pg_result_error_field(3) [php man page]

PG_RESULT_ERROR_FIELD(3)												  PG_RESULT_ERROR_FIELD(3)

pg_result_error_field - Returns an individual field of an error report.

SYNOPSIS

       string pg_result_error_field (resource  $result, int  $fieldcode)

DESCRIPTION

       pg_result_error_field(3)  returns one of the detailed error message fields associated with $result resource. It is only available against a
       PostgreSQL 7.4 or above server. The error field is specified by the $fieldcode.

	Because pg_query(3) and pg_query_params(3) return FALSE if the query fails, you must use pg_send_query(3) and pg_get_result(3) to get  the
       result handle.

	If  you  need  to get additional error information from failed pg_query(3) queries, use pg_set_error_verbosity(3) and pg_last_error(3) and
       then parse the result.

PARAMETERS

	      o $result
		- A PostgreSQL query result resource from a previously executed statement.

	      o $fieldcode
		- Possible $fieldcode values are: PGSQL_DIAG_SEVERITY, PGSQL_DIAG_SQLSTATE, PGSQL_DIAG_MESSAGE_PRIMARY, PGSQL_DIAG_MESSAGE_DETAIL,
		PGSQL_DIAG_MESSAGE_HINT,  PGSQL_DIAG_STATEMENT_POSITION,  PGSQL_DIAG_INTERNAL_POSITION	(PostgreSQL  8.0+ only), PGSQL_DIAG_INTER-
		NAL_QUERY (PostgreSQL 8.0+ only), PGSQL_DIAG_CONTEXT, PGSQL_DIAG_SOURCE_FILE,  PGSQL_DIAG_SOURCE_LINE  or  PGSQL_DIAG_SOURCE_FUNC-
		TION.

RETURN VALUES

       A string containing the contents of the error field, NULL if the field does not exist or FALSE on failure.

EXAMPLES

       Example #1

	      pg_result_error_field(3) example

	      <?php
		$dbconn = pg_connect("dbname=publisher") or die("Could not connect");

		if (!pg_connection_busy($dbconn)) {
		    pg_send_query($dbconn, "select * from doesnotexist;");
		}

		$res1 = pg_get_result($dbconn);
		echo pg_result_error_field($res1, PGSQL_DIAG_SQLSTATE);
	      ?>

SEE ALSO

       pg_result_error(3).

PHP Documentation Group 												  PG_RESULT_ERROR_FIELD(3)

PG_SEND_PREPARE(3)														PG_SEND_PREPARE(3)

pg_send_prepare - Sends a request to create a prepared statement with the given parameters, without waiting for completion.

SYNOPSIS

       bool pg_send_prepare (resource  $connection, string  $stmtname, string  $query)

DESCRIPTION

	Sends a request to create a prepared statement with the given parameters, without waiting for completion.

	This  is  an asynchronous version of pg_prepare(3): it returns TRUE if it was able to dispatch the request, and FALSE if not. After a suc-
       cessful call, call pg_get_result(3) to determine whether the server successfully created the prepared statement. The function's	parameters
       are handled identically to pg_prepare(3). Like pg_prepare(3), it will not work on pre-7.4 versions of PostgreSQL.

PARAMETERS

	      o $connection
		- PostgreSQL database connection resource. When $connection is not present, the default connection is used. The default connection
		is the last connection made by pg_connect(3) or pg_pconnect(3).

	      o $stmtname
		- The name to give the prepared statement. Must be unique per-connection. If "" is specified, then an unnamed  statement  is  cre-
		ated, overwriting any previously defined unnamed statement.

	      o $query
		-  The	parameterized  SQL  statement. Must contain only a single statement. (multiple statements separated by semi-colons are not
		allowed.) If any parameters are used, they are referred to as $1, $2, etc.

RETURN VALUES

       Returns TRUE on success, FALSE on failure. Use pg_get_result(3) to determine the query result.

EXAMPLES

       Example #1

	      Using pg_send_prepare(3)

	      <?php
		$dbconn = pg_connect("dbname=publisher") or die("Could not connect");

		// Prepare a query for execution
		if (!pg_connection_busy($dbconn)) {
		  pg_send_prepare($dbconn, "my_query", 'SELECT * FROM shops WHERE name = $1');
		  $res1 = pg_get_result($dbconn);
		}

		// Execute the prepared query.	Note that it is not necessary to escape
		// the string "Joe's Widgets" in any way
		if (!pg_connection_busy($dbconn)) {
		  pg_send_execute($dbconn, "my_query", array("Joe's Widgets"));
		  $res2 = pg_get_result($dbconn);
		}

		// Execute the same prepared query, this time with a different parameter
		if (!pg_connection_busy($dbconn)) {
		  pg_send_execute($dbconn, "my_query", array("Clothes Clothes Clothes"));
		  $res3 = pg_get_result($dbconn);
		}

	      ?>

SEE ALSO

       pg_connect(3), pg_pconnect(3), pg_execute(3), pg_send_execute(3), pg_send_query_params(3).

PHP Documentation Group 													PG_SEND_PREPARE(3)