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This article mainly introduces what is the sorting function of the array in PHP. It is very detailed and has a certain reference value. Friends who are interested must read it!

PHP array sorting

Elements in an array can be sorted in ascending or descending order alphabetically or numerically.

There are several sorting functions for arrays in PHP:

Sort ()-sorts the array in ascending order

Rsort ()-sorts the array in descending order

Asort ()-sorts associative arrays in ascending order by value

Ksort ()-sorts associative arrays in ascending order by key

Arsort ()-sorts associative arrays by value in descending order

Krsort ()-sorts associative arrays in descending order by key

Sort the array in ascending order-sort ()

/ / sort the elements in the array $cars in ascending alphabetical order; / / sort the elements in the array $numbers in ascending numerical order:

Sort the array in descending order-rsort ()

/ / sort the elements in the array $cars in descending alphabetical order: / / sort the elements in the array $numbers in descending numerical order:

Sort the array in ascending order by value-asort ()

Sort the array in ascending order by key-ksort ()

Sort the array in descending order by value-arsort ()

Sort the array in descending order by key-krsort ()

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