Are there any potential pitfalls when using the fread function in PHP to read a file?

One potential pitfall when using the fread function in PHP is not properly handling errors or checking for the end of the file. This can lead to unexpected behavior or errors in your code. To solve this, you should always check the return value of fread to ensure that it has read the expected number of bytes and handle any errors that may occur. 

$file = fopen("example.txt", "r");
if ($file) {
    while (!feof($file)) {
        $data = fread($file, 1024);
        if ($data === false) {
            echo "Error reading file";
            break;
        }
        // Process the data read from the file
    }
    fclose($file);
} else {
    echo "Error opening file";
}

Keywords

fread PHP file reading errors buffer size

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