怎么取消mysqli报错

display_errors = Off
error_reporting = E_ALL & ~E_NOTICE & ~E_DEPRECATED

ini_set('display_errors', 'Off');
error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED);

<?php
$mysqli = new mysqli("localhost", "username", "password", "database");

if ($mysqli->connect_errno) {
    echo "Failed to connect to MySQL: " . $mysqli->connect_error;
    exit();
}

try {
    // 执行SQL查询
    if ($result = $mysqli->query("SELECT * FROM table_name")) {
        // 处理查询结果
        while ($row = $result->fetch_assoc()) {
            // 处理每一行数据
        }
        $result->free();
    } else {
        throw new Exception("Query failed: " . $mysqli->error);
    }
} catch (Exception $e) {
    echo "Error: " . $e->getMessage();
}

$mysqli->close();
?>

<?php
$mysqli = new mysqli("localhost", "username", "password", "database");

if ($mysqli->connect_errno) {
    echo "Failed to connect to MySQL: " . $mysqli->connect_error;
    exit();
}

if (!$mysqli->query("SELECT * FROM table_name")) {
    echo "Query failed: " . $mysqli->error;
}

$mysqli->close();
?>

<?php
try {
    $pdo = new PDO("mysql:host=localhost;dbname=database", "username", "password");
    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

    $stmt = $pdo->query("SELECT * FROM table_name");
    while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
        // 处理每一行数据
    }
} catch (PDOException $e) {
    echo "Error: " . $e->getMessage();
}

$pdo = null;
?>