Echoing php in js

[RynMan]

Hey guys

 

I've got a menu built using a third party tool and it has effectively created all of the javascript which is nice.  What I'm trying to do is have the sub menu text and links pulled from mySQL using PHP.  I've got the php to do this and it work great.  However, I now essentially want to just echo the text that the php pulls from the database, in the .js file.  How can I do this?  Is it an option to bring all of this javascript into the php document where I'm displaying the menus somehow, then run the query in there and effectively add the echo?

 

Thanks guys for any help/suggestions.

[trq]

PHP is processed (server-side) long before Javascript is processed (client-side). You can use PHP to output Javascript however if that is what your asking.

 

Can't really help much without seeing some code.

[Minase]

in that part of javascript just do

<?php echo $variable; ?>

 

you must assign the $variable with values like

$variable = 'var x = 10';

 

in $variable content you should put the normal javascript content,ofcourse with modification from your database

[RynMan]

PHP is processed (server-side) long before Javascript is processed (client-side). You can use PHP to output Javascript however if that is what your asking.

 

Can't really help much without seeing some code.

 

Thanks Thorpe. 

 

I'm trying to basically echo this in my PHP document, amongst some other javascript.

 

echo 'it=s2.addItem(5,6,7,"'John Smith'",n,n,"","",n,n,n,n,n,112,20,2,0,0);';

 

However it is killing my javascript on the page.  Nothing appears.

Though, when I do this....

 

it=s2.addItem(5,6,7,"<?php echo "John Smith"; ?>",n,n,"","",n,n,n,n,n,112,20,2,0,0);\n';

 

it works fine.

[RynMan]

I should also note that in place of "John Smith" I'm actually using a variable with an array with multiple values.  Just put the text in for the purpose of explaining it as it still has the same result.

[trq]

Just put the text in for the purpose of explaining it as it still has the same result.

 

Post your actual code.

[RynMan]

<?php

foreach ($LNames as $val) {

  echo 'it=s2.addItem(5,6,7,"'.$val.'",n,n,"","",n,n,n,n,n,112,20,2,0,0);\n';

}

?>

[trq]

Variables (and new lines) are not interpolated within single quotes.

 

echo "it=s2.addItem(5,6,7,'$val',n,n,'','',n,n,n,n,n,112,20,2,0,0);\n";

[beingalex]

This depends very much on how the Javascript works.

 

Has this been resolved ?

[nafetski]

Alright..this is a two part answer.

 

#1)  Yes, you CAN echo php into JavaScript IF (this is important) it is in a file that is parses by php on your server (in most instances a .php or sometimes a .HTML file depending on your config.  What this means is inside "inline JavaScript"  you can echo php into it.  But, this brings me to part 2

 

#2)  It is...without a doubt, best practice to segment your JavaScript away from your php.  If you need to retrieve server side data for your JavaScript, it is almost always best to do it via an ajax request.  This let's you still keep ALL of your JavaScript in .js files by themselves (where it belongs!).  With php5 giving you json_encode this is painfully easy.

 

So in short...you can get away with option #1 (inline JavaScript) but the right way is via making a server side request.

 

Let me know if you have any problems!

[RynMan]

thanks for the help guys.  works great.