How can PHP be used to check if a file exists before attempting to delete it?
To check if a file exists before attempting to delete it in PHP, you can use the `file_exists()` function. This function takes a file path as a parameter and returns true if the file exists and false if it does not. By using this function before attempting to delete a file, you can avoid errors that may occur if the file does not exist.
$file_path = 'path/to/file.txt';
if (file_exists($file_path)) {
unlink($file_path);
echo 'File deleted successfully.';
} else {
echo 'File does not exist.';
}
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