PHP 写字符串到文件中

PHP 写字符串到文件中

<?
function write_to_file($fn, $str)
{
    if ($str == &#39;&#39;) return &#39;Nothing to write...&#39;;
    if ($fn == &#39;&#39;) return &#39;No file to write to...&#39;;
    if (($fp = @fopen($fn, &#39;w&#39;)) === false) return &#39;Error obtaining file handle&#39;;
    if (@fwrite($fp, $str, strlen($str)) === false)
    {
        fclose($fp);
        return &#39;Error writing to file&#39;;
    }
    fclose($fp);
    return &#39;Data written to file successfully&#39;;
}
?>

                   

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