pg_result_error_field

(PHP 5 >= 5.1.0)

pg_result_error_field — Returns an individual field of an error report.

Описание

string pg_result_error_field ( resource $result , int $fieldcode )

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

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

Список параметров

result

A PostgreSQL query result resource from a previously executed statement.

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_INTERNAL_QUERY (PostgreSQL 8.0+ only), PGSQL_DIAG_CONTEXT, PGSQL_DIAG_SOURCE_FILE, PGSQL_DIAG_SOURCE_LINE or PGSQL_DIAG_SOURCE_FUNCTION.

Возвращаемые значения

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

Примеры

Пример #1 pg_result_error_field() 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($res1PGSQL_DIAG_SQLSTATE);
?>

Смотрите также

Коментарии

Complete list of field codes from libpq documentation...

Warning : they are prefixed with "PG_", just change to "PGSQL_" and they'll be available as defined PHP values.

For me, most importants fields are suffixed with a star ;)

PG_DIAG_SEVERITY
PG_DIAG_SEVERITY_NONLOCALIZED  *
PG_DIAG_SQLSTATE  *
PG_DIAG_MESSAGE_PRIMARY
PG_DIAG_MESSAGE_DETAIL
PG_DIAG_MESSAGE_HINT
PG_DIAG_STATEMENT_POSITION
PG_DIAG_INTERNAL_POSITION
PG_DIAG_INTERNAL_QUERY
PG_DIAG_CONTEXT
PG_DIAG_SCHEMA_NAME  *
PG_DIAG_TABLE_NAME  *
PG_DIAG_COLUMN_NAME  *
PG_DIAG_DATATYPE_NAME  *
PG_DIAG_CONSTRAINT_NAME
PG_DIAG_SOURCE_FILE
PG_DIAG_SOURCE_LINE
PG_DIAG_SOURCE_FUNCTION

Source and field codes details : https://www.postgresql.org/docs/current/libpq-exec.html
2023-07-31 00:23:56
http://php5.kiev.ua/manual/ru/function.pg-result-error-field.html

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