Description:
------------
Got parse error when double-quoted string contains variable.

[Code]
$pattern = "/\<$tagName[^\>]*\>/i"; 
[/Code]

[Error message]
Parse error: parse error, unexpected T_ENCAPSED_AND_WHITESPACE, expecting T_STRING or T_VARIABLE or T_NUM_STRING in php5bug.php on line 6
[/Error message]

I'm using php5.0.0rc1 in windows 98 from command line
the command is: "php -f php5bug.php"

the same I got while test with php5.0.0RC2


Reproduce code:
---------------
<?php
$text = "<script></script>";
$tagName = 'script';

//These won't work	
$pattern = "/\<$tagName[^\>]*\>/i"; //backslash not escaped
$pattern = "/\\<$tagName[^\\>]*\\>/i"; // backslash escaped

//These work
$pattern = "/\<" . $tagName . "[^\>]*\>/i"; //backslash not escaped
$pattern = "/\\<" . $tagName . "[^\\>]*\\>/i"; // backslash escaped
?>

Expected result:
----------------
variables in double-quoted string could be altered


Actual result:
--------------

Parse error: parse error, unexpected T_ENCAPSED_AND_WHITESPACE, expecting T_STRING or T_VARIABLE or T_NUM_STRING in C:\home\php5bug.php on line 6