PHP:
数组转字符串:explode()
                   $str = "Hello world. It‘s a beautiful day.";
                    print_r (explode(" ",$str));
                    ?>
结果: Array(
                      [0] => Hello
                     [1] => world.
                    [2] => It‘s
                   [3] => a
                  [4] => beautiful
                 [5] => day.
                        );
字符串转数组:implode()
$array = array(‘a‘,‘b‘,‘c‘);
echo implode($array);
结果: abc
JS,JQ:
数组转换字符串:
arr=[1,2,3,4,5,6,7,8,9];
arr.join("-");
alert(arr);
结果: 1-2-3-4-5-6-7-8-9
字符串转数组:
var str= 1-2-3-4-5-6-7-8-9-
str=substring(0,str.length-1);
str=str.split(",");
alert(str);
结果:[1,2,3,4,5,6,7,8,9];
原文:http://www.cnblogs.com/docter/p/5588122.html