[nycphp-talk] mysql_insert_id Strangeness

Analysis & Solutions danielc at
Tue Aug 5 17:08:44 EDT 2003

Hey Folks:

On Tue, Aug 05, 2003 at 11:20:26AM -0400, Carlos A Hoyos wrote:
> It's safer to check the return value of mysql_query in this case (will
> return false if insertion fails).

Yep.  When mysql_query() fails, I check the value of mysql_errno().  Error 
numbers 1022 and 1062 have to do with duplicate keys on (if I recall 
correctly) primary keys and duplicate keys (or if I recall incorrectly, 
insert vs update queries).

switch ( @mysql_errno($Connection) ) {
    case 1022:
    case 1062:
        # Couldn't insert/update record due to duplicate key.

        # Some other database error.  Trap it.
        echo @mysql_error($this->SQLConnection);

... snipping out old, irrelevant parts... the friendly way to post...


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