解析数组的自定义格式

Question

我试图将自定义格式的.txt文件转换为数组。

这里是第一线的样本：

[LINETYPE]S [STARTTIME]00:00:00 
[LINETYPE]M [TITLE]There For You [PERFORMER]Martin Garrix & Troye Sivan [MUSICID]21120 [LABEL]  
[LINETYPE]M [TITLE]Shut Up and Dance [PERFORMER]Walk The Moon [MUSICID]20634 [LABEL] 

继续这样跌下去，用一个新的[LINETYPE] S为一天的每一个小时。

现在，我想达到的目标，是让每一个小时的阵列 - 包含另一个数组与支架作为键的每个值：

array("00:00:00" => array(

      array("LINETYPE" => "M", 
      "TITLE" => "There For You", 
      "PERFORMER" => "Martin Garrix & Troye Sivan", 
      "MUSICID" => "21120", 
      "LABEL" => ""), 

      array("LINETYPE" => "M", 
      "TITLE" => "Shut Up And Dance", 
      "PERFORMER" => "Walk The Moon", 
      "MUSICID" => "20634", 
      "LABEL" => "") 
    ), "01:00:00" => array(
    [...] 
); 

的正则表达式来搜索每个小时应该是正确的，但似乎preg_split不支持多个捕获组。

到目前为止，我发现的所有答案都在一个更基本的层面上，如爆炸逗号。

这是我的代码到目前为止。

$test = get_musiclog("06082017"); 

$hours = array(); 

$regex = "(\[LINETYPE\]S\t\[STARTTIME\])((?:(?:[0-2][0-9])|(?:[2][0-3])|(?:[0-9])):(?:[0-5][0-9])(?::[0-5][0-9])?(?:\\s?)?)\n"; 

if (preg_match_all ("/".$regex."/is", $test, $matches)) { 
    foreach($matches[2] as $hour) { 
     $hours[$hour] = ""; // Music array 
    } 
} 

几乎没有任何头发留在头脑里想着这些问题。任何人都可以将我指向正确的方向吗？

• 我如何拆分字符串 “[LINETYPE] S [STARTTIME] XX：XX：XX” 和保持时间的关键？
• 如何知道结构是[键]值\ t而\ n是分隔符的其余元素？
• “数组内的数组”是否正确？

Answer 1

我的方法主要使用否定字符类来捕获标记之间的值。为了保持正则表达式相对较轻，可以使用可选的捕获组，以便像LINETYPE S这样的短线仍匹配。

代码：（Pattern Demo）（PHP Demo）

$input='[LINETYPE]S [STARTTIME]00:00:00 
[LINETYPE]M [TITLE]There For You [PERFORMER]Martin Garrix & Troye Sivan [MUSICID]21120 [LABEL]  
[LINETYPE]M [TITLE]Shut Up and Dance [PERFORMER]Walk The Moon [MUSICID]20634 [LABEL] 
[LINETYPE]M [TITLE]Subeme La Radio [PERFORMER]Enrique Iglesias [MUSICID]21105 [LABEL]  
[LINETYPE]C [TITLE]AUTO S2 NON STOP [PERFORMER] [MUSICID]A2-6 [LABEL]  
[LINETYPE]M [TITLE]Uptown Funk [PERFORMER]Mark Ronson & Bruno Mars [MUSICID]20533 [LABEL]  
[LINETYPE]M [TITLE]Let It Go [PERFORMER]James Bay [MUSICID]20839 [LABEL]  
[LINETYPE]S [STARTTIME]01:00:00 
[LINETYPE]M [TITLE]There For You [PERFORMER]Martin Garrix & Troye Sivan [MUSICID]21120 [LABEL]  
[LINETYPE]M [TITLE]Shut Up and Dance [PERFORMER]Walk The Moon [MUSICID]20634 [LABEL]  '; 
$pattern='/\[LINETYPE\]([A-Z])\s\[(?:TITLE|STARTTIME)\]([^[\s]*(?: [^[\s]+)*)(?:\s*\[PERFORMER\]([^[ ]*(?: [^[ ]+)*)\s+\[MUSICID\]([^[ ]+)\s+\[LABEL\](\S*(?: \S+)*))?/'; 
if(!preg_match_all($pattern,$input,$out, PREG_SET_ORDER)){ 
    echo 'something went wrong'; 
}else{ 
    foreach($out as $a){ 
     if($a[1]=='S'){ 
      $time=$a[2]; 
     }else{ 
      $result[$time][]=["LINETYPE"=>$a[1],"TITLE"=>$a[2],"PERFORMER"=>$a[3],"MUSICID"=>$a[4],"LABEL"=>$a[5]]; 
     } 
    } 
} 
var_export($result); 

输出：

array (
    '00:00:00' => 
    array (
    0 => 
    array (
     'LINETYPE' => 'M', 
     'TITLE' => 'There For You', 
     'PERFORMER' => 'Martin Garrix & Troye Sivan', 
     'MUSICID' => '21120', 
     'LABEL' => '', 
    ), 
    1 => 
    array (
     'LINETYPE' => 'M', 
     'TITLE' => 'Shut Up and Dance', 
     'PERFORMER' => 'Walk The Moon', 
     'MUSICID' => '20634', 
     'LABEL' => '', 
    ), 
    2 => 
    array (
     'LINETYPE' => 'M', 
     'TITLE' => 'Subeme La Radio', 
     'PERFORMER' => 'Enrique Iglesias', 
     'MUSICID' => '21105', 
     'LABEL' => '', 
    ), 
    3 => 
    array (
     'LINETYPE' => 'C', 
     'TITLE' => 'AUTO S2 NON STOP', 
     'PERFORMER' => '', 
     'MUSICID' => 'A2-6', 
     'LABEL' => '', 
    ), 
    4 => 
    array (
     'LINETYPE' => 'M', 
     'TITLE' => 'Uptown Funk', 
     'PERFORMER' => 'Mark Ronson & Bruno Mars', 
     'MUSICID' => '20533', 
     'LABEL' => '', 
    ), 
    5 => 
    array (
     'LINETYPE' => 'M', 
     'TITLE' => 'Let It Go', 
     'PERFORMER' => 'James Bay', 
     'MUSICID' => '20839', 
     'LABEL' => '', 
    ), 
), 
    '01:00:00' => 
    array (
    0 => 
    array (
     'LINETYPE' => 'M', 
     'TITLE' => 'There For You', 
     'PERFORMER' => 'Martin Garrix & Troye Sivan', 
     'MUSICID' => '21120', 
     'LABEL' => '', 
    ), 
    1 => 
    array (
     'LINETYPE' => 'M', 
     'TITLE' => 'Shut Up and Dance', 
     'PERFORMER' => 'Walk The Moon', 
     'MUSICID' => '20634', 
     'LABEL' => '', 
    ), 
), 
)