Newlines in javascript within a PHP variable

Question

I've written some PHP which encases some javascript within a PHP variable, like so:

$js .= 'response['.$x.'] = FinanceDetails("'.$finance_code.'",' . $cart_value . ','.$minimum_deposit.','.$total_cost.');';

But this can be repeated up to three times, and then it's injected between <script> tags and I'd like it to show like so:

response[0] = FinanceDetails("ONIF12",290.00,10,1500);
response[1] = FinanceDetails("ONIF6",290.00,10,1500);
...

But currently it shows in one long string as there are no line breaks. I've tried adding \n and \r as well as \n\r together at the end of the $js value but I just keep getting an Illegal character error - how would I implement a new line / line break in this situation?

@RayonDabre nl2br won't work, since he is writing out javascript code. The code would just contain <br> then, which is invalid javascript. — tobspr
– tobspr, Commented Apr 20, 2016 at 11:02

tobspr · Accepted Answer · 2016-04-20 10:51:05Z

2

You have to use the "" quotation marks instead of '' to be able to print out newlines. For example:

$js .= 'response['.$x.'] = FinanceDetails("'.$finance_code.'",' . $cart_value . ','.$minimum_deposit.','.$total_cost.');' . "\n";

Otherwise PHP does not parse the newline and your code ends up with a "\n" in it.

answered Apr 20, 2016 at 10:51

tobspr

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1 Comment

Michael Emerson Over a year ago

Perfect answer - had a funny feeling I'd seen something similar before with the single / double quote, thank you

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