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Check whether the instance pointed by OID exists


cubrid_is_instance

(PECL CUBRID >= 8.3.0)

cubrid_is_instanceCheck whether the instance pointed by OID exists

Description

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.

Return Values

1, if such instance exists;

0, if such instance does not exist;

-1, in case of error

Examples

Example #1 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$sqlCUBRID_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. 

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