PHP variable with Javascript - php

Question

I want to write PHP code that check few conditions and then trigger JavaScript on the loaded page.
The php file is:
$jwplayer= "<script>jwplayer('video1').setup({playlist:$file});</script>";
$url2= "http://$_SERVER[HTTP_HOST]/index.php";
$url3= "http://$_SERVER[HTTP_HOST]/index3.php";
$url = "http://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
if($url2==$url) {
$file= "/media/video.xml";
echo $jwplayer;
}
if($url3==$url) {
$file= "/media/video2.xml";
echo $jwplayer;
}
I'm using PHP include to include the above code.
If the URL of the page is equal to the value of $url2 above, then I want the playlist updated. This would be done by setting $file to "/media/video.xml" and executing the required JavaScript I am attempting to include.

Answer 1

Try this:
$file= "/media/default.xml";
$url = "http://" . $_SERVER[HTTP_HOST] . $_SERVER[REQUEST_URI];
$url2= "http://$_SERVER[HTTP_HOST]/index.php";
if($url2==$url) {
$file= "/media/video.xml";
}
$jwplayer= "<script>jwplayer(\"video1\").setup({playlist:".$file."});</script>";
echo $jwplayer;

Answer 2

I would start with fixing your syntax errors and go from there:
function jwPlayer($xml) {
echo("<script>jwplayer('video1').setup({playlist:'$xml'});</script>");
}
$url2= "http://" . $_SERVER["HTTP_HOST"] . "/index.php";
$url = "http://" . $_SERVER["HTTP_HOST"] . $_SERVER["REQUEST_URI"];
if($url2 == $url) {
$file= "/media/video.xml";
jwPlayer($file);
} else {
jwPlayer("path/to/other/file.xml");
}
Defining a variable after its use will do nothing but cause you problems.

Answer 3

maybe like this
$file = "somefile.xml";
$url2= "http://$_SERVER[HTTP_HOST]/index.php";
$url = "http://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
if($url2==$url)
$file= "/media/video.xml";
$jwplayer= "<script>jwplayer(\"video1\").setup({playlist:$file});</script>";
echo $jwplayer;

Answer 4

Try this..
$url2= "http://$_SERVER[HTTP_HOST]/index.php";
$url = "http://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
if($url2==$url) {
$file= "/media/video.xml";
echo $jwplayer= "<script>jwplayer("video1").setup({playlist:$file});</script>";
}
in you code it looks like your trying to get the value of $file by echo'ing the script..
hope that helps

Answer 5

There is a few mistakes within this code.
In the moment you assign this string, the variable $file is undefined, you have to define it first.
$jwplayer= "<script>jwplayer('video1').setup({playlist:$file});</script>"
On a javascript object literal, you must have to quote a string. If you don't the content of the variable $file will become a undefined javascript variable.
{playlist:"$file"} //playlist is a string
Try this
$url2 = "http://$_SERVER[HTTP_HOST]/index.php";
$url = "http://" . $_SERVER[HTTP_HOST] . $_SERVER[REQUEST_URI];
if($url2==$url) {
$file= "/media/video.xml";
$jwplayer= "<script>jwplayer('video1').setup({playlist:'$file'});</script>";
echo $jwplayer;
}
I'm not sure what do you mean by "constant", but I would do something like this, but I can't tell for sure if this works just with the little information provided in the actual question.
<?php
$url2 = "http://$_SERVER[HTTP_HOST]/index.php";
$url = "http://" . $_SERVER[HTTP_HOST] . $_SERVER[REQUEST_URI];
$file = "";
if($url2==$url) {
$file = "/media/video.xml";
}
?>
<script>
jwplayer('video1').setup({playlist:'<?=$file>'});
</script>