How can a PHP developer troubleshoot and resolve the "failed to open stream" error when attempting to load a file via an absolute path?

The "failed to open stream" error typically occurs when the absolute path provided to load a file is incorrect or inaccessible. To resolve this issue, a PHP developer can ensure that the absolute path is correct and that the file permissions allow for reading. Additionally, using the PHP function file_exists() can help verify if the file path is valid before attempting to load it.

$file_path = '/absolute/path/to/file.txt';

if (file_exists($file_path)) {
    $file_contents = file_get_contents($file_path);
    // Process file contents here
} else {
    echo "File does not exist or is inaccessible.";
}