将PHP变量拆分为数组？

I have this string:

ckb=199&ckb=232&ckb=200&ckb=233&ckb=201&ckb=234..

I need to create an array from it:

[0] => 199
[1] => 232
[2] => 200
[3] => 233
[4] => 201
[5] => 234

how can i do this with php?

A regex solution:

<?php 
    $str = "ckb=199&ckb=232&ckb=200&ckb=233&ckb=201&ckb=234";
    preg_match_all("/=([^&]+|.*$)/", $str, $matches); 
    print_r($matches[1]); 
?>

Output:

Array
(
    [0] => 199
    [1] => 232
    [2] => 200
    [3] => 233
    [4] => 201
    [5] => 234
)

You can use parse_str to parse a query string. however it expects php's style of array syntax( key[]=val ) so you will need to add the square brackets:

$str = 'ckb=199&ckb=232&ckb=200&ckb=233&ckb=201&ckb=234';
$str = str_replace('=','[]=',$str);
parse_str($str, $output);
$final = $output['ckb'];
var_dump($final);

The basic idea is the use explode() here: Example:

$string = 'ckb=199&ckb=232&ckb=200&ckb=233&ckb=201&ckb=234';
$pieces = array_map(function($piece){
    $sub_piece =  explode('=', $piece);
    return array_pop($sub_piece);
}, explode('&', $string));

echo '<pre>';
print_r($pieces);

Should output something like:

Array
(
    [0] => 199
    [1] => 232
    [2] => 200
    [3] => 233
    [4] => 201
    [5] => 234
)

Sidenote: Somewhat a URL from the looks of it. If you want to modify the string, alternatively, you could also use parse_str and make it an array instead.