PHP Velho Oeste 2024

pg_result_error_field

(PHP 5 >= 5.1.0, PHP 7, PHP 8)

pg_result_error_fieldReturns an individual field of an error report

Açıklama

pg_result_error_field(PgSql\Result $result, int $field_code): string|false|null

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

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.

Bağımsız Değişkenler

result

pg_query(), pg_query_params() veya pg_execute() işlevinden dönen PgSql\Result nesnesi.

field_code

Possible field_code 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.

Dönen Değerler

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

Sürüm Bilgisi

Sürüm: Açıklama
8.1.0 sonuç bağımsız değişkeni artık PgSql\Result nesnesi kabul ediyor, evvelce bir özkaynak kabul ederdi.

Örnekler

Örnek 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($res1, PGSQL_DIAG_SQLSTATE);
?>

Ayrıca Bakınız

add a note

User Contributed Notes 1 note

up
0
dev at gwouite dot fr
6 months ago
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
To Top