如何分組/拆分陣列結果在PHPň

Question

這裏是我的print_t（$陣列）

[0] => 1/000000.png 
[1] => 1/0000FF.png 
[2] => 1/66CC00.png 
[3] => 1/CC66FF.png 
[4] => 1/FF0000.png 
[5] => 1/FF9900.png 
[6] => 1/FFFFFF.png 
[7] => 2/000000.png 
[8] => 2/0000FF.png 
[9] => 2/66CC00.png 
[10] => 2/CC66FF.png 
[11] => 2/FF0000.png 
[12] => 2/FF9900.png 
[13] => 2/FFFFFF.png 
[14] => 3/000000.png 
[15] => 3/0000FF.png 
[16] => 3/66CC00.png 
[17] => 3/CC66FF.png 
[18] => 3/FF0000.png 
[19] => 3/FF9900.png 
[20] => 3/FFFFFF.png 

的結果，我需要組陣列以獲得樣的結果：

arr[0] = "000000.png, 000000FF.png, 66CC00.png, CC66FF.png, FF0000.png, FF9900.png, FFFFFF.png" 
arr[1] = "000000.png, 000000FF.png, 66CC00.png, CC66FF.png, FF0000.png, FF9900.png, FFFFFF.png" 
arr[2] = "000000.png, 000000FF.png, 66CC00.png, CC66FF.png, FF0000.png, FF9900.png, FFFFFF.png" 
arr[3] = "000000.png, 000000FF.png, 66CC00.png, CC66FF.png, FF0000.png, FF9900.png, FFFFFF.png" 

問候

Answer 1

因爲你需要一個字符串

foreach ($array as $value) { 
    $result[dirname($value)] .= empty($result[dirname($value)]) ? basename($value) : ', ' . basename($value); 
} 

Answer 2

試試這個！

$array = ["1/000000.png", "1/0000FF.png", "1/66CC00.png", "2/000000.png", "2/0000FF.png", "2/66CC00.png", "3/000000.png", "3/0000FF.png", "3/66CC00.png"]; 

//Get the first group of array 
for($i=0; $i<count($array); $i++){ 
    if(!$i){ 
     $new_array[] = substr($array[$i], 2); 
     $firstChar = $array[$i][0]; 
    }else{ 
     if($firstChar == $array[$i][0]){ 
      $new_array[] = substr($array[$i], 2); 
     }else{ 
      break;   
     }  
    } 
} 

//Array string 
$array_string = implode(",", $new_array); 

//Calculate the new length of array 
$final_array_length = count($array)/$i; 

//Prepare final array 
$final_array = []; 
for($j=0; $j<$final_array_length; $j++){ 
    $final_array[] = $array_string; 
} 

print_r($final_array);