Php Postgres Error
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Pg Connect Error
Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping http://php.net/manual/en/function.pg-result-error.php each other. Join them; it only takes a minute: Sign up catching errors from Postgresql to PHP up vote 3 down 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{ http://stackoverflow.com/questions/12349230/catching-errors-from-postgresql-to-php 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 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 erro
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the http://stackoverflow.com/questions/4253136/how-to-catch-pg-connect-function-error company Business Learn more about hiring developers or posting ads with us Stack Overflow https://en.wikibooks.org/wiki/PHP_Programming/PostgreSQL Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community 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 how to catch pg_connect() function error? up vote 4 down vote favorite 3 pg_connect() is showing the error in table connect error format.Instead of showing error message as table format need a error message alert. Error Message Warning: pg_connect() [function.pg-connect]: Unable to connect to PostgreSQL server: FATAL: password authentication failed for user "test" in /home/test/public_html/QueueManager/Modules/Database.php on line 41 After if showing error as table format. After executing pg_connect() throwed exception. But is is not working. Code function connect() { $HOST = $GLOBALS[Database_Conn][Db_Host]; # Host name $USER = $GLOBALS[Database_Conn][Db_User]; # database user name $DBNAME = $GLOBALS[Database_Conn][Db_Name]; php postgres error # name of the database $PASSWORD = $GLOBALS[Database_Conn][Db_Pass]; # password the database user. try { $conn = pg_connect("host=$HOST dbname=$DBNAME user=$USER ". "password=$PASSWORD sslmode=disable"); if(!$conn) { throw new Exception("Database Connection Error"); } return $conn; } catch (Exception $e) { print <<<_HTML_ script alert('Caught exception'); _HTML_; die(); } } Please give me the solution php postgresql share|improve this question edited Nov 23 '10 at 6:40 ajreal 36.7k85899 asked Nov 23 '10 at 5:43 ungalnanban 2,06063048 Isn't it kind of wired that you throw an exception while catching an exception...? (honest question, does PHP support this kind of throwing exceptions) –DrColossos Nov 23 '10 at 16:56 Yes, PHP 5 and up supports exceptions. I guess his code is like that because he's testing the exception stuff. The problem is that the "Warning: pg_connect()" message is generated before pg_connect even returns. –intgr Nov 24 '10 at 8:30 @DrColossos :: Probably he wants to hide the default exception which is revealing the username used in the connection attempt, in this case that message being: password authentication failed for user "test" –Mike Mügge Apr 5 '13 at 18:01 add a comment| 2 Answers 2 active oldest votes up vote 11 down vote pg_connect does not throw exception, so you have to translate to exception like
are already familiar with how to interface with MySQL in PHP, then the following chart should make the conversion to PostgreSQL much easier. Contents 1 Functions 2 Full MySQL Example 3 Full PostgreSQL Example 4 For More Information Functions[edit] Connecting: mysql_connect() takes three arguments (server, username, password) while pg_connect() takes a single connection string argument. mysql_connect() Example: $db = mysql_connect('localhost', 'mysql_user', 'mysql_pass'); pg_connect() Example: $db = pg_connect('host=localhost user=pg_user password=pg_pass dbname=my_database'); Database Selection: In MySQL, you have to separately specify the name of the database you wish to connect to, while in PostgreSQL it is built into pg_connect()'s connection string. Querying: mysql_query() and pg_query() behave in the same manner. mysql_query() Example: $grab_people = mysql_query("SELECT * FROM people WHERE id_num = 3761832"); pg_query() Example: $grab_people = pg_query("SELECT * FROM people WHERE id_num = 3761832"); Fetching Associative Results: mysql_fetch_assoc() and pg_fetch_assoc() behave in the same manner. mysql_fetch_assoc() Example: $person = mysql_fetch_assoc($grab_people); pg_fetch_assoc() Example: $person = pg_fetch_assoc($grab_people); Grabbing Errors: While MySQL makes use of mysql_error(), PostgreSQL uses pg_last_error(). mysql_error() Example: $error = mysql_error(); pg_last_error() Example: $error = pg_last_error(); Closing Database Connection: mysql_close() and pg_close() behave in the same manner. mysql_close Example: mysql_close($db); pg_close Example: pg_close($db); Freeing Results: mysql_free_result() and pg_free_result() behave in the same manner. mysql_free_result() Example: mysql_free_result($grab_people); pg_free_result() Example: pg_free_result($grab_people); Full MySQL Example[edit] $db = mysql_connect('localhost', 'mysql_user', 'mysql_pass'); $grab_people = mysql_query("SELECT * FROM people WHERE id_num = 3761832"); $person = mysql_fetch_assoc($grab_people); print_r($person); $error = mysql_error(); if($error != ) { print $error; } mysql_free_result($grab_people); mysql_close($db); Full PostgreSQL Example[edit] $db = pg_connect('host=localhost user=pg_user password=pg_pass dbname=my_database'); $grab_people = pg_query("SELECT * FROM people WHERE id_num = 3761832"); $person = pg_fetch_assoc($grab_people); print_r($person); print pg_last_error(); pg_free_result($grab_people); pg_close($db); For More Information[edit] PHP PostgreSQL manual PostgreSQL homepage and documentation MySQL PHP