This function returns a copy of
str, translating all occurrences of each
character in from to the
corresponding character in
to and returning the result.
If from and to are different lengths, the extra
characters in the longer of the two are ignored.
strtr() can be called with only
two arguments. If called with two arguments it behaves in a
new way: from then has to
be an array that contains string - string pairs that will
be replaced in the source string.
strtr() will always look for the longest possible match
first and will *NOT* try to replace stuff that it has already
worked on.
Examples:
注: This optional to and from parameters were added in PHP 4.0.0
See also ereg_replace().