算法求教,高手们进来帮帮忙
有一个数组$array[$i],如果里面有这样的值1,1,2,2,2,3,3,3,3,4,5,5,1,5.........
我想让它分类,重复的不要,最后结果1,2,3,4,5.........
应该怎么做呢?
------解决方案--------------------
array_unique
(PHP 4 > = 4.0.1, PHP 5)
array_unique -- 移除数组中重复的值
说明
array array_unique ( array array )
array_unique() 接受 array 作为输入并返回没有重复值的新数组。
注意键名保留不变。array_unique() 先将值作为字符串排序,然后对每个值只保留第一个遇到的键名,接着忽略所有后面的键名。这并不意味着在未排序的 array 中同一个值的第一个出现的键名会被保留。
注: 当且仅当 (string) $elem1 === (string) $elem2 时两个单元被认为相同。就是说,当字符串的表达一样时。
第一个单元将被保留。

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