PHP preg_match not working when reading text from excel?

Question

PHP

It is necessary to extract the link from the text. This text is read from the excel file and is in the $data[$c] variable, more precisely in the $data[$c] string;.
The code is like this:

preg_match('/http(.*)/i', $data[$c], $link);   //регулярное выражение максимально упростил
echo '$link:';
print_r($link);

But it doesn't work, then I just put some text in the test string and applied preg_match to it and it worked. After that, I decided maybe something was wrong with the types and started converting $data[$c] to a string type:
$str = strval($data[$c]);
But that didn’t help either, now I’m writing to the forum.

Answer 1

and in general the normal text is in $data[$c]?