对数组的键模式匹配

本文介绍了对数组的键模式匹配的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我需要获得股票价值出这个数组：

I need to get the stock values out of this array:

Array ( [stock0] => 1 [stockdate0] => [stock1] => 3 [stockdate1] => apple [stock2] => 2 [ stockdate2] => )

我需要这个数组，数组键=股+ 1通配符的模式匹配。我已经使用数组过滤功能，以获取有关PHP手册每隔值尝试，但空值似乎把它扔出去。我尝试了很多不同的东西，我发现，但没有什么工作。

I need to pattern match on this array, where the array key = "stock" + 1 wildcard character. I have tried using the array filter function to get every other value on the PHP manual but the empty values seem to throw it out. I tried alot of different things I found but nothing is working.

可以这样做？

推荐答案

array_filter没有访问密钥，因此不适合你的工作的工具。

array_filter does not have access to the key and therefore is not the right tool for your job.

我相信你在找什么做的是这样的：

I belive what you're looking to do is this:

$stocks = Array ( "stock0" => 1, "stockdate0" => '', "stock1" => 3, "stockdate1" => 'apple', "stock2" => 2, "stockdate2" => '' ); $stockList = array(); //Your list of "stocks" indexed by the number found at the end of "stock" foreach ($stocks as $stockKey => $stock) { sscanf($stockKey,"stock%d", &stockId); // scan into a formatted string and return values passed by reference if ($stockId !== false) $stockList[$stockId] = $stock; }

现在$ stockList看起来是这样的：

Now $stockList looks like this:

Array ( [0] => 1 [1] => 3 [2] => 2 )

您可能需要用它来小题大做了一点，但我觉得这是你所要求的东西。

You may need to fuss with it a bit, but I think this is what you are asking for.

不过，您是否有这样做的选择真的应该跟随杰夫·奥伯的意见。

HOWEVER, you really should be following Jeff Ober's advice if you have the option to do so.