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Pdo\Mysql::getWarningCount

(PHP 8 >= 8.4.0)

Pdo\Mysql::getWarningCount — Returns the number of warnings from the last executed query

Descrizione

public Pdo\Mysql::getWarningCount(): int

Returns the number of warnings from the last executed query.

Nota: For retrieving warning messages the following SQL command can be used: SHOW WARNINGS [limit row_count].

Elenco dei parametri

Questa funzione non contiene parametri.

Valori restituiti

Returns an int representing the number of warnings generated by the last query.

Esempi

Example #1 Pdo\Mysql::getWarningCount() example

<?php

$conn = PDO::connect("mysql:host=localhost;dbname=test;charset=utf8mb4", 'user', 'password');

$conn->query('SELECT 42/0');
if ($conn->getWarningCount() > 0) {
$result = $conn->query("SHOW WARNINGS");
$row = $result->fetch();
printf("%s (%d): %s\n", $row[0], $row[1], $row[2]);
}

?>

Il precedente esempio visualizzerà:

Warning (1365): Division by 0