在HTML页面中搜索PHP变量

Question

I run a small, specialist classical music listings web site and have the venue name, address, telephone number etc. (with html mark up) in a heredoc, stored in an external php file. All I do is write:

The Mango String Quartet is performing at

<?php echo $local_arts_centre; ?>

and the venue details are printed neatly laid out.

I have written a search facility which searches the text but does not search the variables, the phrase "mango string quartet" would be found, but not "local arts centre".

I have searched the web and PHP books but can not find the solution. Any ideas would really be appreciated.

Answer 1

you're looking for isset($var)

if a variable isn't set than isset($var) == null.

Check 'isset' it here: http://php.net/manual/en/function.isset.php