PHP - 将多维数组转换为字符串？

PHP - Convert a multidimensional array to string?

提问by Dan

I'm working on a small ajax application and need to see if the values being generated in the background are what is expected. The value returned by the quest can be quite a complex multidimensional array, is there a way to convert this into a string so that it can be shown with alert?

我正在开发一个小型 ajax 应用程序，需要查看在后台生成的值是否符合预期。任务返回的值可能是一个相当复杂的多维数组，有没有办法将其转换为字符串，以便它可以与警报一起显示？

Is there any other way of seeing these values?

有没有其他方式可以看到这些值？

Any advice appreciated.

任何建议表示赞赏。

Thanks.

谢谢。

回答by knittl

print_r, var_dumpor var_exportare good candidates. while coding an ajax application, you might also want to look at json_encode.

print_r，var_dump或者var_export是很好的候选人。在编写 ajax 应用程序时，您可能还想查看json_encode.

回答by soulmerge

If you want to show it with javascript, I would recommend json_encode(), everything else has been covered by knittl's answer.

如果你想用 javascript 显示它，我会推荐json_encode()knittl 的答案已经涵盖了其他所有内容。

回答by WilliamStam

i work on a bunch of ajax apps.. in firefox i have an "add-on" called JSON view

我在一堆ajax应用程序上工作..在firefox中我有一个名为JSON视图的“附加组件”

then all my projects have a function

那么我所有的项目都有一个功能

function test_array($array) {
    header("Content-Type: application/json");
    echo json_encode($array);
    exit();
}

so whenever i want to see what the output is i just go test_array($something)and it shows me the results.

所以每当我想看看输出是什么时，我就去test_array($something)看看结果。

its made debugging a breaze now

它让调试变得轻而易举

PS. know this Q is ancient and im not really answering the origional posters Q but might be useful for someone else aswell

附注。知道这个 Q 很古老，我并没有真正回答原始海报 Q，但可能对其他人也有用

回答by Roch

<script type="text/javascript">
alert(<?=print_r($array)?>);
</script>

回答by Ahmad Balavipour

I found this function useful:

我发现这个功能很有用：

function array2str($array, $pre = '', $pad = '', $sep = ', ')
{
    $str = '';
    if(is_array($array)) {
        if(count($array)) {
            foreach($array as $v) {
                $str .= $pre.$v.$pad.$sep;
            }
            $str = substr($str, 0, -strlen($sep));
        }
    } else {
        $str .= $pre.$array.$pad;
    }

    return $str;
}

from this address: http://blog.perplexedlabs.com/2008/02/04/php-array-to-string/

从这个地址：http: //blog.perplexedlabs.com/2008/02/04/php-array-to-string/

回答by kachmi

Here is a simple answer in PHP:

这是一个简单的 PHP 答案：

function implode_recur($separator, $arrayvar) {
    $output = "";
    foreach ($arrayvar as $av)
    if (is_array ($av)) 
        $out .= implode_recur($separator, $av); // Recursive array 
    else                   
        $out .= $separator.$av;

    return $out;<br>
}

$result = implode_recur(">>",$variable);

回答by J__

The implodecommand returns an array as a string.

该implode命令将数组作为字符串返回。

回答by user187291

you can also consider FirePHP http://www.firephp.org

你也可以考虑 FirePHP http://www.firephp.org