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RecursiveRegexIterator::__construct

RecursiveRegexIterator::__construct

(PHP 5 >= 5.2.0, PHP 7)

RecursiveRegexIterator::__construct — Creates a new RecursiveRegexIterator.

Description

public RecursiveRegexIterator::__construct ( RecursiveIterator $iterator , string $regex [, int $mode = self::MATCH [, int $flags = 0 , int $preg_flags = 0 ]] )

Creates a new regular expression iterator.

Parameters

iterator

The recursive 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:

operation modeavailable flags
RecursiveRegexIterator::ALL_MATCHESSee preg_match_all().
RecursiveRegexIterator::GET_MATCHSee preg_match().
RecursiveRegexIterator::MATCHSee preg_match().
RecursiveRegexIterator::REPLACEnone.
RecursiveRegexIterator::SPLITSee 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

  • 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

← RecursiveRegexIterator

RecursiveRegexIterator::getChildren →

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https://secure.php.net/manual/en/recursiveregexiterator.construct.php