php usort example

Use the PHP function usort () to implement custom sorting. There are many ways to sort arrays in, including sorting by value, by keyword, and by natural language. Today, we want to teach you how to use the PHP function usort () to sort arrays in

From:http://www.php100.com/cover/php/2395.htmlUsort(PHP 4, PHP 5)usort- using a user-defined comparison function to sort values in an arrayDescriptionBOOL usort ( array & $array , callback $cmp _function ) This function will use a user-defined

Is there a performance difference between array_multisort and usort functions used to process two-dimensional array or multi-dimensional array sorting? Is there a performance difference between array_multisort and usort functions used to process two-

There are many ways to sort arrays in, including sorting by value, sorting by keywords, natural language sorting, and so on. What we're going to teach you today is to implement a custom array ordering using PHP function Usort (). You can create your

Are there any performance differences between the two functions that handle two-dimensional arrays or multidimensional array sorting, using Array_multisort and Usort respectively? Reply content: Are there any performance differences between the

There are many ways to sort arrays in, including sorting by value, by keyword, and by natural language. What we want to teach you today is to use the PHP function usort () to sort custom arrays. You can create your own comparison function and pass

This article mainly introduces the usage of php array sorting usort, uksort and sort functions, and introduces the application of usort, uksort and sort functions in array sorting, which has good reference value, for more information, see the

Common array functions in php (8) sorting functions (sort, rsort, usort, asort, uasort, arsort, ksort, uksort, krsort, natsort, natcasesort, array_multisort), natcasesort Test environment: php5.3.29   sort_flagsYou can use the following values

one-dimensional array ordering can be Asort, Ksort, and other methods of process sequencing, relatively simple. How does the ordering of the two-dimensional arrays be implemented? This can be achieved using Array_multisort and Usort. For example,

Php usort uses a user-defined comparison function to sort values in two-dimensional arrays. Today, we found a php method that uses 2D array sorting, usort, which is recommended to everyone. In the next two-dimensional array, sort by the value of a