拆分阵列的序列号


Split serial number of an array

我有以下数字数组($data),我想将其拆分为两个数组(range1和2)。

正如你所看到的,我只是不会前进。有人可以给我一个提示,我该如何解决这个问题?

$data = array( 16,17,18,19,20,23,24,25,26 );
$range1 = array();
$range2 = array();
$firstday = reset( $data );
$lastday = end( $data );
for($x = $firstday;$x <= $lastday; $x++ ){
    if( $firstday == $x ){
        $range1 =.$x;    
    }
    elseif( $x - $firstday == 1){
        $range2 =.$x;
    }
}
Output must be array(16,17,18,19,20); array(23,24,25,26);
    $data = array( 16,17,18,19,20,23,24,25,26);
    $output1 = array_slice($data, 0, 5); 
    $output2 = array_slice($data, 5, 4); 

@Jenson M John使用的方式相同,

获取数组的一半

$count = count($data);
$output1 = array_slice($data, 0, ceil($count/2)); 
$output2 = array_slice($data, ceil($count/2), $count-(ceil($count/2)));