array创建一个数组！
查看数组内容：var_dump(数组变量);
一维数组：
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<?php $ywsz=array(1,2,3,4);?>
输出：
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Array
(
[0] => 1
[1] => 2
[2] => 3
[3] => 4
)多维数组:
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<?php
$fruits = array (
"xx" => array("name" => "xiaoming", "shengao" => "165cm", "nianling" => "17"),
"numbers" => array(1, 2, 3, 4, 5, 6),
"chengji" => array("shuxue"=>"100", "yuwen" => "99", "yingyu"=>"0")
);
?>输出结果：
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array(3) {
["xx"]=> array(3) {["name"]=> string(8) "xiaoming" ["shengao"]=> string(5) "165cm" ["nianling"]=> string(2) "17" }
["numbers"]=> array(6) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) [4]=> int(5) [5]=> int(6) }
["chengji"]=> array(3) { ["shuxue"]=> string(3) "100" ["yuwen"]=> string(2) "99" ["yingyu"]=> string(1) "0" }
}
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