当使用内爆时，数组到字符串转换错误

I'm confused about an error I am getting stating Array to string conversion

我对一个错误感到困惑，我将声明数组转换为字符串

The reason I'm confused is I'm trying to do exactly that, convert an array to a string, using implode which according to the manual should allow me to convert my array into a string. So why am I getting an error?

我感到困惑的原因是，我正试图这么做，将数组转换成字符串，使用内爆，根据手册，内爆应该允许我将数组转换成字符串。为什么会有误差呢?

var $matches is an array. $error_c is the var I want to store the string.

var $matches是一个数组。$error_c是我要存储字符串的var。

print_r($matches); // prints the array correctly
$error_c = implode(',', $matches);
echo $error_c;

Outputs simply array and gives:

输出简单的数组并给出:

Notice: Array to string conversion in ...

The manual states that implode — Join array elements with a string so why do I get an error when I try to do it?

内爆的手动状态——连接数组元素和字符串，为什么当我尝试去做的时候会出现错误?

Edit: this is the output I get from $matches

编辑:这是我从$matches中得到的输出。

Array ( [0] => Array ( [0] => C [1] => E [2] => R [3] => R [4] => O [5] => R [6] => C [7] => O [8] => N [9] => T [10] => A [11] => C [12] => T [13] => S [14] => U [15] => P [16] => P [17] => R [18] => E [19] => S [20] => S [21] => E [22] => D ) )

4 个解决方案

#1

You have an array of arrays... Try this:

你有一个数组…试试这个:

$error_c = implode(',', $matches[0]);

#2

$error_c = implode(',', $matches[0]);
echo $error_c;

because your array contains arrays inside

因为数组中包含数组

#3

Do that:

这样做:

print_r($matches); // prints the array correctly
$error_c = implode(',', $matches[0]);
echo $error_c;

#4

To just put whatever data is in the array into a string, try this

要将数组中的任何数据放入字符串，请尝试以下操作

function whatever_to_string($in){
    ob_start();
    print_r($in);
    return ob_get_clean();
    }

The 'ob_*' functions control the output buffer.

“ob_*”函数控制输出缓冲区。

http://php.net/manual/en/function.ob-start.php

http://php.net/manual/en/function.ob-get-clean.php

#1