Description:
------------
Please add a new parameter for the function addslashes, where it flags 
what type of character to quote string with slashes.

Such as:

SINGLE
DOUBLE
BACKSLASH
NULL
ALL

All would remain the default, as it is right now. Example use with the 
new parameter:

<?php
$str = "He asked, \"Is your name O'reilly?\"";

// Outputs: He asked, "Is your name O\'reilly?"
echo addslashes($str, SINGLE);
?>

<?php
$str = "He asked, \"Is your name O'reilly?\"";

// Outputs: He asked, \"Is your name O'reilly?\"
echo addslashes($str, DOUBLE);
?>


<?php
$str = "He asked, \"Is your name O'reilly?\"";

// Outputs: He asked, \"Is your name O\'reilly?\"
echo addslashes($str, ALL);
?>