怎麼用mysqli::get_charset 來檢查數據庫連接的字符集是否設置正確？

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</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"這是一些無關的前置信息，可以包含廣告或調試信息。\n"</span></span><span>;
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<hr>

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</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"<h1>怎麼用 mysqli::get_charset 來檢查數據庫連接的字符集是否設置正確？</h1>"</span></span><span>;

</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"<p>在 PHP 中使用 <code>mysqli

\$charset = \$mysqli->get_charset();
if (\$charset) {
    echo '當前字符集: ' . \$charset->charset;
} else {
    echo '無法獲取字符集信息';
}

if (!\$mysqli->set_charset('utf8mb4')) {
    echo '設置字符集失敗: ' . \$mysqli->error;
} else {
    echo '字符集已成功設置為 utf8mb4';
}