ArrayIterator::uasort

(PHP 5 >= 5.2.0, PHP 7)

ArrayIterator::uasort — Sort with a user-defined comparison function and maintain index association

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public ArrayIterator::uasort ( callable $cmp_function ) : void

This method sorts the elements such that indices maintain their correlation with the values they are associated with, using a user-defined comparison function.

Note:

If two members compare as equal, their relative order in the sorted array is undefined.

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cmp_function

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callback ( mixed $a, mixed $b ) : int

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锟轿硷拷

  • ArrayIterator::asort() - Sort array by values
  • ArrayIterator::uksort() - Sort by keys using a user-defined comparison function
  • usort() - 使锟斤拷锟矫伙拷锟皆讹拷锟斤拷谋冉虾锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷械锟街碉拷锟斤拷锟斤拷锟斤拷锟�