Mixing javascript, jQuery and PHP, newline

Question

Ok, so I have a few things here:

Javascript:

desc = "line 1 \n line 2"

jQuery:

$("#msg").text(desc);

PHP:

const NUM = 555;

What I want, is to change the text of the <p> with the id of msg, so that it would contain a piece of text with a number of lines, and in one of them the number from the PHP constant.

Like so:

Line 1
Line 2 555, Line 2 continued
Line 3

My problem is how do I mix them all? I tried the following:

var desc = "line 1 \n line2" + <?php echo NUM ?> +"\n line 3"; and that doesn't work.

"and that doesn't work." What doesn't work? Do you get an error, or is it in wrong order? — Henrik Karlsson
– Henrik Karlsson, Commented May 8, 2013 at 16:32
What's the expected output? I'm not understanding line 1 line 2 line 3. — Dave Chen
– Dave Chen, Commented May 8, 2013 at 16:34
The expected input is just 3 lines of text, while in one of them I have the number which is stored in the PHP constant. About the error - I get 'Unexpected token ILLEGAL'. — frrlod
– frrlod, Commented May 8, 2013 at 16:39

Vadim · Accepted Answer · 2013-05-08 17:20:17Z

2

There are several issues with your code:

PHP constants should be defined using define("CONSTANT_NAME", "VALUE"); syntax;
\n has no effect inside HTML tag (if you dont apply white-space: pre; or pre-wrap);
<?php echo NUM; ?> should be wrapped with " or should be inside JavaScript string;
$("#msg").text(desc) will remove all tags from desc, thus you need to use .html(desc) instead.

What you need is something like this:

PHP

define("NUM", 555);

JavaScript

var desc = "line 1<br/>line2 <?php echo NUM; ?><br/>line 3";
$("#msg").html(desc);

edited May 8, 2013 at 17:20

answered May 8, 2013 at 16:35

Vadim

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3 Comments

user428517 Over a year ago

+1 because this looks right, but the question is not very clear at all ... so i can't tell.

user428517 Over a year ago

@frrlod do you understand why it worked? that's more important than just having something that works.

Vadim Over a year ago

@frrlod I updated the answer with description what was wrong with your code.

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