An introduction to the method of two-dimensional array ordering and default natural ordering in PHP _php instance

PHP two-dimensional array sorting function, the default natural sort, or sort. Here you can specify a variety of methods to sort by a value in a two-dimensional array, depending on the program annotation below.

Copy Code code as follows:

/**

* @function natural ordering of two-dimensional arrays

* @author www.phpernote.com

* @param array $array arrays to be sorted (two-dimensional)

* @param string key needs to be sorted by which key

* @param string Ordering method (Sort_asc,sort_desc)

* @param String Type Sort method (sort_regular,sort_numeric,sort_string)

* @return Array sorted array.

*/

function Phpsortarray ($array, $key, $order = "Sort_asc", $type = "Sort_regular") {

if (!is_array ($array) | | Empty ($ $array)) {

return $array;

}

$ArgCount =func_num_args ()//returns the number of arguments passed to the currently defined function

for ($I =1; $I < $ArgCount; $I + +) {

$Arg =func_get_arg ($I);

if (!eregi ("SORT", $Arg)) {

$KeyNameList []= $Arg;

$SortRule []= ' $ '. $Arg;

}else{

$SortRule []= $Arg;

}

}

foreach ($array as $Key => $Info) {

foreach ($KeyNameList as $KeyName) {

${$KeyName}[$Key]= $Info [$KeyName];

}

}

$EvalString = ' Array_multisort ('. Join (",", $SortRule). ', $array); ';

eval ($EvalString);

return $array;

}