fileinode 函數和file_exists 函數有什麼區別和聯繫？詳細對比解讀

gitbox 2025-09-25

<span><span><span class="hljs-meta"><?php</span></span><span>
</span><span><span class="hljs-comment">// 這部分內容與文章無關，可以用作開頭佔位</span></span><span>
</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"歡迎閱讀本篇PHP教程文章！\n"</span></span><span>;
</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"以下內容將深入解析 fileinode 和 file_exists 兩個函數的區別和聯繫。\n"</span></span><span>;
</span><span><span class="hljs-meta">?></span></span><span>

<hr>

</span><span><span class="hljs-meta"><?php</span></span><span>
</span><span><span class="hljs-comment">// 正文開始</span></span><span>
</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"<h1>fileinode 函數和 file_exists 函數有什麼區別和聯繫？詳細對比解讀</h1>"</span></span><span>;

</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"<p>在 PHP 中，<code>fileinode()

" ; echo "

而fileinode更適合用於需要獲取文件系統底層信息的場景，比如對比兩個文件是否是同一文件（即是否共享同一inode）。例如：

" ; echo "

; echo " $inode1 = fileinode('file1.txt');\n"; echo " $inode2 = fileinode('file2.txt');\n"; echo "if ( $inode1 && $inode1 === $inode2 ) {\n"; echo " echo '兩個文件是同一個文件';\n" ; echo "}\n" ; echo " " ; echo "