ftp_fput 與ftp_put 的區別與選擇：哪個更適合你的需求？

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<h1>ftp_fput 與 ftp_put 的区别與选择：哪個更適合你的需求？</h1>

<p>在 PHP 中操作 FTP 文件時，常常會遇到 <code>ftp_put

可以看出，主要區別在於第三個參數： ftp_put接收文件路徑，而ftp_fput接收文件句柄。

3 . 使用場景

• ftp_put：適用於文件已經存在於磁盤上，直接上傳完整文件的場景。代碼簡單，使用方便。
• ftp_fput：適用於需要對文件內容進行動態處理或者生成文件內容後再上傳的場景。例如，你可能希望在上傳之前對數據進行壓縮、加密或者從內存中生成內容而不存儲在磁盤上。

4 . 性能與內存考慮

如果文件很大：

• 使用ftp_put會直接讀取整個文件，可能消耗較多內存。
• 使用ftp_fput可以通過流式處理文件內容，逐塊讀取上傳，內存佔用更小。

5 . 示例代碼

ftp_put 示例

<span><span>$ftp</span></span> <span>=</span> <span><span class="function_ invoke__">ftp_connect</span></span> <span>(</span> <span><span>"ftp.example.com"</span></span> <span>);
</span><span><span class="function_ invoke__">ftp_login</span></span> <span>(</span> <span><span>$ftp</span></span> <span>,</span> <span><span>"username"</span></span> <span>,</span> <span><span>"password"</span></span> <span>);

</span><span><span>$localFile</span></span> <span>=</span> <span><span>"local.txt"</span></span> <span>;
</span><span><span>$remoteFile</span></span> <span>=</span> <span><span>"remote.txt"</span></span> <span>;

</span><span><span>if</span></span> <span>(</span> <span><span class="function_ invoke__">ftp_put</span></span> <span>(</span> <span><span>$ftp</span></span> <span>,</span> <span><span>$remoteFile</span></span> <span>,</span> <span><span>$localFile</span></span> <span>, FTP_BINARY)) {
    </span><span><span>echo</span></span><span> </span><span><span>"文件上傳成功！"</span></span> <span>;
}</span> <span><span>else</span></span> <span>{
    </span><span><span>echo</span></span><span> </span><span><span>"文件上傳失敗！"</span></span> <span>;
}

</span><span><span class="function_ invoke__">ftp_close</span></span> <span>(</span> <span><span>$ftp</span></span> <span>);
</span><h3>ftp_fput 示例</h3><pre>
<span><span>$ftp</span></span> <span>=</span> <span><span class="function_ invoke__">ftp_connect</span></span> <span>(</span> <span><span>"ftp.example.com"</span></span> <span>);
</span><span><span class="function_ invoke__">ftp_login</span></span> <span>(</span> <span><span>$ftp</span></span> <span>,</span> <span><span>"username"</span></span> <span>,</span> <span><span>"password"</span></span> <span>);

</span><span><span>$localFile</span></span> <span>=</span> <span><span>"local.txt"</span></span> <span>;
</span><span><span>$handle</span></span> <span>=</span> <span><span class="function_ invoke__">fopen</span></span> <span>(</span> <span><span>$localFile</span></span> <span>,</span> <span><span>"r"</span></span> <span>);
</span><span><span>$remoteFile</span></span> <span>=</span> <span><span>"remote.txt"</span></span> <span>;

</span><span><span>if</span></span> <span>(</span> <span><span class="function_ invoke__">ftp_fput</span></span> <span>(</span> <span><span>$ftp</span></span> <span>,</span> <span><span>$remoteFile</span></span> <span>,</span> <span><span>$handle</span></span> <span>, FTP_BINARY)) {
    </span><span><span>echo</span></span><span> </span><span><span>"文件上傳成功！"</span></span> <span>;
}</span> <span><span>else</span></span> <span>{
    </span><span><span>echo</span></span><span> </span><span><span>"文件上傳失敗！"</span></span> <span>;
}

</span><span><span class="function_ invoke__">fclose</span></span> <span>(</span> <span><span>$handle</span></span> <span>);
</span><span><span class="function_ invoke__">ftp_close</span></span> <span>(</span> <span><span>$ftp</span></span> <span>);
</span><h2><span><span>6</span></span> <span>. 總結</span><p>簡單來說：</p><ul><li>如果你有現成的文件， <span class="fun"><a href="/zh-tw/php/ftp_put.html" target="_blank">ftp_put</a></span>是最直接的選擇。</li><li>如果文件內容需要動態處理，或者希望更靈活地控制上傳過程， <span class="fun">ftp_fput</span>更合適。</li></ul><p>理解兩者的區別和適用場景可以幫助你在PHP 開發中更高效地處理FTP 上傳任務。</p></div></div>