问题

我在PHP中有以下代码：

```java
$file_data = base64_decode(preg_replace('/^data:application.*base64,(.*)/i', '$1', $data]));

当我尝试将其转换为JAVA时：

String data = '包含数据的完整字符串';
data = data.replaceAll('/^data:application.*base64,(.*)/i', '$1');

它显示无效字符。

<details>
<summary>英文:</summary>

I have below code in PHP 

**$file_data = base64_decode(preg_replace(&#39;/^data:application.*base64,(.*)/i&#39;, &#39;$1&#39;,  $data]));**

When I am trying to convert it to JAVA

		String data = &#39;Whole string with data&#39;;
		data = data.replaceAll(&#39;/^data:application.*base64,(.*)/i&#39;, &#39;$1&#39;);

It is saying invalid character

</details>