note 27568 added to language.operators.comparison

To clarify on 'numerical' string equality comparisons, for example when testing progam version numbers where "two.three" is not the same as "two.thirty": $a = "2.3"; $b = "2.30"; $a == $b => true (unexpected) (string)$a == (string)$b => true (unexpected) To fix this problem append a space to the ends of each string, or use the === operator (which doesn't have the implicit casting to numbers that the == operator does) "$a " == "$b " => false $a.' ' == $b.' ' => false $a === $b => false The first is the slowest, the second 10% faster, the last seven times faster than the second. -- http://www.php.net/manual/en/language.operators.comparison.php http://master.php.net/manage/user-notes.php?action=edit+27568 http://master.php.net/manage/user-notes.php?action=delete+27568 http://master.php.net/manage/user-notes.php?action=reject+27568