php two dimensional array

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PHP provides the Array_unique function to remove duplicates in a one-dimensional array, but in our actual project development, the array from the database select is often two-dimensional; There may be duplicates here, which requires us to define

Ext.: https://my.oschina.net/surjur/blog/475927One-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

/*** @param array $list The result set to convert* @param string $pid the parent tag field* @param string $level level Tag field*/function List_to_tree ($list, $PK = ' id ', $pid = ' pid ', $child = ' Listarea ', $root = 0) {Create Tree$tree = Array

For a 2-dimensional array or multi-dimensional array sorting is a common problem, in PHP we have a special multi-dimensional array sorting function, the following simple introduction:Array_multisort (array1,sorting order, sorting type,array2,array3.

1 while(List($key,$value) = each($arr))2 {3 while(List($k,$v) = each($value))4 {5 Echo $key." ==> ".$k." ===> ".$v." ";6 }7}1 $msg=Array(2 　　 Array(3' id ' = ' 45s ',4' Name ' = ' Jacks '5),6 　　 Array(7' id ' = ' 3s4 ',8' Name ' = ' MASRY '

As the title, if the data from the database when the big can SELECT SUM (T_value), t_id from T_table GROUP by t_id But if you're dealing with a similar problem in a PHP program, it's a bit of a hassle, and here's a function to deal with a similar

For example, an array like the following: The code is as follows: $users = Array ( ' name ' => ' Tom ', ' Age ' =>) , Array (' name ' => ' Anny ', ' age ' =>) , array (' name ' => ' Jack ', ' age ' =>) ; Want to be able to sort by age

Sorting 2-D arrays or multidimensional arrays is a common problem, in PHP we have a special multidimensional array sorting function, the following briefly: Array_multisort (array1,sorting order, sorting type,array2,array3. is a function that sorts

Custom sort for two-dimensional arrays function Array_sort ($arr, $keys, $type) { $keysvalue =array (); $i = 0; foreach ($arr as $key => $val) { $val [$keys] = Str_replace ("-", "", $val [$keys]); $val [$keys] = Str_replace ("", "", $val

Filters PHP two-dimensional arrays and three-dimensional arrays, and filters php two-dimensional arrays. PHP two-dimensional array and three-dimensional array filtering, php two-dimensional array is not much nonsense, directly paste code for

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 = = $b)//If two parameters are equal {return 0;//return 0} return ($

Php array sorting method (script School Dedication) This article introduces the commonly used array sorting methods in php, including the usage of php array sorting functions, and the sorting methods of one-dimension arrays, two-dimensional

The Array_multisort () function in PHP can be used to sort multiple arrays at once, or to sort multidimensional arrays based on one dimension or multidimensional. This article explains how to use the Array_multisort function. The Array_multisort ()

PHP gets a collection of values for a column in a two-dimensional array, PHP is still more commonly used, so I studied php two-dimensional array. In the process of working with PHP arrays, there is a particular need for frequent, two-dimensional

Php provides a simple example of sorting two-dimensional arrays. This article describes how to use the array_multisort function in php to sort two-dimensional arrays. For more information, see. Following the previous article: PHP two-dimensional

The Array_multisort () function in PHP can be used to sort multiple arrays at once, or to sort multidimensional arrays based on one dimension or multidimensional. This article explains how to use the Array_multisort function. The Array_multisort ()

7 basic php sorting methods and 7 php sorting methods This article summarizes seven common sorting methods, which are implemented in php. 1. Insert directly to sort /** Insert sorting directly. The principle of insert sorting is: the elements before

This article introduces the use of the Array_multisort function in PHP for two-dimensional array ordering examples, there is a need for friends, refer to the bar. Following an article: Php two-dimensional array sorting custom function, today, we

The reverse of the PHP array in an article, "How to sort php arrays," we introduced the sort, asort, and Ksort, which are sorted in ascending order of the array, so if you want to implement the reverse of the arrays? Here's another set of functions