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Differences and Choices Between ftp_fput and ftp_put: Which One Fits Your Needs Better?

gitbox 2025-09-15 
<span><span><span class="hljs-meta"><?php</span></span><span>
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</span><span><span class="hljs-comment">// Author: Example Author</span></span><span>
</span><span><span class="hljs-comment">// Date: 2025-08-27</span></span><span>
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<p><h1>Differences and Choices Between ftp_fput and ftp_put: Which One Fits Your Needs Better?</h1></p>
<p><p>When working with FTP files in PHP, you will often encounter <code>ftp_put

As you can see, the main difference lies in the third parameter: ftp_put takes a file path, while ftp_fput takes a file handle.

3. Use Cases

  • ftp_put: Best suited for scenarios where the file already exists on disk and you want to upload it directly. The code is simple and convenient to use.
  • ftp_fput: Useful when you need to dynamically process the file content or generate the file before uploading. For example, you may want to compress, encrypt, or generate content in memory without saving it to disk first.

4. Performance and Memory Considerations

If the file is large:

  • Using ftp_put will read the entire file at once, which may consume a lot of memory.
  • Using ftp_fput allows you to stream the file content in chunks, reducing memory usage.

5. Example Code

ftp_put Example

</span><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>);
<p></span><span><span>$localFile</span></span><span> = </span><span><span>"local.txt"</span></span><span>;<br>
</span><span><span>$remoteFile</span></span><span> = </span><span><span>"remote.txt"</span></span><span>;</p>
<p></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>$localFile</span></span><span>, FTP_BINARY)) {<br>
</span><span><span>echo</span></span><span> </span><span><span>"File uploaded successfully!"</span></span><span>;<br>
} </span><span><span>else</span></span><span> {<br>
</span><span><span>echo</span></span><span> </span><span><span>"File upload failed!"</span></span><span>;<br>
}</p>
<p></span><span><span class="function_ invoke__">ftp_close</span></span><span>(</span><span><span>$ftp</span></span><span>);<br>

ftp_fput Example

</span><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>);
<p></span><span><span>$localFile</span></span><span> = </span><span><span>"local.txt"</span></span><span>;<br>
</span><span><span>$handle</span></span><span> = </span><span><span class="function_ invoke__">fopen</span></span><span>(</span><span><span>$localFile</span></span><span>, </span><span><span>"r"</span></span><span>);<br>
</span><span><span>$remoteFile</span></span><span> = </span><span><span>"remote.txt"</span></span><span>;</p>
<p></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>$handle</span></span><span>, FTP_BINARY)) {<br>
</span><span><span>echo</span></span><span> </span><span><span>"File uploaded successfully!"</span></span><span>;<br>
} </span><span><span>else</span></span><span> {<br>
</span><span><span>echo</span></span><span> </span><span><span>"File upload failed!"</span></span><span>;<br>
}</p>
<p></span><span><span class="function_ invoke__">fclose</span></span><span>(</span><span><span>$handle</span></span><span>);<br>
</span><span><span class="function_ invoke__">ftp_close</span></span><span>(</span><span><span>$ftp</span></span><span>);<br>

6. Conclusion

In short:

  • If you already have an existing file, ftp_put is the most straightforward choice.
  • If the file content needs to be processed dynamically, or if you want more flexible control over the upload process, ftp_fput is more suitable.

Understanding the differences and use cases between the two will help you handle FTP upload tasks more efficiently in PHP development.

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