通过多个定界符将字符串分解为多维数组php [英] Explode string by multiple delimiters into multi-dimensional array php

问题描述

有人可以帮我递归这个爆炸函数吗?我今天不工作.

Can someone please give me a hand making this explode function recursive? My head is not working today.

function expl($str,$charlist='|'){
    $charlist = str_split($charlist);
    foreach($charlist as $char){
        if(is_array($str)){
            for($i=0; $i<sizeof($str); $i++){
                $str[$i] = expl($str[$i],$char);
            }
        }else{
            return (explode($char,trim($str,$char)));
        }
    }
    return($str);
}
echo "<pre>";
print_r(expl("A~a1~a2|B~b1~b2",'|~'));
echo "</pre>";

应输出:

Array
(
[0] => Array
    (
        [0] => A
        [1] => a1
        [2] => a2
    )
[0] => Array
    (
        [0] => B
        [1] => b1
        [2] => b2
    )
)

推荐答案

<?php
function expl($str,$charlist='|'){
if(!$charlist) return($str);
$char = $charlist[0];
$matrix = explode($char,$str);
for($i=0; $i<sizeof($matrix); $i++){
    $matrix[$i] = expl($matrix[$i],substr($charlist,1));
}
return($matrix);
}
echo "<pre>";
print_r(expl("A~a1~a2|B~b1~b2",'|~'));
echo "</pre>";
?>

那将是这样的...使用递归！冷杉的水平将得到第一个矩阵，做这样的事情$ matrix [0] ="A〜a1〜a2";$ matrix [1] ="B〜b1〜b2";然后，递归将完成第二部分，这将使每个字符串成为字符串数组，将成为字符串数组，直到没有更多的分隔符=)

that would be something like this... use recursion! the firs level will get the first matrix, doing something like this $matrix[0] = "A~a1~a2"; $matrix[1] = "B~b1~b2"; and then, the recursion will do the second part, that will make each string become the array of strings, that will become the array of strings, until there's no more separators =)

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