php - Mysql_real_escape_string() Warning Confusion

Question

echo mysql_real_escape_string($dbc, "string");

Produces the warning:

Warning: mysql_real_escape_string() expects parameter 1 to be string, object 
given in **...**

So even when I give the function what seem to be obviously string objects it's not seeing them as strings.

What's going on here?

Answer 1

mysql_real_escape_string just takes a string for an argument. That's it.

$string = mysql_real_escape_string('string')

If you want to specify the link identifier, it is the optional second argument:

$string = mysql_real_escape_string('string', $dbc)