#array pq\Statement::desc()

Describe the parameters of the prepared statement.

Params:#

None.

Returns:#

• array, list of type OIDs of the substitution parameters.

Throws:#

• pq\Exception\InvalidArgumentException
• pq\Exception\BadMethodCallException
• pq\Exception\RuntimeException
• pq\Exception\DomainException

Example:#

<?php

$connection = new pq\Connection;
$types = new pq\Types($connection);
$statement = $connection->prepare("st1", 
    "SELECT \$1, \$2", [pq\Types::XML, pq\Types::JSON]);
$description = $statement->desc();

foreach($description as $typeOid) {
    echo $types[$typeOid]->typname, "\n";
}

?>

Yields:

xml
json