php I wrote this little experiment, but it didn't work?

Excuse me, where did I write something wrong?

<code>$txt = "R:/1.txt";

date_default_timezone_set("PRC");


fOpen( $txt  ,"a+" );


for($i=0;$i<10 ;$i++)
{
    $str = date("Y-m-d H:i:s",Time());
    sleep(2);
    fwrite( $txt , $str );
}

fClose( $txt );
</code>

Reply content:

Excuse me, where did I write something wrong?

<code>$txt = "R:/1.txt";

date_default_timezone_set("PRC");


fOpen( $txt  ,"a+" );


for($i=0;$i<10 ;$i++)
{
    $str = date("Y-m-d H:i:s",Time());
    sleep(2);
    fwrite( $txt , $str );
}

fClose( $txt );
</code>

Um, the first parameter of fwrite is the file handle. What you are passing here is a path

<code class="php">
$txt = "R:/1.txt";

date_default_timezone_set("PRC");


//打開文件返回一個文件句柄，
$headle = fopen( $txt  ,"a+" );


for($i=0;$i<10 ;$i++)
{
    $str = date("Y-m-d H:i:s",time());
    sleep(2);
    fwrite($headle , $str );
}

fClose( $txt );
</code>