What is the sorting function of the array in PHP
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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