Merge key and value of array index-CodePudding

I have an array as follows:

['foo'=>'bar','baz'=>'bat']

im trying to determine an elegant way (not using a standard forloop, prefer learning php array functions) to result in:

['foo: bar','baz: bat']

as you can see, the key and the value are joined together separated by a :

seems pretty simple, just cant figure out how to do this using an array function format. just trying to gain experience in php functions. i imagine its using implode somehow but im trying to figure out how to join the key and value together into one.

i'm on php 8.0

CodePudding user response：

Another way using array_map():

$arr = ['foo'=>'bar','baz'=>'bat'];
$combine = array_map(fn($k, $v) => "$k: $v", array_keys($arr), array_values($arr));
print_r($combine);

Output

Array
(
    [0] => foo: bar
    [1] => baz: bat
)

CodePudding user response：

$arr = [ 'foo' => 'bar', 'baz' => 'bat' ];

$result = [];

array_walk($arr, function ($value, $key) use (&$result) {
  $result[] = "$key: $value";
});