What are potential pitfalls when using the fopen function in PHP to create a file?

One potential pitfall when using the fopen function in PHP to create a file is not handling errors properly. If the file creation fails, the function will return false, but this may not be immediately obvious without proper error checking. To solve this, you should always check the return value of fopen and handle any errors accordingly, such as by displaying an error message or logging the issue. 

$filename = 'example.txt';
$file = fopen($filename, 'w');

if ($file === false) {
    die('Failed to open/create file');
}

// continue with writing to the file

Keywords

fopen PHP file creation error handling permissions

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