PHP - Sort array with another array

Question

Is there an easy way to sort an array with a variable array made for this task? For example:

$fruits [
   'Apple' => '12',
   'Cherry' => '10',
   'Lemon' => '34', 
   'Peach' => '6'
]

$order [
   1 => 'Peach',
   2 => 'Other',
   3 => 'Lemon',
   4 => 'Other2',
   5 => 'Apple',
   6 => 'Cherry',
   7 => 'Other3'
]

I'd like to return this kind of array:

$ordered_fruits [
   'Peach' => '6',
   'Lemon' => '34',
   'Apple' => '12',
   'Cherry' => '10'
]

See this example of array combine function may it will help w3schools.com/php/showphp.asp?filename=demo_func_array_combine — Owais Aslam
– Owais Aslam, Commented Apr 27, 2016 at 9:57

splash58 · Accepted Answer · 2016-04-27 10:02:42Z

11

make it with php functions:

$new = array_filter(array_replace(array_fill_keys($order, null), $fruits));

answered Apr 27, 2016 at 10:02

splash58

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3 Comments

Murad Hasan Over a year ago

how funny the PHP functions are....., We did a lot of code and you did it with some library functions.

splash58 Over a year ago

Yes, it's library has so many funs that if not the SO i forgot half of them :)

Curtis Lanz Over a year ago

This is superb, it works perfectly for what I want to achieve.

Kanishka Panamaldeniya · Accepted Answer · 2016-04-27 09:59:36Z

5

$ordered_fruits = array();
foreach($order as $value) {

   if(array_key_exists($value,$fruits)) {
      $ordered_fruits[$value] = $fruits[$value];
   }
}

answered Apr 27, 2016 at 9:59

Kanishka Panamaldeniya

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1 Comment

Murad Hasan Over a year ago

great, i took little bit time to give answer.

Ranjit Shinde · Accepted Answer · 2016-04-27 10:09:12Z

3

try this :

$fruits = array(
   'Apple' => '12',
   'Cherry' => '10',
   'Lemon' => '34', 
   'Peach' => '6'
);

$order = array(
   1 => 'Peach',
   2 => 'Other',
   3 => 'Lemon',
   4 => 'Other2',
   5 => 'Apple',
   6 => 'Cherry',
   7 => 'Other3'
);

$result = array();
foreach ($order as $key => $value) {
  if ( array_key_exists($value, $fruits) ) {
    $result[$value] = $fruits[$value];
  }
}
print_r($result );

answered Apr 27, 2016 at 10:09

Ranjit Shinde

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Comments

Murad Hasan · Accepted Answer · 2016-04-27 10:03:55Z

1

Technique of sorting:

$result = array();

foreach($order as $value){
    if(array_key_exists($value, $fruits)){
        $result[$value] = $fruits[$value];
    }
}

Result

print_r($result);

Array
(
    [Peach] => 6
    [Lemon] => 34
    [Apple] => 12
    [Cherry] => 10
)

answered Apr 27, 2016 at 10:03

Murad Hasan

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