CODEWITHSUNDEEP
phparraysarray-merge
tenten
tenten

Reputation: 1276

Merging 3 arrays in PHP

I have 3 arrays as below.

$array1 = Array
(
    [0] => 05/01
    [1] => 05/02
)

$array2 =Array
(
    [0] => ED
    [1] => P
)

$array3 =Array
(
    [0] => Mon
    [1] => Tue

)

I want to merge these 3 arrays as below $result_array. I have written a code as below. But It gave a empty array.

$result_array =Array
(
    [0] => Array
        (
            [0] => 05/01
            [1] => ED
            [2] => Mon
        )
    [1] => Array
        (
            [0] => 05/02
            [1] => P
            [2] => Tue
        )
)

Code:

for($z=0; $z<count($array1); $z++){
    $all_array[$z][] = array_merge($array1[$z],$array2[$z] );
    $all_array2[$z] = array_merge($all_array[$z],$array3[$z] );
}

Please help me to do this.

Upvotes: 9

Views: 19189

Answers (6)

Ali Faris
Ali Faris

Reputation: 18602

this work for n of arrays and dynamic length of array

function mergeArrays(...$arrays)
{

    $length = count($arrays[0]);
    $result = [];
    for ($i=0;$i<$length;$i++)
    {
        $temp = [];
        foreach ($arrays as $array)
            $temp[] = $array[$i];

        $result[] = $temp;
    }

    return $result;

}

$x = mergeArrays(['05/01' , '05/02'] , ['ED' , 'P'] , ['Mon' , 'Tus']);
$y = mergeArrays(['05/01' , '05/02' , 'X'] , ['ED' , 'P' , 'Y'] , ['Mon' , 'Tus' , 'Z'] , ['A' , 'B' , 'C']);

var_dump($x);
var_dump($y);

Upvotes: 2

Suneel Kumar
Suneel Kumar

Reputation: 1664

Create an sample array and push to each array value with respective key

$sample = array();
for($z=0; $z<count($array1); $z++){
    $sample[]=array($array1[$z],$array2[$z],$array3[$z]);
}
print_r($sample);

Out put is 

Array ( [0] => Array ( 
               [0] => 05/01 
               [1] => ED 
               [2] => Mon 
        ) 
        [1] => Array ( 
               [0] => 05/02 
               [1] => P 
               [2] => Tue 
        ) 
)

Upvotes: 2

Ashok
Ashok

Reputation: 128

$array1 = Array
(
    '05/01',
    '05/02'
);

    $array2 = Array
(
    'ED',
    'P'
);

$array3 =Array
(
    'Mon',
    'Tue'
);
$result_array = array();
foreach ($array1 as $key=>$val)
{
    $result_array[$key] = array($array1[$key],$array2[$key],$array3[$key]);
}
echo "<PRE>"; print_r($result_array);

Upvotes: 1

Styphon
Styphon

Reputation: 10447

You can simply walk through the first array with a foreach loop then access the corresponding arrays and combine the results into one big array. This will only work if the arrays are the same length so it's worth checking that before to stop any errors. Something like this:

<?php
$arr1 = ['05/01', '05/02'];
$arr2 = ['ED', 'P'];
$arr3 = ['Mon', 'Tue'];

$combined = [];
if (count($arr1) != count($arr2) || count($arr1) != count($arr3))
  die("Array lengths do not match!");

foreach ($arr1 as $key => $val) {
    $combined[] = [$val, $arr2[$key], $arr3[$key]];
}

var_dump($combined);

You can see an eval.in of this working here - https://eval.in/833893

Upvotes: 2

Harshit Gupta
Harshit Gupta

Reputation: 19

function merge($file_name, $titles, $description)
 {
    $result = array();
    foreach($file_name as $key=>$name )
    {
      $result[] = array( 'file_name' => $name, 'title' => $titles[$key], 
     'description' => $description[ $key ] );
    }
    return $result;
}

Upvotes: 1

RiggsFolly
RiggsFolly

Reputation: 94662

Simply foreach over the first array and use the index as the key to the other arrays.

foreach ( $array1 as $idx => $val ) {
    $all_array[] = [ $val, $array2[$idx], $array3[$idx] ];
}

Remember this will only work if all 3 arrays are the same length, you might like to check that first

Upvotes: 14

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