Question

如果您有这些数据：

1=Books
1.1=Action & Adventure
1.2=Arts, Film & Photography
1.2.1=Architecture
1.2.2=Cinema & Broadcast
1.2.3=Dance

数据上的数字是索引。你怎么能把它放在关联数组中？我想知道一个带有该数据的关联数组的例子。感谢

Answer 1

可以使用explode()和foreach

完成

<强>步骤：

1）首先使用换行符\n爆炸字符串。

2）翻看它。

3）你将得到单独的行，用=爆炸（）它。

4）您将获得0中的必填项和1中的值。

5）将其作为键值对存储在数组中。的完成

$str = '1=Books
1.1=Action & Adventure
1.2=Arts, Film & Photography
1.2.1=Architecture
1.2.2=Cinema & Broadcast
1.2.3=Dance';
$arr = explode("\n", $str);
$assoc = array();
if (! empty($arr)) {
 foreach ($arr as $k => $v) {
  $temp = explode('=', $v);
  $assoc[$temp[0]] = $temp[1];
 }
}
echo '<pre>';print_r($assoc);echo '</pre>';

<强>输出：

Array
(
 [1] => Books
 [1.1] => Action & Adventure
 [1.2] => Arts, Film & Photography
 [1.2.1] => Architecture
 [1.2.2] => Cinema & Broadcast
 [1.2.3] => Dance
)

Answer 2

可以通过将字符串转换为query string格式然后使用parse_str()来完成必须插入1.0 =＆gt;书籍（append.0）和1.2.0 =＆gt;艺术，电影和摄影（追加.0）



 $str = '1.0=Books
    1.1=Action & Adventure
    1.2.0=Arts, Film & Photography
    1.2.1=Architecture
    1.2.2=Cinema & Broadcast
    1.2.3=Dance';<br />
    //replace & with and because parse_str not work with '&'
    $str = str_replace('&','and',$str);
    $str_ar = explode("\n",$str);
    foreach($str_ar as $line){
        $aar .= 'a';
        $line_ar = explode('=',$line);
        $array_index = explode('.',$line_ar[0]);
        foreach($array_index as $index){
            $aar .= '['.$index.']'; 
        }
        $aar.='='.($line_ar[1]).'&';
    }
    $aar = rtrim($aar,'&');
    parse_str($aar,$o);
    $o=array_shift($o);

$str = '1.0=Books 1.1=Action & Adventure 1.2.0=Arts, Film & Photography 1.2.1=Architecture 1.2.2=Cinema & Broadcast 1.2.3=Dance';<br /> //replace & with and because parse_str not work with '&' $str = str_replace('&','and',$str); $str_ar = explode("\n",$str); foreach($str_ar as $line){ $aar .= 'a'; $line_ar = explode('=',$line); $array_index = explode('.',$line_ar[0]); foreach($array_index as $index){ $aar .= '['.$index.']'; } $aar.='='.($line_ar[1]).'&'; } $aar = rtrim($aar,'&'); parse_str($aar,$o); $o=array_shift($o);

<强>输出

Array
(
    [1] => Array
        (
            [0] => Books
            [1] => Action and Adventure
            [2] => Array
                (
                    [0] => Arts, Film and Photography
                    [1] => Architecture
                    [2] => Cinema and Broadcast
                    [3] => Dance
                )

        )

)

转换为关联数组PHP

2 个答案: