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函数in_array( )，第1个参数是数组，可以么？解决方案

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Release： 2016-06-13 12:35:09
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函数in_array( )，第1个参数是数组，可以么？

<br />
<?<br />
    $x1=array(1=>111,2=>222,3=>333);<br />
    $x2=array(1=>777,2=>111,3=>222,4=>333)<br />
    $y=in_array($x1,$x2);           //第1个参数是数组。<br />
    echo $y;<br />
    echo "\r\n";<br />
?><br />
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