Php/docs/regexiterator.construct
RegexIterator::__construct
(PHP 5 >= 5.2.0, PHP 7)
RegexIterator::__construct — Create a new RegexIterator
Description
public RegexIterator::__construct
( Iterator $iterator
, string $regex
[, int $mode
= self::MATCH
[, int $flags
= 0
[, int $preg_flags
= 0
]]] )
Create a new RegexIterator which filters an Iterator using a regular expression.
Parameters
iterator
The iterator to apply this regex filter to.
regex
The regular expression to match.
mode
Operation mode, see RegexIterator::setMode() for a list of modes.
flags
Special flags, see RegexIterator::setFlags() for a list of available flags.
preg_flags
The regular expression flags. These flags depend on the operation mode parameter:
RegexIterator preg_flags operation mode available flags RegexIterator::ALL_MATCHES
See preg_match_all(). RegexIterator::GET_MATCH
See preg_match(). RegexIterator::MATCH
See preg_match(). RegexIterator::REPLACE
none. RegexIterator::SPLIT
See preg_split().
Examples
Example #1 RegexIterator::__construct() example
Creates a new RegexIterator that filters all strings that start with 'test'.
<?php$arrayIterator = new ArrayIterator(array('test 1', 'another test', 'test 123'));$regexIterator = new RegexIterator($arrayIterator, '/^test/');foreach ($regexIterator as $value) { echo $value . "\n";}?>
The above example will output something similar to:
test 1 test 123
See Also
- preg_match() - Perform a regular expression match
- preg_match_all() - Perform a global regular expression match
- preg_replace() - Perform a regular expression search and replace
- preg_split() - Split string by a regular expression