File_Size() and Display_form Functions - PHP

We can find many articles related to uploading, viewing, and downloading files. This article is written on the basic concept of uploading and managing files. File uploading is the process of copying the file from your machine to the remote server. Other users of the same system then share this file by viewing or downloading it. What happens when you upload a file that already exists in the remote folder to which you are uploading?

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By: Murali Dharan.M

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March 29, 2004

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TOOLS YOU CAN USE

File_Size() Function:
This function returns the file size in terms of Bytes, Kb or Mb.

<? function File_Size($size) { if($size > 104876){ return $return_size=sprintf("%01.2f",$size / 1048576)." Mb"; }elseif($size > 1024){ return $return_size=sprintf("%01.2f",$size / 1024)." Kb"; }else{ return $return_size=$size." Bytes"; } } ? >

Display_form() Function:
This function is used to prompt the user to select the file from your local machine.

<? function display_form($errMsg){ global $dir_path; ? > <html> <head><title>File Manager</title></head> <body bgcolor="#E5E5E5"> <div align="center"> <h4>File Manager</h4> <? if($errMsg){ ? ><font face="verdana, helvetica" size="2" color="red"><? echo $errMsg ? ></font> <? } ? > <form action="<? echo $PHP_SELF; ? >" enctype="multipart/form-data" method="POST"> <table border="1"> <tr><th>File Location:</th><th><input type="file" name="up_file" /></th></tr> <tr><th colspan="2"><br><input type="checkbox" name="replace" value="1">Replace Exiting File*</th></tr> <tr><th colspan="2"><br><input type="submit" name="upload" value="Upload File !" /></th></tr> </table> <br>* - Clicking this option will replace the existing file <br><a href="file_display_manager.php">File Manager</a> <br><? if ($status){ echo "Result :".$status; }? > <p><br><b>Folder Location:</b><? echo $dir_path ? > <br>You can change this location by editing the file</font> </form> </div> </body> </html> <? } ? >