(PECL CUBRID >= 8.3.0)
Check whether the instance pointed by OID exists
int cubrid_is_instance ( resource $conn_identifier, string $oid )
The cubrid_is_instance() function is used to check whether the instance pointed by the given oid
exists or not.
Parameters:
conn_identifier
Connection identifier.
oid
OID of the instance that you want to check the existence.
Returns:
1, if such instance exists;
0, if such instance does not exist;
-1, in case of error
Examples:
cubrid_is_instance() example
<?php $conn = cubrid_connect("localhost", 33000, "demodb"); $sql = <<<EOD SELECT host_year, medal, game_date FROM game WHERE athlete_code IN (SELECT code FROM athlete WHERE name='Thorpe Ian'); EOD; $req = cubrid_execute($conn, $sql, CUBRID_INCLUDE_OID); $oid = cubrid_current_oid($req); $res = cubrid_is_instance ($conn, $oid); if ($res == 1) { echo "Instance pointed by $oid exists.\n"; } else if ($res == 0){ echo "Instance pointed by $oid doesn't exist.\n"; } else { echo "error\n"; } cubrid_disconnect($conn); ?>
The above example will output:
Instance pointed by @0|0|0 doesn't exist.
See also:
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