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Array Operators

The only array operator in PHP is the + operator. It appends the right handed array to the left handed, whereas duplicated keys are NOT overwritten.

$a = array("a" => "apple", "b" => "banana");
$b = array("a" =>"pear", "b" => "strawberry", "c" => "cherry");

$c = $a + $b;

 var_dump($c);

When executed, this script will print the following:
array(3) {
  ["a"]=>
  string(5) "apple"
  ["b"]=>
  string(6) "banana"
  ["c"]=>
  string(6) "cherry"
 }

See also the manual sections on the Array type and Array functions.

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