Creates a new RecursiveRegexIterator
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    RecursiveRegexIterator::__construct

    (PHP 5 >= 5.2.0, PHP 7, PHP 8)

    RecursiveRegexIterator::__construct — Creates a new RecursiveRegexIterator

    Description

    public RecursiveRegexIterator::__construct(
        RecursiveIterator $iterator,
        string $pattern,
        int $mode = RecursiveRegexIterator::MATCH,
        int $flags = 0,
        int $pregFlags = 0
    )

    Creates a new regular expression iterator.

    Parameters

    iterator

    The recursive iterator to apply this regex filter to.

    pattern

    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.

    pregFlags

    The regular expression flags. These flags depend on the operation mode parameter:

    RegexIterator preg_flags
    operation mode available flags
    RecursiveRegexIterator::ALL_MATCHES See preg_match_all().
    RecursiveRegexIterator::GET_MATCH See preg_match().
    RecursiveRegexIterator::MATCH See preg_match().
    RecursiveRegexIterator::REPLACE none.
    RecursiveRegexIterator::SPLIT See preg_split().

    Examples

    Example #1 RecursiveRegexIterator::__construct() example

    Creates a new RegexIterator that filters all strings that start with 'test'. 

    <?php$rArrayIterator = new RecursiveArrayIterator(array('test1', array('tet3', 'test4', 'test5')));$rRegexIterator = new RecursiveRegexIterator($rArrayIterator, '/^test/',    RecursiveRegexIterator::ALL_MATCHES);foreach ($rRegexIterator as $key1 => $value1) {    if ($rRegexIterator->hasChildren()) {        // print all children        echo "Children: ";        foreach ($rRegexIterator->getChildren() as $key => $value) {            echo $value . " ";        }        echo "\n";    } else {        echo "No children\n";    }}?>

    The above example will output something similar to:

    No children
Children: test4 test5

    See Also