The type of quotes you used are invalid. I've never seen double italic quotes like that before but the following should do the job.
<html>
<head>
<title>PHP Test</title>
</head>
<body>
<p>This is an HTML line
<p>
<?php
//before was: echo “This is a PHP line”;
echo "This is a PHP line"; //now is
phpinfo();
?>
</body></html>
Hope that helps.
cwarn23
Occupation: Genius
3,033 posts since Sep 2007
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