Merge Two Arrays Keeping Original Keys in PHP

To merge two arrays keeping original keys in PHP, the code is as follows−

Example

 Live Demo

<?php
   $arr1 = array( "p"=>"150", "q"=>"100", "r"=>"120", "s"=>"110");
   $arr2 = array("t"=>"115", "u"=>"103", "v"=>"105", "w"=>"125" );
   var_dump ($arr1 + $arr2);
?>

Output

This will produce the following output−

array(8) {
   ["p"]=> string(3) "150"
   ["q"]=> string(3) "100"
   ["r"]=> string(3) "120"
   ["s"]=> string(3) "110"
   ["t"]=> string(3) "115"
   ["u"]=> string(3) "103"
   ["v"]=> string(3) "105"
   ["w"]=> string(3) "125"
}

Example

Let us now see another example −

 Live Demo

<?php
   $arr1 = array();
   $arr2 = array("a" => "Jacob");
   var_dump ($arr1 + $arr2);
?>

Output

This will produce the following output−

array(1) {
   ["a"]=>
   string(5) "Jacob"
}