Test for JavaScript results

[ywickham]

I currently have a PHP script that calls a JavaScript script on another server. Depending on a variable, sometimes that JavaScript returns HTML code and sometimes it doesn't.

I'd like to add introductory text if the JavaScript is going to return HTML, but would not like for it to display if the script is returning nothing. How can I check/test within PHP or JavaScript to see if the script is returning anything or not?

Thanks!

[ccgorman]

Not sure which ones to use, but look these up on www.php.net and see if they would work. I have a feeling that all will return true as the file exists and is returning information (code).

is_readable()

or

fopen()

or

file_get_contents()

[ywickham]

Thank you, but I've already tried fopen() and is_readable(), among other things. Here's a posting of my code, as the only other thing I can think of is that I'm just not coding correctly:

//checks for set variable
if ($rateid){

//checks if variable is not generic
if ($rateid != "ADSPACE") {

	$url = "http://content.website.com/locator/dist.xpml?prod_id=".$rateid."&num_merch=5&rf=img";

	if (is_readable($url)) {

		print("<p><strong><font size=\"4\">Purchase Info for the $name</font></strong></p>");
		print("<div align=\"center\"><script src=\"$url\"></script></div><br>");
		print("<a href=\"http://www.website.com/marketplace/search/search__cat_id--402,prod_id--$rateid.html\">";
		print("Click here for an explanation of the rating used above.</a>");
	}
}
}

Thanks. I appreciate any help I can get.