php array_merge和数组相加的区别

两个数据合并能够用array_merge函数也能够用+运算符进行合并操做 java $arr1 = array("a"=>"PHP","b"=>"java","python");python $arr2 = array("c" =>"ruby","d" => "c++","go","a"=> "swift");c++ $arr3 = array_merge($arr1,$arr);swift $a

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