Split the given string by a regular expression.
The pattern to search for, as a string.
The input string.
If specified, then only substrings up to
are returned, and if
limit is -1, it actually
means "no limit", which is useful for specifying the
flags can be any combination of the following
flags (combined with bitwise | operator):
If this flag is set, only non-empty pieces will be returned by preg_split().
If this flag is set, parenthesized expression in the delimiter pattern will be captured and returned as well.
If this flag is set, for every occurring match the appendant string
offset will also be returned. Note that this changes the return
value in an array where every element is an array consisting of the
matched string at offset 0 and its string offset
subject at offset 1.
Returns an array containing substrings of
split along boundaries matched by
Example 3. Splitting a string into matches and their offsets
The above example will output: