Comment générer automatiquement des en-têtes de table HTML à l'aide de mysqli_result :: fetch_field pour améliorer l'effet d'affichage frontal?

<span><span><span class="hljs-meta"><?php</span></span><span>
</span><span><span class="hljs-comment">// Cette partie du code n&#39;a rien à voir avec le contenu de l&#39;article，Initialiser comme un environnement d&#39;échantillon uniquement</span></span><span>
</span><span><span class="hljs-variable">$servername</span></span><span> = </span><span><span class="hljs-string">"localhost"</span></span><span>;
</span><span><span class="hljs-variable">$username</span></span><span> = </span><span><span class="hljs-string">"root"</span></span><span>;
</span><span><span class="hljs-variable">$password</span></span><span> = </span><span><span class="hljs-string">""</span></span><span>;
</span><span><span class="hljs-variable">$dbname</span></span><span> = </span><span><span class="hljs-string">"test_db"</span></span><span>;

</span><span><span class="hljs-variable">$conn</span></span><span> = </span><span><span class="hljs-keyword">new</span></span><span> </span><span><span class="hljs-title function_ invoke__">mysqli</span></span><span>(</span><span><span class="hljs-variable">$servername</span></span><span>, </span><span><span class="hljs-variable">$username</span></span><span>, </span><span><span class="hljs-variable">$password</span></span><span>, </span><span><span class="hljs-variable">$dbname</span></span><span>);
</span><span><span class="hljs-keyword">if</span></span><span> (</span><span><span class="hljs-variable">$conn</span></span><span>->connect_error) {
    </span><span><span class="hljs-keyword">die</span></span><span>(</span><span><span class="hljs-string">"Échec de la connexion: "</span></span><span> . </span><span><span class="hljs-variable">$conn</span></span><span>->connect_error);
}
</span><span><span class="hljs-meta">?></span></span><span>

<hr>

<h2>Comment l&#39;utiliser <code>mysqli_result::</span><span><span class="hljs-variable constant_">fetch_field</span></span><span>

Résumer

L'obtention automatique des informations sur le champ via la méthode MySQLI_RESULT :: fetch_field () peut générer automatiquement des en-têtes de table HTML flexibles et dynamiques, en évitant les difficultés de maintenance causées par des noms de champ codés en dur. Combinée à la sortie de la boucle de données, l'effet d'affichage de la page frontale est plus beau et adaptable, ce qui est une technique très pratique en développement.