Question

How to rewind the position of a file pointer (set file pointer to 0) in PHP

Answer 1

/*
bool rewind ( resource $handle )
*/

$file = fopen("e:/data.txt", "r");

echo fgets($file, 3) . "<br />";
echo fgets($file, 6) . "<br />";

//Set file pointer to 0
rewind($file);

echo fgets($file, 10) . "<br />";

fclose($file);

/*
run:

We
love
We love t

*/

 

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Answer 2

/*
bool rewind ( resource $handle )
*/

$fp = fopen('e:/data.txt', 'r+');

fwrite($fp, 'We love to code');
rewind($fp);
fwrite($fp, 'You');
rewind($fp);

echo fread($fp, filesize('e:/data.txt'));

fclose($fp);

/*
run:

Youlove to code

*/

 

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