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Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up catching errors from Postgresql to PHP up vote 3 down http://php.net/manual/en/function.pg-result-error.php vote favorite 1 I want to catch and show the error(in a way that i choose) of a query on the web page using php . So instead of the code below $result=pg_query($connection,$query); if($result){ //success } else{ echo pg_last_error($connection); } can i use a method like error code matching or something else to achieve things like if(error equals duplicate value error){ echo "this value already exists"; } else http://stackoverflow.com/questions/12349230/catching-errors-from-postgresql-to-php if(error equals different type error){ echo "You should enter wrong type for column blabla" } Note I am using postgresql php sql postgresql error-handling share|improve this question edited Sep 10 '12 at 10:32 asked Sep 10 '12 at 9:52 woryzower 4741716 Yes, you can do this, but I'm not sure what you are asking. –Aleks G Sep 10 '12 at 9:57 @AleksG I don't want to use pg_last_error function . I want to write error message manually for corresponding error –woryzower Sep 10 '12 at 10:03 add a comment| 3 Answers 3 active oldest votes up vote 6 down vote accepted It's possible to retrieve the desirable standard SQLSTATE errcode, but there's a trick: the query has to be sent through the asynchronous pg_send_query() instead of the synchronous pg_query(). This is because pg_query() returns false on error instead of the resource that is required to peek at the error details. When pg_get_result() is called after pg_send_query, it will block anyway until the query is done, so it does not really complicate things compared to the synchronous case. And it returns a result which can be fully exploited for precise error handling. Example: if (pg_send_query($db, $query)) { $res=pg_get_result($db); if ($re
Frank Naude Reply | Threaded Open this post in threaded view ♦ ♦ | Report Content http://postgresql.nabble.com/pg-last-error-doesn-t-return-connection-errors-td2702160.html as Inappropriate ♦ ♦ pg_last_error() doesn't return connection errors https://www.postgresql.org/message-id/1282862673.3487.3674.camel@happy.home.mcmillan.net.nz Hi, I can successfully connect to PostgreSQL (pgsql extension). However, when I make a deliberate mistake, I'm unable to capture the connection error with pg_last_error() as one would with the *_last_error() functions of other database extensions. Here is an connect error example: The following output (with warnings) is returned: Warning: pg_connect() [function.pg-connect]: Unable to connect to PostgreSQL server: FATAL: password authentication failed for user "postgres" in .. Warning: pg_last_error() [function.pg-last-error]: No PostgreSQL link opened yet in ... bool(false) php postgres last One would expect pg_last_error() to return "password authentication failed" instead of FALSE! Best regards. Frank -- Sent via pgsql-php mailing list ([hidden email]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-php Andrew McMillan Reply | Threaded Open this post in threaded view ♦ ♦ | Report Content as Inappropriate ♦ ♦ Re: pg_last_error() doesn't return connection errors On Thu, 2010-08-26 at 13:44 +0200, Frank Naude wrote: > Hi, > > I can successfully connect to PostgreSQL (pgsql extension). However, > when I make a deliberate mistake, I'm unable to capture the connection > error with pg_last_error() as one would with the *_last_error() > functions of other database extensions. > > Here is an example: > > $c = pg_connect('host=127.0.0.1 user=postgres password=xxx > dbname=yyy') or var_dump( pg_last_error() ); > ?> > > The following output (with warnings) is returned: > > Warning: pg_connect() [function.pg
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