How can PHP scripts be affected by safe mode restrictions when accessing files?

Safe mode restrictions in PHP can affect scripts when accessing files by limiting the operations that can be performed on files, such as restricting access to certain directories or functions. To work around these restrictions, you can use the `ini_set()` function to temporarily disable safe mode for the specific file operations that require it.

// Disable safe mode for file operations
ini_set('safe_mode', 0);

// Perform file operations that require safe mode to be disabled
$file = 'example.txt';
if (file_exists($file)) {
    $content = file_get_contents($file);
    echo $content;
}

// Re-enable safe mode if necessary
ini_set('safe_mode', 1);