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怎么搜索数据中的一个字节

WBOY
WBOYOriginal
2016-06-13 12:35:50828browse

怎样搜索数据中的一个字节
如例
$os = array ("Mac", "NT", "Irix我们是大大的好", "Linux");
if (array_search ("Irix", $os)) {
    print "数组中有Irix";
}
?>

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