在JavaScript代码中使用换行符检索数据时出现Textarea问题

Question

A lot of queries raised targeting this issue. ie line breaks within a textarea attribute.

I tried to use str_replace("<br />", "\\n",$text) within a javascript variable where I got it working within a php code. Unfortunatley had no such luck with the methodology I am using within the javascript code.

The code I am trying to use is as follows:

var markup = "<textarea name='tcaction[]' id='tcaction' rows='3' cols='105' placeholder='Enter Required Actions' required><?php echo str_replace("<br />", "\n",$text) ?></textarea><br>";

The str_replace within the javascript variable is not working. Would you cordially direct me to the right direction?

Thanks for assistance.

Answer 1

Replace this ...

...<?php echo str_replace("<br />", "\n",$text) ?>...
                                     ^^

... by this:

...<?php echo str_replace("<br />", "\\n",$text) ?>...
                                     ^^^

So PHP sends \\n (2 chars) and JavaScript interprets it as newline character.

Answer 2

All, for the interest of others the issue has been resolved as follows:

var text = <?php echo json_encode($text); ?>

and then used

text.replace("<br />", "\\n");

it works and no issues of un-escaped new line etc etc.

thanks anyway.