PHP two-dimensional array sorted by specified key value

PHP two-dimensional array sorted by specified key value_PHP tutorial

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Release： 2016-07-13 17:00:27

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We have talked about various PHP array sorting methods before. At the same time, PHP also provides a large number of data sorting functions, such as sort(), asort(), arsort(), etc. Let me introduce two-dimensional arrays to you. Method to sort by specified key value.

Specific examples

return $keysvalue; }

The code is as follows

代码如下

复制代码

/*二维数组按指定的键值排序*/
function array_sort($array,$keys,$type='asc'){
if(!isset($array) || !is_array($array) || empty($array)){
  return '';
}
if(!isset($keys) || trim($keys)==''){
  return '';
}
if(!isset($type) || $type=='' || !in_array(strtolower($type),array('asc','desc'))){
  return '';
}
$keysvalue=array();
foreach($array as $key=>$val){
  $val[$keys] = str_replace('-','',$val[$keys]);
  $val[$keys] = str_replace(' ','',$val[$keys]);
  $val[$keys] = str_replace(':','',$val[$keys]);
  $keysvalue[] =$val[$keys];
}
asort($keysvalue); //key值排序
reset($keysvalue); //指针重新指向数组第一个
foreach($keysvalue as $key=>$vals) {
  $keysort[] = $key;
}
$keysvalue = array();
$count=count($keysort);
if(strtolower($type) != 'asc'){
  for($i=$count-1; $i>=0; $i--) {
   $keysvalue[] = $array[$keysort[$i]];
  }
}else{
  for($i=0; $i<$count; $i++){
$keysvalue[] = $array[$keysort[$i]];
}
}
return $keysvalue;
}

Copy code

/*The two-dimensional array is sorted by the specified key value*/

function array_sort($array,$keys,$type='asc'){

代码如下	复制代码
$a=array( 1=>array( id=>1, price=>'79', ), 2=>array( id=>1, price=>'68', ), );

if(!isset($array) || !is_array($array) || empty($array)){

return '';

}

代码如下	复制代码
array_sort($a,'price');

if(!isset($keys) || trim($keys)==''){

return ''; } if(!isset($type) || $type=='' || !in_array(strtolower($type),array('asc','desc'))){

return '';

}
$keysvalue=array();
foreach($array as $key=>$val){
$val[$keys] = str_replace('-','',$val[$keys]);

$val[$keys] = str_replace(' ','',$val[$keys]);

$val[$keys] = str_replace(':','',$val[$keys]);
$keysvalue[] =$val[$keys];
}

asort($keysvalue); //key value sorting

reset($keysvalue); //Redirect the pointer to the first
in the array foreach($keysvalue as $key=>$vals) {
$keysort[] = $key;

}

$keysvalue = array();
$count=count($keysort);
if(strtolower($type) != 'asc'){
for($i=$count-1; $i>=0; $i--) {

$keysvalue[] = $array[$keysort[$i]];

}
}else{
for($i=0; $i<$count; $i++){
$keysvalue[] = $array[$keysort[$i]];
}

}

How to use: For example: Just use:

The code is as follows

Copy code

array_sort($a,'price'); php array sort function sort ( &$arr [,fruits] ) Sort the array from low to high and assign a new key name. Return bool bKjia.c0m rsort ( &$arr [,fruits] ) Reverse sort the array and assign new key names asort ( &$arr [,fruits] ) sorts the array, keeping the index unchanged arsort( &$arr [,fruits] ) sorts the array in reverse order and keeps the index unchanged ksort ( &$arr [,fruits] ) sorts the array by key name krsort( &$arr [,fruits] ) sorts the group numbers in reverse order by key name natsort( &$arr ) Performs ‘natural sorting’ on array key values, sorting by length, alphabet, etc. natcasesort( &$arr ) performs case-insensitive ‘natural ranking’ of arrays usort ( &$arr , cmp_function ) User-defined function sorts an array and rearranges key names uksort (&$arr, cmp_function) User-defined function sorts an array by key name uasort (&$arr, cmp_function) user-defined function sorts the array and keeps the index unchanged array_multisort( $arr , mixed) The second parameter is to change the sorting behavior based on the value SORT_REGULAR Normal comparison unit SORT_NUMERIC www.bKjia.c0m The unit is compared as a number SORT_STRING The unit is compared as a string SROT_LOCALE_STRING The unit is compared as a string according to the current local settings