Recommended 10 articles for PHP usort ()

Sort an array: the Usort () function uses a user-defined function to sort the array, with the instance code as follows: function cmp ($a, $b)//user-defined callback function {if ($a = = $b)//If two parameters are equal {return 0;//return 0} return ($a >$

1. About PHP Uksort () functions 10 articles recommended

Summary: Sorting an array: the Usort () function uses a user-defined function to sort the array, with the instance code as follows: function cmp ($a,  $b)          //user-defined callback functions   {   if ($a = = $b)    &

2. PHP two-dimensional array sorting method (Array_multisort usort)

Summary: one-dimensional array sorting can be Asort, Ksort and other methods of process sequencing, relatively simple. How does the ordering of the two-dimensional arrays be implemented? Use Array_multisort and usort to achieve

3. How to sort the two-dimensional array in PHP

Summary: one-dimensional array sorting can be Asort, Ksort and other methods of process sequencing, relatively simple. How does the ordering of the two-dimensional arrays be implemented? Using Array_multisort and Usort can be implemented, followed by a small series to learn PHP two-dimensional array sorting problem approach

4. PHP two-dimensional array sorting method (Array_multisort usort)

Summary: one-dimensional array sorting can be Asort, Ksort and other methods of process sequencing, relatively simple. How does the ordering of the two-dimensional arrays be implemented? Use Array_multisort and usort to achieve

5. PHP array sort usort uksort sort function

Summary: PHP array sort usort uksort sort function

6. Universal Androot PHP Usort to change the original position in the same value of the solution

Introduction: Universal androot:universal androot PHP Usort in the value of the same time to change the original location problem solution: from PHP 4.1.0, Usort in the comparison of the value of the same, the original location may change, the document says: If The compare as equal, their order in the sorted array is undefined. That is, if the 2 values of the comparison are the same, their order in the sort results is random. If you need to maintain the original position of the same value, you can refer to the method in this article

7. Alwayscomebacktoyourlove PHP multidimensional Array sorting usort,uasort

Description: Alwayscomebacktoyourlove:alwayscomebacktoyourlove PHP multidimensional array usort,uasort: Numeric index array: bool Usort (array & $array, Callback $cmp _function) The Usort function sorts the specified array (parameter 1) by the specified method (parameter 2). When we want to sort multidimensional arrays, each element of a multidimensional array is an array type, and how do two arrays compare size? This needs to be customized by the user (by comparing the first element of each array or ...). Copy the code code as follows:

8. PHP Two-dimensional array sorting method (Array_multisort usort function)

Introduction: PHP Two-dimensional array sorting method (Array_multisort usort function)

9. PHP multidimensional array sorting (usort,uasort) _php Tutorial

Summary: PHP multidimensional array sorting (Usort,uasort). Numeric index array: bool Usort (array lt;?). PHP//define multidimensional Array $a = Array ("Sky", "Blue"), Array ("Apple", "red"), Array ("Tree", "green"); Custom array comparison functions,

Usort in PHP the solution to the problem of changing the original position in the same value _php tutorial

Summary: PHP usort The solution to change the original location problem at the same value. From PHP 4.1.0, the original position may change when the value of Usort is compared, as in the document: If the members compare as equal, their order in the sorted array is UN

"Related question and answer recommendation":

are Php-array_multisort and usort performance High or low?

How to sort two-dimensional arrays with Array_multisort Usort