Implode columnar values between two arrays into a flat array of concatenated strings

phparraysconcatenationarray-map


PHP Snippet 1:

// updated version
$a = ['a', 'b', 'c'];
$b = ['d', 'e', 'f', 'g']; 
print_r(array_map('implode', array_map(null, $a, $b)));

PHP Snippet 2:

//updated version
$array_A = ['foo', 'bar', 'quuz'];
$array_B = ['baz', 'qux', 'corge'];

for ($i = 0, $c = count($array_A); $i<$c; $i++) {
    $result[$i] = $array_A[$i].$array_B[$i];
}

var_dump($result);

PHP Snippet 3:

function array_zip($a1, $a2) {
  $out = [];
  for($i = 0; $i < min(sizeof($a1), sizeof($a2)); $i++) {
    array_push($out, $a1[$i] .  $a2[$i]);
  }
  return $out;
}

PHP Snippet 4:

$a = ["foo", "bar"];
$b = ["baz", "qux"];
print_r(array_zip($a, $b));

PHP Snippet 5:

Array
(
    [0] => foobaz
    [1] => barqux
)

PHP Snippet 6:

$A = ['foo', 'bar'];
$B = ['baz', 'qux'];

function arraySquish($array) 
{
  $new = [''];
  foreach($array as $val) {
    $new[0] .= $val;
  }

  return $new;
}

$A = arraySquish($A);
$B = arraySquish($B);

echo '<pre>';
print_r($A);
print_r($B);
echo '</pre>';

PHP Snippet 7:

<?php

$colours  = ['red', 'white', 'blue'];
$items    = ['robin', 'cloud', 'mountain']; 

$squished =
    array_map(
        function($colour, $item) {
            return $colour.$item;
        },
        $colours,
        $items
    );

var_export($squished);

PHP Snippet 8:

array (
    0 => 'redrobin',
    1 => 'whitecloud',
    2 => 'bluemountain',
  )

PHP Snippet 9:

$b = array_intersect_key($b, $a);
$a = array_intersect_key($a, $b);

PHP Snippet 10:

$a = ['a', 'b', 'c'];
$b = ['d', 'e', 'f', 'g']; 
var_export(array_map(fn() => implode(func_get_args()), $a, $b));

PHP Snippet 11:

var_export(array_map(fn(...$column) => implode($column), $a, $b));

PHP Snippet 12:

array (
  0 => 'ad',
  1 => 'be',
  2 => 'cf',
  3 => 'g',
)

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