Restructured array-PHP restructured two-dimensional array

How can we recompose the original two-dimensional array in the following form? The format of the original array {code...} after the reorganization is: {code...} How to recombine the original two-dimensional array in the following form?

Original Array

Array ([0] => Array ([section 1-2] => [section 3-4] => Web site development and maintenance _ weekly _ XXXX_01-15 weeks _ S1-205 [Section 5-6] => Linux advanced applications _ weekly _ XXXX_01-15 weeks _ A-910 [Section 7-8] => network security _ every two weeks _ XXXX_01-15 weeks _ A-507 [Section 9-10] =>) [1] => Array ([section 1-2] => IPV6 technology _ weekly _ XXXX_01-14 weeks _ S1-303 [section 3-4] => [Section 5-6] => network security _ weekly _ XXXX_01-15 weeks _ C-408 [Section 7-8] => [Section 9-10] =>) [2] => Array ([section 1-2] => network marketing _ weekly _ XXXX_01-14 weeks _ C-201 [section 3-4] => [Section 5-6] => Employment Guidance _ weekly _ XXXX_11-12 weeks _ B-202 [Section 7-8] => [Section 9-10] =>) [3] => Array ([section 1-2] => Linux advanced applications _ every week _ XXXX_01-15 weeks _ A-910/Web site development and maintenance _ every week _ Zhang Jinbo _ weeks _ A-910 [section 3-4] => [Section 5-6] => Cisco advanced applications _ weekly _ XXXX_01-14 weeks _ S1-305 [Section 7-8] => Linux advanced applications _ weekly _ XXXX_01-15 weekly _ S1-303 [Section 9-10] =>) [4] => Array ([section 1-2] => network security _ weekly _ XXXX_01-15 weeks _ A-508 [section 3-4] => Web site development and maintenance _ weekly _ XXXX_01-15 weeks _ A-908 [Section 5-6] => [Section 7-8] => [Section 9-10] => ))

The format after reorganization is:

Array ([0] => Array ([section 1-2] => [section 1-2] => IPV6 technology _ weekly _ XXXX_01-14 weeks _ S1-303 [section 1-2] => Network marketing _ weekly _ XXXX_01-14 weeks _ C-201 [section 1-2] => Linux advanced applications _ every week _ XXXX_01-15 weeks _ A-910/Web site development and maintenance _ every two weeks _ XXXX_01-15 weeks _ A-910 [section 1-2] => cybersecurity _ weekly _ XXXX_01-15 _ A-508) [1] => Array ([section 3-4] => Web site development and maintenance _ weekly _ XXXX_01-15 weeks _ S1-205 [section 3-4] => [section 3-4] => [section 3-4] => [section 3-4] => Web site development and maintenance _ weekly _ XXXX_01-15 weeks _ A-908) [2] => Array ([Section 5-6] => Linux advanced applications _ weekly _ XXXX_01-15 weeks _ A-910 [Section 5-6] => network security _ weekly _ XXXX_01-15 weeks _ C-408 [section 5-6] => Employment Guidance _ weekly _ XXXX_11-12 weeks _ B-202 [Section 5-6] => Cisco advanced applications _ weekly _ XXXX_01-14 weeks _ S1-305 [Section 5-6] =>) [3] => Array ([Section 7-8] => cybersecurity _ every two weeks _ XXXX_01-15 weeks _ A-507 [Section 7-8] => [Section 7-8] => [Section 7-8 7-8 section] => Linux advanced applications _ weekly _ XXXX_01-15 weeks _ S1-303 [Section 7-8] =>) [4] => Array ([Section 9-10] => [Section 9-10] => [Section 9-10] => [Section 9-10] => [Section 9-10] => ))

Reply content:

How can we recompose the original two-dimensional array in the following form?

Original Array

Array ([0] => Array ([section 1-2] => [section 3-4] => Web site development and maintenance _ weekly _ XXXX_01-15 weeks _ S1-205 [Section 5-6] => Linux advanced applications _ weekly _ XXXX_01-15 weeks _ A-910 [Section 7-8] => network security _ every two weeks _ XXXX_01-15 weeks _ A-507 [Section 9-10] =>) [1] => Array ([section 1-2] => IPV6 technology _ weekly _ XXXX_01-14 weeks _ S1-303 [section 3-4] => [Section 5-6] => network security _ weekly _ XXXX_01-15 weeks _ C-408 [Section 7-8] => [Section 9-10] =>) [2] => Array ([section 1-2] => network marketing _ weekly _ XXXX_01-14 weeks _ C-201 [section 3-4] => [Section 5-6] => Employment Guidance _ weekly _ XXXX_11-12 weeks _ B-202 [Section 7-8] => [Section 9-10] =>) [3] => Array ([section 1-2] => Linux advanced applications _ every week _ XXXX_01-15 weeks _ A-910/Web site development and maintenance _ every week _ Zhang Jinbo _ weeks _ A-910 [section 3-4] => [Section 5-6] => Cisco advanced applications _ weekly _ XXXX_01-14 weeks _ S1-305 [Section 7-8] => Linux advanced applications _ weekly _ XXXX_01-15 weekly _ S1-303 [Section 9-10] =>) [4] => Array ([section 1-2] => network security _ weekly _ XXXX_01-15 weeks _ A-508 [section 3-4] => Web site development and maintenance _ weekly _ XXXX_01-15 weeks _ A-908 [Section 5-6] => [Section 7-8] => [Section 9-10] => ))

The format after reorganization is:

Array ([0] => Array ([section 1-2] => [section 1-2] => IPV6 technology _ weekly _ XXXX_01-14 weeks _ S1-303 [section 1-2] => Network marketing _ weekly _ XXXX_01-14 weeks _ C-201 [section 1-2] => Linux advanced applications _ every week _ XXXX_01-15 weeks _ A-910/Web site development and maintenance _ every two weeks _ XXXX_01-15 weeks _ A-910 [section 1-2] => cybersecurity _ weekly _ XXXX_01-15 _ A-508) [1] => Array ([section 3-4] => Web site development and maintenance _ weekly _ XXXX_01-15 weeks _ S1-205 [section 3-4] => [section 3-4] => [section 3-4] => [section 3-4] => Web site development and maintenance _ weekly _ XXXX_01-15 weeks _ A-908) [2] => Array ([Section 5-6] => Linux advanced applications _ weekly _ XXXX_01-15 weeks _ A-910 [Section 5-6] => network security _ weekly _ XXXX_01-15 weeks _ C-408 [section 5-6] => Employment Guidance _ weekly _ XXXX_11-12 weeks _ B-202 [Section 5-6] => Cisco advanced applications _ weekly _ XXXX_01-14 weeks _ S1-305 [Section 5-6] =>) [3] => Array ([Section 7-8] => cybersecurity _ every two weeks _ XXXX_01-15 weeks _ A-507 [Section 7-8] => [Section 7-8] => [Section 7-8 7-8 section] => Linux advanced applications _ weekly _ XXXX_01-15 weeks _ S1-303 [Section 7-8] =>) [4] => Array ([Section 9-10] => [Section 9-10] => [Section 9-10] => [Section 9-10] => [Section 9-10] => ))

[1] => Array ([section 3-4] => Web site development and maintenance _ weekly _ XXXX_01-15 weeks _ S1-205 [section 3-4] => [section 3-4] => [section 3-4] => [section 3-4] => Web site development and maintenance _ weekly _ XXXX_01-15 weeks _ A-908)

If this key is the same, the subsequent key will overwrite the previous one. You should expect this result:

[Section 1-2] => Array ([0] => [1] => IPV6 technology _ weekly _ XXXX_01-14 weeks _ S1-303 [2] => network marketing _ weekly _ XXXX_01-14 weeks _ C-201 [3] => Linux advanced applications _ every week _ XXXX_01-15 weeks _ A-910/Web site development and maintenance _ every two weeks _ XXXX_01-15 weeks _ A-910 [4] => network security _ weekly _ XXXX_01-15 weeks _ A-508) [section 3-4] => Array ([0] => Web site development and maintenance _ weekly _ XXXX_01-15 weeks _ S1-205 [1] => [2] => [3] => [4] => Web site development and maintenance _ weekly _ XXXX_01-15 _ A-908)

You can write a function:

    public function listData($arr){        if(empty($arr)) return array();        $listData = array();        foreach($arr as $key=>$value){            foreach($value as $k=>$v){                $listData[$k][] = $v;            }        }        return $listData;    }

Test Array

$arr  = array(    0=>array(        'a'=>1,        'b'=>2,        'c'=>3,    ),    1=>array(        'a'=>11,        'b'=>22,        'c'=>33,    ),    2=>array(        'a'=>111,        'b'=>222,        'c'=>333,    ),);

Get:

array  'a' =>     array      0 => int 1      1 => int 11      2 => int 111  'b' =>     array      0 => int 2      1 => int 22      2 => int 222  'c' =>     array      0 => int 3      1 => int 33      2 => int 333