10 recommended articles about php usort()

Sort the array: usort() function uses a user-defined function to sort the array. The example code is as follows: function cmp($a, $b) //User-defined callback function { if($a==$b )                                                                                                                                                                                   

# Introduction: Sort array: usort() function uses user-defined function to sort array, example code As follows: function cmp($a, $b)        //User-defined callback function {   if($a ==$b)   &

2. php two-dimensional array sorting method (array_multisort usort)

Introduction: One-dimensional array sorting can be done using some methods such as asort and ksort. How to achieve sorting of two-dimensional arrays is relatively simple. ? Use array_multisort and usort to achieve

3. Detailed explanation of two-dimensional array sorting problem in php

#Introduction: One-dimensional array sorting can be done using some methods such as asort and ksort, which are relatively simple. How to achieve sorting of two-dimensional arrays using array_multisort and usort? Implementation, follow the editor to learn the detailed explanation of the two-dimensional array sorting problem in php

4.

php two-dimensional array sorting method (array_multisort usort)

##Introduction: One-dimensional array sorting can be done using some methods such as asort and ksort. Two-dimensional arrays are relatively simple. How to achieve sorting? Using array_multisort and usort can achieve

##5. PHP array sorting usort uksort sort function

Introduction: PHP array sorting usort uksort sort function

6. universal androot usort in PHP is based on the value Solution to the problem of changing the original position at the same time

Introduction: universal androot: universal androot Solution to the problem of usort changing the original position when the values ​​​​are the same in PHP: from PHP 4.1.0 Finally, usort may change its original position when the compared values ​​are the same. The documentation says this: If two members compare as equal, their order in the sorted array is undefined. That is, if the two compared values ​​are the same , their order in the sorted results is random. If you need to keep the original position of the same value, you can refer to the method in this article

7. alwayscomebacktoyourlove PHP multidimensional array sort usort,uasort

Introduction: alwayscomebacktoyourlove:alwayscomebacktoyourlove PHP multi-dimensional array sorting usort, uasort: numeric index array: bool usort(array &$array, callback $cmp_function) The usort function sorts the specified array (parameter 1) in the specified way (parameter 2) Sort. When we want to sort a multi-dimensional array, each element of the multi-dimensional array is an array type, and how do we compare the sizes of the two arrays? This needs to be customized by the user (whether to compare based on the first element of each array or...). Copy the code The code is 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

##Introduction: PHP Multidimensional Array Sorting ( usort,uasort). Numeric index array: bool usort( array lt;?php //Define multidimensional array $a = array( array("sky", "blue"), array("apple", "red"), array("tree", "green")); //Customized array comparison function,

10. Solution to the problem of usort changing the original position when the values ​​​​are the same in PHP_PHP Tutorial

Introduction: Solution to the problem of usort changing the original position when the values ​​are the same in PHP. From PHP 4.1.0, the original position of usort may change when the compared values ​​are the same. , the document says this: If two members compare as equal, their order in the sorted array is un

[Related Q&A recommendations]:

php - Are there any performance differences between array_multisort and usort?

How to use array_multisort usort to sort two-dimensional arrays

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