0 = PGSQL_EMPTY_QUERY
1 = PGSQL_COMMAND_OK
2 = PGSQL_TUPLES_OK
3 = PGSQL_COPY_TO
4 = PGSQL_COPY_FROM
5 = PGSQL_BAD_RESPONSE
6 = PGSQL_NONFATAL_ERROR
7 = PGSQL_FATAL_ERROR
(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)
pg_result_status — 获得查询结果的状态
pg_result_status() 返回 PgSql\Result 实例的状态,或者与 result 相关的 PostgreSQL 命令完成标记。
result
PgSql\Result 实例,由 pg_query()、pg_query_params() 或者 pg_execute()(等)返回。
mode
要么指定 PGSQL_STATUS_LONG
返回 result
的数字状态,要么指定 PGSQL_STATUS_STRING
返回 result
的命令标记。如果未指定,默认是 PGSQL_STATUS_LONG
。
如果指定 PGSQL_STATUS_LONG
,可能返回的值是
PGSQL_EMPTY_QUERY
、PGSQL_COMMAND_OK
、PGSQL_TUPLES_OK
、PGSQL_COPY_OUT
、PGSQL_COPY_IN
、PGSQL_BAD_RESPONSE
、PGSQL_NONFATAL_ERROR
和 PGSQL_FATAL_ERROR
。否则,返回包含 PostgreSQL 命令标记的 string。
版本 | 说明 |
---|---|
8.1.0 |
现在 result 参数接受 PgSql\Result
实例,之前接受 resource。
|
示例 #1 pg_result_status() 示例
<?php
// Connect to the database
$conn = pg_pconnect("dbname=publisher");
// Execute a COPY
$result = pg_query($conn, "COPY authors FROM STDIN;");
// Get the result status
$status = pg_result_status($result);
// Determine status
if ($status == PGSQL_COPY_IN)
echo "Copy began.";
else
echo "Copy failed.";
?>
以上示例会输出:
Copy began.
0 = PGSQL_EMPTY_QUERY
1 = PGSQL_COMMAND_OK
2 = PGSQL_TUPLES_OK
3 = PGSQL_COPY_TO
4 = PGSQL_COPY_FROM
5 = PGSQL_BAD_RESPONSE
6 = PGSQL_NONFATAL_ERROR
7 = PGSQL_FATAL_ERROR
This function is useful it may not return a full non fatal error but you want to see if the query completes anyway.
example
<?PHP
//connect to pg database
// create PGSQL
$PGSTAT = pg_result_status($PGSQL);//defaults to long
//And run it through a check for example
if(($PGSTAT == 1) || ($PGSTAT == 2)){
// for query results;
}else if(($PGSTAT == 3) || ($PGSTAT == 4)){
// for copy results;
}
if(($PGSTAT != 0) && ($PGSTAT != 5) && ($PGSTAT != 6) && ($PGSTAT != 7)){
// your code;
}else{
// $ERRORS codes;
}
// This is worked the best for me so far I tried using
// The command tag and I seem to still get an numeric result
//example
//$PGSTAT = pg_result_status($PGSQL, PGSQL_COMMAND_OK);
// got something like tuples ok so I recommend just use default long
?>
or use what ever condition check you feel fit
If on "accident" your program passes pg_result_status a variable that is NOT a actual pg resource, it will return an empty string.
(This is important to know if you want to make sure a pg resource is "good" before attempting some operation on it).
The postgres docs say that PHP should never be able to return PGRES_NONFATAL_ERROR
"A result of status PGRES_NONFATAL_ERROR will never be returned directly by PQexec or other query execution functions" http://www.postgresql.org/docs/current/static/libpq-exec.html
Therefore you cannot use this function to check if this query produced a notice.