array_merge php code example

Example 1: php array_merge

<?php
$array1 = array("color" => "red", 2, 4);
$array2 = array("a", "b", "color" => "green", "shape" => "trapezoid", 4);
$result = array_merge($array1, $array2);
print_r($result);
?>
Array
(
    [color] => green
    [0] => 2
    [1] => 4
    [2] => a
    [3] => b
    [shape] => trapezoid
    [4] => 4
)

Example 2: php merge 2 arrays

<?php
  $array1 = [
      "color" => "green"
  ];
  $array2 = [
      "color" => "red", 
      "color" => "blue"
  ];
  $result = array_merge($array1, $array2);
?>

// $result
[
    "color" => "green"
    "color" => "red", 
    "color" => "blue"
]

Example 3: array_push php

<?php
$cesta = array("laranja", "morango");
array_push($cesta, "melancia", "batata");
print_r($cesta);
?>

Example 4: array merge in php

/* Array merge is basically use to merge the two array data. */
  
<?php
$a1=array("red","green");
$a2=array("blue","green","yellow");
print_r(array_merge($a1,$a2));
?>
  
/*
Output:
Array ( [0] => red [1] => green [2] => blue [3] => green [4] => yellow )
*/
  
<?php
$a1=array("a"=>"red","b"=>"green");
$a2=array("c"=>"blue","b"=>"yellow");
print_r(array_merge($a1,$a2));
?>

/*
Output:
Array ( [a] => red [b] => yellow [c] => blue )
*/
  
/* In above example you can check the difference in output 
it takes all values of both array in final output, but not in associative array you can check.
because one value gets overwritten by same key reference in both array.
*/

Example 5: array_push php

// array_push ( array &$array [, mixed $... ] ) : int
// array_push() treats array as a stack, and pushes the passed variables onto the end of array. The length of array increases by the number of variables pushed. Has the same effect as:

<?php
$array[] = $var;
?>
// repeated for each passed value.
// Note: If you use array_push() to add one element to the array, it's better to use $array[] = because in that way there is no overhead of calling a function.

Example 6: php array merge

array_merge ([ array $... ] ) : array