RE: Why this doesn't work ?

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> 
> [snip]
> ---
> $query = "SELECT COUNT (login) FROM formacao WHERE login = '$login'";
> $result = mysql_query($query);
> mysql_fetch_row($result);
> ---
> [/snip]
> 
> mysql_query() requires a connections resource
> 
> $result = mysql_query($query, $myConnection);

The connection resource is optional.  It will use the most recent connection
if not specified.

JM

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