将多行php字符串传递给javascript函数/变量 [英] passing php string with multiple lines to a javascript function/variable

问题描述

我正在其他人的网站上工作，它的逻辑非常愚蠢！ 无论如何，有一个php变量，其中包含一个来自数据库的字符串.

I'm working on someone else's website and it has a very stupid logic! Anyway, there is a php variable which contains a string which comes from database.

$x = ' aaaa
bbb

ccc


gggg ';

，我需要将此字符串提供给javascript函数:

and I need to feed this string to a javascript function:

<script>

var x = "<?php echo $x ; ?>";
some_function(x);

</script>

如您所知，我最终会遇到一个错误，因为javascript变量如果不将多个行合并在一起就不能包含多行:

As you know I end up with an error because a javascript variable cannot contain multiple lines without joining them together like this:

var x = ' i '+
        ' have '+
        ' different lines'; 

我该怎么做?它是否删除行或正确设置格式都没关系，我只是想摆脱此错误.

How can I do this? It doesn't matter if it removes the lines or formats it properly, I just want to get rid of this error.

推荐答案

将字符串传递到 json_encode 使其正确逃脱.如果要输出到HTML文档，请确保将JSON_HEX_TAG作为选项的一部分传递，以转义<和>并防止恶意用户尽早结束</script>标签并引入XSS漏洞

Pass the string into json_encode to properly escape it. If you're outputting to an HTML document, make sure to pass JSON_HEX_TAG as part of the options, to escape < and > and prevent a malicious user from ending your </script> tags early and introducing an XSS exploit.

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