Recommended 10 articles about php uasort() function

This article collects 10 articles about php and the php uasort() function. Welcome to collect

1. arraylist namespace php array sorting array_multisort and The difference between uasort

Introduction: arraylist namespace: arraylist namespace php The difference between array sorting array_multisort and uasort: Example: (concise) uasort($arr,create_function('$ a, $b','return $a['line_num']<$b['line_num'];')); *************Function definition and syntax**** ********* array_multisort (PHP4 >= 4.0b4) array_multisort --- Sort

2. alwayscomebacktoyourlove PHP multidimensional array sorting usort,uasort

Introduction: alwayscomebacktoyourlove:alwayscomebacktoyourlove PHP multidimensional array sorting usort, uasort: numeric index array: bool usort(array &$array, callback $cmp_function) The usort function sorts the specified array (parameter 1 ) is sorted according to the specified method (parameter 2). 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 as follows:

3. The difference between php array sorting function array_multisort and uasort

Introduction: php array The difference between the sorting function array_multisort and uasort

4. 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,

5. php The difference between array_multisort and uasort_PHP tutorial

Introduction: The difference between PHP array sorting array_multisort and uasort. Example: (concise) uasort($arr,create_function('$a, $b','return $a['line_num']$b[ 'line_num'];')); *************Function definition and syntax****************** array_multisort (PHP4 = 4.0b4) ar

6. PHP multi-dimensional array sorting maintains index correspondence. Clever use of uasort_PHP tutorial

Introduction: PHP multi-dimensional array sorting maintains index correspondence The relationship is clever using uasort. In actual development, you will more or less encounter array sorting problems. In addition to conventional simple sorting algorithms, PHP also provides built-in array sorting functions. This time I will focus on sharing: uas

7. Two-dimensional array sorting problem in PHP_PHP tutorial

## Introduction: Two-dimensional array sorting problem in PHP II. Dimensional array sorting problem To sort two-dimensional arrays in PHP, you can use PHP's built-in function uasort() [Use user-defined comparison functions to sort values ​​in the array and maintain index association

8. Detailed explanation of two-dimensional array sorting problem in php, two-dimensional array sorting_PHP tutorial

Introduction: Detailed explanation of two-dimensional array sorting problem in php, 2 Dimensional array sorting. Detailed explanation of the problem of two-dimensional array sorting in PHP. Two-dimensional array sorting. To sort two-dimensional arrays in PHP, you can use the PHP built-in function uasort(). Example 1: Use user-defined comparison function logarithm

9. php array sort array

Introduction: In fact, simply speaking, the most important difference between the two is: array_multisort() sorting After that, the original array "keys" are lost. After sorting by uasort(), the original "keys" are retained.

##10.

Problems related to two-dimensional array sorting in PHP

Introduction: Two-dimensional array sorting problem in PHP. To sort two-dimensional arrays in PHP, you can use the PHP built-in function uasort() [Use user-defined comparison function to sort the values ​​in the array and maintain index association] The callback function is as follows: Note that when the return value of the callback function is negative or false, it means that the first parameter of the callback function comes first and the second parameter is arranged last $person = array( array('num&

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