実用的なチュートリアル：PathInfoを使用して、一時的なフォルダーで役に立たないファイルをクリーンにバッチ

gitbox 2025-08-17
<span><span><span class="hljs-meta">&lt;?php</span></span><span>
</span><span><span class="hljs-comment">// これは、体と関係のない事前コードの例です</span></span><span>
</span><span><span class="hljs-title function_ invoke__">date_default_timezone_set</span></span><span>(</span><span><span class="hljs-string">'Asia/Shanghai'</span></span><span>);
</span><span><span class="hljs-title function_ invoke__">header</span></span><span>(</span><span><span class="hljs-string">'Content-Type: text/html; charset=utf-8'</span></span><span>);
</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"&lt;h1&gt;実使用のなチュートリアルが準備されています...&lt;/h1&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><span><span class="hljs-comment">// テキストを開始します：実使用のなチュートリアル：使用 pathinfo 批量清理临时文件夹里の无使用文件</span></span><span>

<span class="hljs-comment">/**
 * 本文档将展示如何利使用 PHP の pathinfo 関数，批量清理临时文件夹中无使用文件。
 * 主なアイデアは、ファイルの接尾辞名を判断することです、ファイルの作成時間やファイルサイズなどの条件，过滤出无使用文件并删除。
 */</span>

</span><span><span class="hljs-variable">$tempDir</span></span><span> = </span><span><span class="hljs-keyword">__DIR__</span></span><span> . </span><span><span class="hljs-string">'/temp'</span></span><span>;  </span><span><span class="hljs-comment">// 一時的なフォルダーパス，実際の状況に従って調整してください</span></span><span>

</span><span><span class="hljs-comment">// 清掃基準を設定します：たとえば、以上を削除します7天未修改の临时文件，且后缀不是我们需要保留の格式</span></span><span>
</span><span><span class="hljs-variable">$expireDays</span></span><span> = </span><span><span class="hljs-number">7</span></span><span>;
</span><span><span class="hljs-variable">$now</span></span><span> = </span><span><span class="hljs-title function_ invoke__">time</span></span><span>();
</span><span><span class="hljs-variable">$keepExtensions</span></span><span> = [</span><span><span class="hljs-string">'tmp'</span></span><span>, </span><span><span class="hljs-string">'log'</span></span><span>, </span><span><span class="hljs-string">'bak'</span></span><span>];  </span><span><span class="hljs-comment">// 假设这些是无使用文件类型</span></span><span>

</span><span><span class="hljs-comment">// ディレクトリが存在するかどうかを確認します</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">$tempDir</span></span><span>)) {
    </span><span><span class="hljs-keyword">die</span></span><span>(</span><span><span class="hljs-string">"一時的なフォルダーは存在しません：<span class="hljs-subst">$tempDir</span></span></span><span>");
}

</span><span><span class="hljs-variable">$files</span></span><span> = </span><span><span class="hljs-title function_ invoke__">scandir</span></span><span>(</span><span><span class="hljs-variable">$tempDir</span></span><span>);
</span><span><span class="hljs-variable">$deletedCount</span></span><span> = </span><span><span class="hljs-number">0</span></span><span>;

</span><span><span class="hljs-keyword">foreach</span></span><span> (</span><span><span class="hljs-variable">$files</span></span><span> </span><span><span class="hljs-keyword">as</span></span><span> </span><span><span class="hljs-variable">$file</span></span><span>) {
    </span><span><span class="hljs-keyword">if</span></span><span> (</span><span><span class="hljs-variable">$file</span></span><span> === </span><span><span class="hljs-string">'.'</span></span><span> || </span><span><span class="hljs-variable">$file</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-comment">// 特別ディレクトリをスキップします</span></span><span>

    </span><span><span class="hljs-variable">$filePath</span></span><span> = </span><span><span class="hljs-variable">$tempDir</span></span><span> . DIRECTORY_SEPARATOR . </span><span><span class="hljs-variable">$file</span></span><span>;

    </span><span><span class="hljs-keyword">if</span></span><span> (</span><span><span class="hljs-title function_ invoke__">is_file</span></span><span>(</span><span><span class="hljs-variable">$filePath</span></span><span>)) {
        </span><span><span class="hljs-variable">$info</span></span><span> = </span><span><span class="hljs-title function_ invoke__">pathinfo</span></span><span>(</span><span><span class="hljs-variable">$filePath</span></span><span>);

        </span><span><span class="hljs-comment">// 判断文件后缀是否属于无使用文件类型</span></span><span>
        </span><span><span class="hljs-variable">$extension</span></span><span> = </span><span><span class="hljs-keyword">isset</span></span><span>(</span><span><span class="hljs-variable">$info</span></span><span>[</span><span><span class="hljs-string">'extension'</span></span><span>]) ? </span><span><span class="hljs-title function_ invoke__">strtolower</span></span><span>(</span><span><span class="hljs-variable">$info</span></span><span>[</span><span><span class="hljs-string">'extension'</span></span><span>]) : </span><span><span class="hljs-string">''</span></span><span>;
        </span><span><span class="hljs-keyword">if</span></span><span> (</span><span><span class="hljs-title function_ invoke__">in_array</span></span><span>(</span><span><span class="hljs-variable">$extension</span></span><span>, </span><span><span class="hljs-variable">$keepExtensions</span></span><span>)) {
            </span><span><span class="hljs-comment">// ファイルの変更の最後の時間を取得します</span></span><span>
            </span><span><span class="hljs-variable">$fileMTime</span></span><span> = </span><span><span class="hljs-title function_ invoke__">filemtime</span></span><span>(</span><span><span class="hljs-variable">$filePath</span></span><span>);

            </span><span><span class="hljs-comment">// ファイルの有効期限が切れるかどうかを判断します</span></span><span>
            </span><span><span class="hljs-keyword">if</span></span><span> (</span><span><span class="hljs-variable">$fileMTime</span></span><span> !== </span><span><span class="hljs-literal">false</span></span><span> &amp;&amp; (</span><span><span class="hljs-variable">$now</span></span><span> - </span><span><span class="hljs-variable">$fileMTime</span></span><span>) &gt; </span><span><span class="hljs-variable">$expireDays</span></span><span> * </span><span><span class="hljs-number">86400</span></span><span>) {
                </span><span><span class="hljs-comment">// ファイルを削除します</span></span><span>
                </span><span><span class="hljs-keyword">if</span></span><span> (</span><span><span class="hljs-title function_ invoke__">unlink</span></span><span>(</span><span><span class="hljs-variable">$filePath</span></span><span>)) {
                    </span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"已ファイルを削除します: <span class="hljs-subst">{$file}</span></span></span><span> &lt;br&gt;";
                    </span><span><span class="hljs-variable">$deletedCount</span></span><span>++;
                } </span><span><span class="hljs-keyword">else</span></span><span> {
                    </span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"削除が失敗しました: <span class="hljs-subst">{$file}</span></span></span><span> &lt;br&gt;";
                }
            }
        }
    }
}

</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"&lt;hr&gt;"</span></span><span>;
</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"クリーニングは完了しています，合計で削除します <span class="hljs-subst">{$deletedCount}</span></span></span><span> ファイル。";

</span><span><span class="hljs-meta">?&gt;</span></span><span>
</span></span>
pathinfo