to remove [0] => Array () from the array ?
array_push is intended for lists.
$arr = array(5, 6, 7);
array_push($arr, 8); // array(5, 6, 7, 8);
You can add elements to arrays in many ways, this is one:
$array = array('o' => 'one', 't' => 'three', 'f' => 'four');
$array["s"] = "six";
Here is another:
$array = array_merge($array, array("s" => "six"));
PHP treats lists like array(1, 2, 3); differently than associative arrays like array("foo" => "bar");. The differences are minor, but they show up with functions like array_push.
I have two arrays:
$array1 = array('a' => 1, 'b' => 2, 'c' => 3);
$array2 = array('d' => 4, 'e' => 5, 'f' => 6, 'a' => 'new value', '123' => 456);
I want to merge them and keep the keys and the order and not re-index!!
How to get like this?
Array
(
[a] => new value
[b] => 2
[c] => 3
[d] => 4
[e] => 5
[f] => 6
[123] => 456
)
I try to array_merge() but it will not be preserved the keys:
print_r(array_merge($array1, $array2));
Array
(
[a] => 'new value'
[b] => 2
[c] => 3
[d] => 4
[e] => 5
[f] => 6
[0] => 456
)
I try to the union operator but it will not overwriting that element:
print_r($array1 + $array2);
Array
(
[a] => 1 <-- not overwriting
[b] => 2
[c] => 3
[d] => 4
[e] => 5
[f] => 6
[123] => 456
)
I try to swapped place but the order is wrong, not my need:
print_r($array2 + $array1);
Array
(
[d] => 4
[e] => 5
[f] => 6
[a] => new value
[123] => 456
[b] => 2
[c] => 3
)
I dont want to use a loop, is there a way for high performance?
You're looking for array_replace():
$array1 = array('a' => 1, 'b' => 2, 'c' => 3);
$array2 = array('d' => 4, 'e' => 5, 'f' => 6, 'a' => 'new value', '123' => 456);
print_r(array_replace($array1, $array2));
Available since PHP 5.3.
Update
You can also use the union array operator; it works for older versions and might actually be faster too:
print_r($array2 + $array1);
Let suppose we have 3 arrays as below.
$a = array(0=>['label'=>'Monday','is_open'=>1],1=>['label'=>'Tuesday','is_open'=>0]);
$b = array(0=>['open_time'=>'10:00'],1=>['open_time'=>'12:00']);
$c = array(0=>['close_time'=>'18:00'],1=>['close_time'=>'22:00']);
Now, if you want to merge all these array and want a final array that have all array's data under key 0 in 0 and 1 in 1 key as so on.
Then you need to use array_replace_recursive PHP function, as below.
$final_arr = array_replace_recursive($a, $b , $c);
The result of this will be as below.
Array
(
[0] => Array
(
[label] => Monday
[is_open] => 1
[open_time] => 10:00
[close_time] => 18:00
)
[1] => Array
(
[label] => Tuesday
[is_open] => 0
[open_time] => 12:00
[close_time] => 22:00
)
)
Hope the solution above, will best fit your requirement!!
#Jack uncovered the native function that would do this but since it is only available in php 5.3 and above this should work to emulate this functionality on pre 5.3 installs
if(!function_exists("array_replace")){
function array_replace(){
$args = func_get_args();
$ret = array_shift($args);
foreach($args as $arg){
foreach($arg as $k=>$v){
$ret[(string)$k] = $v;
}
}
return $ret;
}
}
array_replace_recursive() or array_replace() is the function you are looking for
$array1 = array('a' => 1, 'b' => 2, 'c' => 3);
$array2 = array('d' => 4, 'e' => 5, 'f' => 6, 'a' => 'new value', '123' => 456);
var_dump(array_replace_recursive($array1, $array2));
Demo
I think this might help if i understand properly:
foreach ($i = 0, $num = count($array2); $i < $num; $i++)
{
$array = array_merge($array1, $arrar2[$i]);
}