PHP使preg_split定界符模式，分裂人品鏈

Question

用下面的字符串：

$str = '["one","two"],a,["three","four"],a,,a,["five","six"]'; 

preg_split(delimiter pattern, $str); 

我會如何來建立定界符模式獲得這樣的結果：

$arr[0] = '["one","two"]'; 
$arr[1] = '["three","four"]'; 
$arr[2] = '["five","six"]'; 

在其他字，有沒有辦法在模式'拆分'，a，'AND'，a，a，'但是檢查'，a ,, a，'首先是因爲'，a，'是子字符串'，一,,一，'？

在此先感謝！

Answer 1

如果它只能是,a,和,a,,a,，那麼這應該足夠：

preg_split("/(,a,)+/", $str); 

Answer 2

如果只想括號中的內容，我認爲你應該使用的preg_match，而不是使preg_split

1. Extract whatever is in brackets using regular expressions
2. php preg_split() to find text inbetween two words

Answer 3

看看這個代碼：

$result = array(); 

preg_match_all("/(\[[^\]]*\])/", '["one","two"],a,["three","four"],a,,a,["five","six"]', $result); 

echo '<pre>' . print_r($result, true); 

它會返回：

Array 
(
    [0] => Array 
     (
      [0] => ["one","two"] 
      [1] => ["three","four"] 
      [2] => ["five","six"] 
     ) 

    [1] => Array 
     (
      [0] => ["one","two"] 
      [1] => ["three","four"] 
      [2] => ["five","six"] 
     ) 
) 

Answer 4

它看起來像你實際試圖做的是分開方括號內的部分。你能做到這一點，像這樣：

$arr = preg_split("/(?<=\])[^[]*(?=\[)/",$str);