What are some common reasons for the touch() function to fail in PHP?

Common reasons for the touch() function to fail in PHP include insufficient permissions to write to the specified file or directory, the file or directory not existing, or the file system being read-only. To solve this issue, you can check and ensure that the file or directory exists, check and adjust the permissions accordingly, or verify that the file system is not read-only. 

$file = 'example.txt';

if (!file_exists($file)) {
    touch($file);
    echo "File created successfully.";
} else {
    echo "File already exists.";
}

Keywords

touch() function fail PHP error

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