Returns an array of strings, each of which is a
substring of string formed
by splitting it on boundaries formed by the string separator. If
limit is set, the returned array will contain a
maximum of limit elements
with the last element containing the rest of string.
If separator is an
empty string (""), explode() will
return FALSE. If separator contains a value that is
not contained in string,
then explode() will return an array
containing string.
注: The limit parameter was added in PHP 4.0.1
注: Although implode() can for historical reasons accept its parameters in either order, explode() cannot. You must ensure that the separator argument comes before the string argument.
See also preg_split(), spliti(),
split(), and implode().