What could be the potential issue causing the files to be empty after the save operation in PHP?

The potential issue causing the files to be empty after the save operation in PHP could be that the file is not being properly opened in write mode before writing to it. To solve this issue, make sure to open the file in write mode ("w" or "w+") before writing to it. 

$file = 'example.txt';
$data = 'Hello, World!';

$handle = fopen($file, 'w'); // Open the file in write mode
fwrite($handle, $data); // Write data to the file
fclose($handle); // Close the file

Keywords

file handling fwrite file permissions error handling debugging

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