PHP 无规则数组如何迭代拼接到想要的效果呢？

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数组：

$init = [ 'router/aaa' => [ 'opear' => ['1.php', '2.php'], 'list' => ['1.php', '2.php'] ], 'router/bbb' => [ 'url' => ['a.php', 'b.php'] ], 'router/home/help' => [ 'opear' => [ 'update' => ['1.php', '2.php'], 'delete' => ['1.php', '2.php'] ], 'status' => ['start.php', 'stop.php'] ] ];

效果：

array( 0 => 'router/aaa/opear/1.php', 1 => 'router/aaa/opear/2.php', 2 => 'router/aaa/list/1.php', 3 => 'router/aaa/list/2.php', 4 => 'router/bbb/url/a.php', 5 => 'router/bbb/url/b.php', 6 => 'router/home/help/opear/update/1.php', 7 => 'router/home/help/opear/update/2.php', ... );

11 replies 2018-01-19 14:25:35 +08:00

loginv2

Jan 18, 2018 via Android

递归遍历？

loadinger

Jan 18, 2018

递归不就可以么。

gclove

Jan 18, 2018

@Bule 简单，先判断遍历的结果是不是一个数组，是的话调用自己。否则输出 /保存

Bule

Jan 19, 2018

@gclove 想不通额，请问有 demo 示例吗？

eoo

Jan 19, 2018 via Android

<?php
//无限遍历数组
$a1 = array("a", "b", "c"); //一维数组
$a2 = array(array(21, 3, 6), array("a", "b", "c")); //二维数组
$a3 = array(array(array(5, 55), 4, 444), 2, 7, 6, 8, array("w", "d", array(3, 2, "a"), "s")); //多维不规则数组
function fun($a) {
foreach ($a as $val) {
if (is_array($val)) { //如果键值是数组，则进行函数递归调用
fun($val);
} else { // 如果键值是数值，则进行输出
echo "$val<br />";
} //end if

} //end foreach

} //end fun
//fun($a1);
//fun($a2);
fun($a3);
?>

vincenttone

Jan 19, 2018

试试这个
```
function r($arr, $pre = '')
{
$r = [];
foreach ($arr as $_k => $_v) {
if (is_array($_v) && !empty($_v)) {
$r = array_merge($r, r($_v, $pre . '/' . $_k));
} else {
$r[] = $pre . '/' . $_v;
}
}
return $r;
}
```

vincenttone

Jan 19, 2018

顺路打听一下怎么发代码块呢？

Bule

Jan 19, 2018

@vincenttone
```语言（ php ）
code
```

Bule

Jan 19, 2018

@vincenttone 好 6 啊，这方面的知识是多看看数据结构吗？

dee

Jan 19, 2018

也贴一个虽然不是迭代
```php
function router($ary, &$newAry, $pre = '')
{
foreach($ary as $key => $val)
{
if(is_array($val))
{
router($val, $newAry, "$pre/$key");
}
else
{
$newAry[] = "{$pre}/{$val}";
}
}
}
```

vincenttone

Jan 19, 2018

@Bule 我写的方法是一个递归，如果要和数据结构说到一起的话，写过一些树形结构的话，会有一些影响吧。
但是其实递归也算是一种常用的编程套路，很多时候比循环实现更容易一些吧，所以实践中经常会用到，多写代码也就好了。