sort array by column php

1. The concept of arrays An array is a named range that is used to store a series of variable values. Each array element has an associated index (also a keyword) that can be used to access elements. PHP allows you to use numbers or strings evenly

The example in this article tells you how PHP implements a two-dimensional array to sort by a column. Share to everyone for your reference, specific as follows: * * The two-dimensional array is sorted by a column * Array_multisort ($arr 1,

Basic functions of array manipulationThe key name and value of the arrayArray_values ($arr); Get the value of an arrayArray_keys ($arr); Gets the key name of the arrayArray_flip ($arr); the values in the array are exchanged with the key names (if

first, see the simplest situation. There are two arrays:$arr 1 = Array (1, 9, 5);$arr 2 = Array (6, 2, 4);Array_multisort ($arr 1, $arr 2);Print_r ($arr 1); The order to get is 1,5,9Print_r ($arr 2); The order to get is 6,4,2I estimate that the

Often, developers find it useful to use this data structure in PHP to sort values or array elements. PHP provides a number of sorting functions that are suitable for multiple arrays, which allow you to arrange elements within an array, and also

Copy Code code as follows: function Array_sort ($array, $key) { if (Is_array ($array)) { $key _array = null; $new _array = null; for ($i = 0; $i $key _array[$array [$i] [$key]] = $i; } Ksort ($key _array); $j = 0; foreach

PHP uses array_multisort to sort multiple arrays or multi-dimensional arrays, and php multi-dimensional arrays. PHP uses array_multisort to sort multiple arrays or multi-dimensional arrays. in php, array_multisort can be used to sort multiple arrays

Array_multisort () This function can sort multiple php arrays , with the result that all arrays are sorted in the order of the first arrayFor example Array_multisort ($a, $b), $a, $b is two arrays, and if after sorting, the 3rd element of the $a

PHP uses Array_multisort to sort multiple arrays or multidimensional arrays, and the PHP multidimensional array is sorted PHP Array_multisort can be used to sort multiple arrays at once, or to sort multidimensional arrays based on one dimension or

A detailed explanation of the two-dimensional array sorting problem in php, two-dimensional array sorting. For details about the two-dimensional array sorting problem in php, two-dimensional array sorting in PHP, you can use the PHP built-in