(PHP 3>= 3.0.9, PHP 4 >= 4.0.0)
preg_split -- Split string by a regular expression
Description
array
preg_split ( string pattern, string subject [, int limit [, int flags]])
Note:
Parameter flags was added in PHP 4 Beta 3.
Returns an array containing substrings of
subject split along boundaries matched by
pattern.
If limit is specified, then only substrings up to
limit are returned, and if
limit is -1, it actually means "no limit", which is
useful for specifying the flags.
flags can be any combination of the following flags
(combined with bitwise | operator):
- PREG_SPLIT_NO_EMPTY
If this flag is set, only non-empty pieces will be returned by
preg_split().
- PREG_SPLIT_DELIM_CAPTURE
If this flag is set, parenthesized expression in the delimiter pattern
will be captured and returned as well. This flag was added for 4.0.5.
Example 1. preg_split() example : Get the parts of a search string. // split the phrase by any number of commas or space characters,
// which include " ", \r, \t, \n and \f
$keywords = preg_split ("/[\s,]+/", "hypertext language, programming"); |
|
Example 2. Splitting a string into component characters. $str = 'string';
$chars = preg_split('//', $str, -1, PREG_SPLIT_NO_EMPTY);
print_r($chars); |
|
See also
spliti(),
split(),
implode(),
preg_match(),
preg_match_all(), and
preg_replace().
