Php 按字母顺序将多维数组排序为2列
我有一个像这样的数组Php 按字母顺序将多维数组排序为2列,php,arrays,sorting,yii,Php,Arrays,Sorting,Yii,我有一个像这样的数组 Array ( [0] => Array ( [make] => Alfa Romeo [id] => 2 ) [1] => Array ( [make] => Aston Martin [id] => 3 ) [2] => Array ( [make] => Audi [id] => 4 ) [3] => Array ( [make] => BMW [id
Array ( [0] => Array ( [make] => Alfa Romeo [id] => 2 )
[1] => Array ( [make] => Aston Martin [id] => 3 )
[2] => Array ( [make] => Audi [id] => 4 )
[3] => Array ( [make] => BMW [id] => 8 )
[4] => Array ( [make] => Caterham [id] => 9 )
)
Alfa Romeo BMW
Aston Martin Caterham
Audi
我想把它垂直地分成两列
看起来是这样的
Array ( [0] => Array ( [make] => Alfa Romeo [id] => 2 )
[1] => Array ( [make] => Aston Martin [id] => 3 )
[2] => Array ( [make] => Audi [id] => 4 )
[3] => Array ( [make] => BMW [id] => 8 )
[4] => Array ( [make] => Caterham [id] => 9 )
)
Alfa Romeo BMW
Aston Martin Caterham
Audi
现在,当Yii使用checkBoxList()
函数生成一个复选框时,看起来是这样的
Alfa Romeo Aston Martin
Audi BMW
Caterham
现在我要处理这个问题。但这只适用于一维数组
function array_chunk_vertical($data, $columns = 2) {
$n = count($data) ;
$per_column = floor($n / $columns) ;
$rest = $n % $columns ;
// The map
$per_columns = array( ) ;
for ( $i = 0 ; $i < $columns ; $i++ ) {
$per_columns[$i] = $per_column + ($i < $rest ? 1 : 0) ;
}
$tabular = array( ) ;
foreach ( $per_columns as $rows ) {
for ( $i = 0 ; $i < $rows ; $i++ ) {
$tabular[$i][ ] = array_shift($data) ;
}
}
return $tabular ;
}
函数数组\u块\u垂直($data,$columns=2){
$n=计数($data);
$per_column=楼层($n/$columns);
$rest=$n%$列;
//地图
$per_columns=array();
对于($i=0;$i<$columns;$i++){
$per_columns[$i]=$per_column+($i<$rest?1:0);
}
$tabular=array();
foreach($每列为$行){
对于($i=0;$i<$rows;$i++){
$tabular[$i][]=数组移位($data);
}
}
返回$tabular;
}
在这种情况下,您应该将数据添加到新的一维数组中
$a = array(0 => array( 'make' => 'Alfa Romeo', 'id' => 2 ),
1 => array( 'make' => 'Aston Martin', 'id' => 3 ),
2 => array( 'make' => 'Audi', 'id' => 4 ),
3 => array( 'make' => 'BMW', 'id' => 8 ),
4 => array( 'make' => 'Caterham', 'id' => 9 )
);
$b=array();
foreach ($a as $v)
{
$b[]=$v['make'];
}
sort($b);
print_r($b);
然后,您可以使用工作函数将新数组作为参数传递。尝试此操作,添加要在两列中显示的som条件
<?php $sort=Array (
0 => Array ( 'make' => 'Alfa Romeo' ,'id' => 2 ),
1 => Array ( 'make' => 'Aston Martin' ,'id' => 3 ) ,
2 => Array ( 'make' => 'Audi' ,'id' => 4 ),
3 => Array ( 'make' => 'Caterham' ,'id' => 8 ),
4 => Array ( 'make' => 'BMW' , 'id' => 9 )
);
print_r($sort);
sort($sort); echo ' <br/>';
print_r($sort);
?>
现有函数中没有任何东西可以阻止它在n维数组中使用。实际上,您在这里显示的函数,使用提供的输入
<?php
function array_chunk_vertical($data, $columns = 2) {
$n = count($data) ;
$per_column = floor($n / $columns) ;
$rest = $n % $columns ;
// The map
$per_columns = array( ) ;
for ( $i = 0 ; $i < $columns ; $i++ ) {
$per_columns[$i] = $per_column + ($i < $rest ? 1 : 0) ;
}
$tabular = array( ) ;
foreach ( $per_columns as $rows ) {
for ( $i = 0 ; $i < $rows ; $i++ ) {
$tabular[$i][ ] = array_shift($data) ;
}
}
return $tabular ;
}
$cars = [
[ 'make' => 'Alfa Romeo', 'id' => 2 ],
[ 'make' => 'Aston Martin', 'id' => 3 ],
[ 'make' => 'Audi', 'id' => 4 ],
[ 'make' => 'BMW', 'id' => 8 ],
[ 'make' => 'Caterham', 'id' => 9 ],
];
echo '<table>';
foreach(array_chunk_vertical($cars) as $row) {
echo '<tr>';
foreach($row as $car) {
echo '<td><input type="checkbox" value="', $car['id'], '" />', $car['make'], '</td>';
}
echo '</tr>';
}
echo '</table>';
您可以删除打印,因为我使用打印只是为了在打印前后显示结果。谢谢,睡眠不足。我没有注意到我的foreach(array\u chunk\u vertical($cars)as$row){}
做错了。我以为这是我的数组\u块\u垂直函数。谢谢