What's that PHP function....?

Question

What's the PHP function that will count the number of occurrences of something within a string?

My registration script needs to check password strength, and in order to do that I need to count the number of numbers within a password.

So, I need the function that given "$password" will search and count the numbers in it.

How would I go about this? Regex?

Answer 1

Simply do like below:

-----StartCode-----

<?php

echo mb_substr_count("This is a test", "is"); // 2

?>

-----CodeEnd-----

See also: http://php.net/mb_substr_count

Answer 2

checking password strength would best be done with javascript

Answer 3

strlen($password) will tell you how many characters in your string.

Good luck,

peng

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