将字符串拆分为数组并将定界符设置为键 [英] Split a string into an array and set the delimiter as the key

问题描述

我有这样的数据字符串。

I have a string of data as such.

$str = "abc/text text def/long amount of text ghi/some text"

我有一组定界符

$arr = array('abc/', 'def/', 'ghi/', 'jkl/');

我该怎么做才能获得此输出？

What can I do to get this output?

Array
(
   [abc/] => text text
   [def/] => long amount of text
   [ghi/] => some text
)

还要注意$ arr可能并不总是出现在$ str中。在使用下面@rohitcopyright中的代码后，我只是注意到这是一个问题。

Also note that all the values in $arr may not always appear in $str. I just noticed this to be a problem after using the code from @rohitcopyright below.

推荐答案

您可以使用 preg_split 代替

$text = "abc/text text def/long amount of text ghi/some text";
$output = preg_split( "/(abc\/|def\/|ghi)/", $text);
var_dump($output);

输出：

array(4) {
    [0]=>
    string(0) ""
    [1]=>
    string(10) "text text "
    [2]=>
    string(20) "long amount of text "
    [3]=>
    string(10) "/some text"
}

更新：（删除空项目并重新索引）

Update: (remove empty item and re-index)

$output = array_values(array_filter(preg_split( "/(abc\/|def\/|ghi)/", $text)));
var_dump($output);

输出：

array(3) {
    [0]=>
    string(10) "text text "
    [1]=>
    string(20) "long amount of text "
    [2]=>
    string(10) "/some text"
}

演示。

更新：（2013年9月26日）

$str = "abc/text text def/long amount of text ghi/some text";
$array = preg_split( "/([a-z]{3}\/)/", $str, null, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);
$odd = $even = array();
foreach($array as $k => $v)
{
    if ($k % 2 == 0) $odd[] = $v;
    else $even[] = $v;
}
$output = array_combine($odd, $even);

print_r($output);

输出：

Array (
    [abc/] => text text 
    [def/] => long amount of text 
    [ghi/] => some text 
)

演示。

更新：（9月26日，2013）

您也可以尝试这样做（仅更改以下行才能获得您在评论中提到的结果）

You may try this as well (only change following line to achieve the result that you mentioned in comment)

$array = preg_split( "/([a-zA-Z]{1,4}\/)/", $str, null, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);

演示。

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