PHP String Comparison == vs strcmp

Question

it seems that PHP's == operator is case sensitive? so is there any reason to use strcmp()? isit safe to do something like

if ( $password == $password2 ) { ... }

Answer 1

You can use strcmp() if you wish to order/compare strings lexicographically. If you just wish to check for equality then == is just fine.

Answer 2

The reason to use it is because strcmp

returns < 0 if str1 is less than str2; > 0 if str1 is greater than str2, and 0 if they are equal.

== only returns true or false, it doesn't tell you which is the "greater" string.