PHP File Handling hw

Question

$handle = fopen("mytext.txt", "r");

echo fread($handle,filesize("mytext.txt"));
echo preg_match("/[0-9]/","",$handle);

fclose($handle);

I want to open a text file and find how many digits are there in the text. I tried to use preg_match but I think this is not correct way to do it.

Answer 1

preg_match() accepts Handle for resources. Which is incorrect:

$handle = fopen("mytext.txt", "r");

$content = fread($handle,filesize("mytext.txt"));
$noDigit = preg_match("/[0-9]/","",$content);

fclose($handle);