Exemples pratiques de la mise en œuvre de la traversée du répertoire en combinant Chdir (), OpenDir () et ReadDir ()

<span><span><span class="hljs-meta">&lt;?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，Faites juste un exemple</span></span><span>
</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"PHP Exemple de traversée de répertoire commence&lt;br&gt;"</span></span><span>;
</span><span><span class="hljs-meta">?&gt;</span></span><span>

&lt;hr&gt;

</span><span><span class="hljs-meta">&lt;?php</span></span><span>
<span class="hljs-comment">/**
 * Combiné chdir()、opendir() et readdir() Exemples pratiques de la mise en œuvre de la traversée du répertoire
 *
 * exister PHP milieu，操作documentetTable des matières是常见需求，Surtout quand vous devez traverser le répertoire。
 * chdir() Vous pouvez modifier le répertoire de travail actuel，opendir() Utilisé pour ouvrir une poignée de répertoire，
 * readdir() 用于逐个读取Table des matièresmilieu的document或子Table des matières。
 *
 * Cet article passera un exemple，演示如何Combiné这三个函数实现Table des matières的遍历。
 */</span>

</span><span><span class="hljs-function"><span class="hljs-keyword">function</span></span></span><span> </span><span><span class="hljs-title">traverseDir</span></span><span>(</span><span><span class="hljs-params"><span class="hljs-variable">$path</span></span></span><span>) {
    </span><span><span class="hljs-comment">// Essayez d&#39;abord de changer le répertoire de travail</span></span><span>
    </span><span><span class="hljs-keyword">if</span></span><span> (!</span><span><span class="hljs-title function_ invoke__">chdir</span></span><span>(</span><span><span class="hljs-variable">$path</span></span><span>)) {
        </span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"Impossible de passer au répertoire：<span class="hljs-subst">$path</span></span></span><span>&lt;br&gt;";
        </span><span><span class="hljs-keyword">return</span></span><span>;
    }
    
    </span><span><span class="hljs-comment">// Ouvrez le répertoire actuel</span></span><span>
    </span><span><span class="hljs-variable">$handle</span></span><span> = </span><span><span class="hljs-title function_ invoke__">opendir</span></span><span>(</span><span><span class="hljs-string">'.'</span></span><span>);
    </span><span><span class="hljs-keyword">if</span></span><span> (</span><span><span class="hljs-variable">$handle</span></span><span> === </span><span><span class="hljs-literal">false</span></span><span>) {
        </span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"Impossible d&#39;ouvrir la poignée du répertoire&lt;br&gt;"</span></span><span>;
        </span><span><span class="hljs-keyword">return</span></span><span>;
    }
    
    </span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"Répertoire actuel： "</span></span><span> . </span><span><span class="hljs-title function_ invoke__">getcwd</span></span><span>() . </span><span><span class="hljs-string">"&lt;br&gt;"</span></span><span>;
    </span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"Le contenu du répertoire est le suivant：&lt;br&gt;"</span></span><span>;
    
    </span><span><span class="hljs-comment">// 遍历Table des matièresmilieu的documentetdocument夹</span></span><span>
    </span><span><span class="hljs-keyword">while</span></span><span> ((</span><span><span class="hljs-variable">$entry</span></span><span> = </span><span><span class="hljs-title function_ invoke__">readdir</span></span><span>(</span><span><span class="hljs-variable">$handle</span></span><span>)) !== </span><span><span class="hljs-literal">false</span></span><span>) {
        </span><span><span class="hljs-comment">// Ignorer les répertoires spéciaux . et ..</span></span><span>
        </span><span><span class="hljs-keyword">if</span></span><span> (</span><span><span class="hljs-variable">$entry</span></span><span> === </span><span><span class="hljs-string">'.'</span></span><span> || </span><span><span class="hljs-variable">$entry</span></span><span> === </span><span><span class="hljs-string">'..'</span></span><span>) {
            </span><span><span class="hljs-keyword">continue</span></span><span>;
        }
        
        </span><span><span class="hljs-keyword">if</span></span><span> (</span><span><span class="hljs-title function_ invoke__">is_dir</span></span><span>(</span><span><span class="hljs-variable">$entry</span></span><span>)) {
            </span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"[Table des matières] <span class="hljs-subst">$entry</span></span></span><span>&lt;br&gt;";
        } </span><span><span class="hljs-keyword">else</span></span><span> {
            </span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"[document] <span class="hljs-subst">$entry</span></span></span><span>&lt;br&gt;";
        }
    }
    
    </span><span><span class="hljs-title function_ invoke__">closedir</span></span><span>(</span><span><span class="hljs-variable">$handle</span></span><span>);
}

</span><span><span class="hljs-comment">// Exemple d&#39;appel：Supposons qu&#39;il y ait un test_dir Table des matières</span></span><span>
</span><span><span class="hljs-variable">$testPath</span></span><span> = </span><span><span class="hljs-string">'test_dir'</span></span><span>;
</span><span><span class="hljs-title function_ invoke__">traverseDir</span></span><span>(</span><span><span class="hljs-variable">$testPath</span></span><span>);
</span></span>