It formats a local time/date according to locale settings
Example
<?php
setlocale(LC_TIME, “C”);
echo strftime(“%A”);
?>
Below given are the the formats
%a,%A,%d,%e,%j,%u,%w,%U,%V,%W,%b,%B,%h,%m,%C,%g,%G,%y,%Y,%H,%I,%l,%M,%p,%P,%r,%R,%S,%T,%X,%z,%Z
Output
Wednesday