Php variables in javascript code

Question

I have the code below in a helper function, where I try to redirect the user to a link after an event occurs.

static public function redirect($path)
{       
    echo '<script type="text/javascript">';
    echo 'self.parent.location.href = "$path";';
    echo '</script>';        
}

In my case I call the function as Helper_Popup::redirect("/account/my_addresses") but, of course, it redirects me to a link something/$path. How should I 'embed' the php variable in the above code?

Maybe as `echo "self.parent.location.href = '/$path';";` (note leading slash and quote inversal)? Is that what you're after? — DaveRandom, Apr 18 '12 at 12:04
http://stackoverflow.com/questions/3446216/difference-between-single-quote-and-double-quote-string-in-php — thwd, Apr 18 '12 at 12:04
It is impossible to have a php variable in javascript code. That's 2 different languages, having no access to each other variables. — Your Common Sense, Apr 18 '12 at 13:21

score 2 · Answer 1 · answered Apr 18 '12 at 12:04

You have your $path variable encased in single quotes so the variable is being interpreted literally as '$path' and not the actual value of the variable, which is the difference in php between double and single quotes, try this:

static public function redirect($path)
{       
    echo '<script type="text/javascript">';
    echo 'self.parent.location.href = "'.$path.'";';
    echo '</script>';        
}

alphanyx · Answer 2 · 2012-04-18T13:33:47.707

2

The line is incorrect. If you want to use php in Javascript you have to do it so

echo 'self.parent.location.href = "' . $path . '";';

or you can use the double quotes like this

echo "self.parent.location.href = '$path';";

If you use single quotes php will not be executed. But with double quotes php will parse the php code if available and single quotes will write the echo as plain text: "$path"

edited Apr 18 '12 at 13:33

answered Apr 18 '12 at 12:05

alphanyx

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I personally like the first example more then the second. There is a big chance that your editor will not highlight the $path variable in the second example. – huysentruitw Apr 18 '12 at 12:14
@Your Common Sense: that was wrong described you're right. i've corrected it – alphanyx Apr 18 '12 at 13:35

score 1 · Answer 3 · answered Apr 18 '12 at 12:04

1

echo 'self.parent.location.href = "'. $path .'";';

answered Apr 18 '12 at 12:04

TerryProbert

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1

lots of answers - pretty much all the same - very quickly, I'm never fast enough for SO – TerryProbert Apr 18 '12 at 12:06
1

very rare that I am both correct and fast enough at the same time! – martincarlin87 Apr 18 '12 at 12:07

score 0 · Answer 4 · answered Apr 18 '12 at 12:04

0

echo "self.parent.location.href = '$path';";

answered Apr 18 '12 at 12:04

dfsq

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score 0 · Answer 5 · edited Apr 18 '12 at 13:03

0

Try.

echo 'self.parent.location.href = "'. $path .'";';

edited Apr 18 '12 at 13:03

undone

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answered Apr 18 '12 at 12:06

Satish N Ramteare

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score -1 · Answer 6 · answered Apr 18 '12 at 12:05

-1

add a <?php ?> tag and echo the variable

Example

<script src='<?php echo $var; ?>' </script>

answered Apr 18 '12 at 12:05

Sudantha

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if the "shoprt_open_tag" option is enabled in the php.ini you can also use "=$var?>" for your output – alphanyx Jul 04 '12 at 16:03

Php variables in javascript code

6 Answers6