How can the use of clearstatcache function in PHP help in resolving file existence checking issues?

When checking for the existence of a file in PHP using functions like file_exists(), there may be issues with the function returning incorrect results due to caching. To resolve this, the clearstatcache() function can be used to clear the file status cache and ensure accurate results when checking for file existence. 

// Check for file existence without clearing the cache
$file_exists = file_exists('example.txt');
if($file_exists){
    echo 'File exists';
} else {
    echo 'File does not exist';
}

// Clear the file status cache
clearstatcache();

// Check for file existence after clearing the cache
$file_exists = file_exists('example.txt');
if($file_exists){
    echo 'File exists';
} else {
    echo 'File does not exist';
}

Keywords

clearstatcache file existence PHP function resolving

Related Questions