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PHP 运算符
tryphp_oper_arr_union
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<!DOCTYPE html> <html> <body> <?php $x = array("a" => "red", "b" => "green"); $y = array("c" => "blue", "d" => "yellow"); print_r($x + $y); // union of $x and $y ?> </body> </html>
Array ( [a] => red [b] => green [c] => blue [d] => yellow )