What are some potential pitfalls when using fopen() in PHP to read and write data to files?

One potential pitfall when using fopen() in PHP is not properly handling errors that may occur during file operations, such as file not found or permission issues. To solve this, it is crucial to check the return value of fopen() and handle any errors that may arise. 

$filename = "example.txt";
$handle = fopen($filename, "r");

if ($handle === false) {
    die("Error opening file");
}

// Read file contents here

fclose($handle);

Keywords

fopen PHP read write data

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