The RegexIterator class

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

简介

This iterator can be used to filter another iterator based on a regular expression.

类摘要

RegexIterator extends FilterIterator {
/* 常量 */
const int MATCH = 0 ;
const int GET_MATCH = 1 ;
const int ALL_MATCHES = 2 ;
const int SPLIT = 3 ;
const int REPLACE = 4 ;
const int USE_KEY = 1 ;
/* 方法 */
public __construct ( Iterator $iterator , string $pattern , int $mode = RegexIterator::MATCH , int $flags = 0 , int $pregFlags = 0 )
public accept ( ) : bool
public getFlags ( ) : int
public getMode ( ) : int
public getPregFlags ( ) : int
public getRegex ( ) : string
public setFlags ( int $flags ) : void
public setMode ( int $mode ) : void
public setPregFlags ( int $pregFlags ) : void
/* 继承的方法 */
public FilterIterator::accept ( ) : bool
public FilterIterator::current ( ) : mixed
public FilterIterator::getInnerIterator ( ) : Iterator
public FilterIterator::key ( ) : mixed
public FilterIterator::next ( ) : void
public FilterIterator::rewind ( ) : void
public FilterIterator::valid ( ) : bool
}

预定义常量

RegexIterator operation modes

RegexIterator::ALL_MATCHES

Return all matches for the current entry (see preg_match_all()).

RegexIterator::GET_MATCH

Return the first match for the current entry (see preg_match()).

RegexIterator::MATCH

Only execute match (filter) for the current entry (see preg_match()).

RegexIterator::REPLACE

Replace the current entry (see preg_replace(); Not fully implemented yet)

RegexIterator::SPLIT

Returns the split values for the current entry (see preg_split()).

RegexIterator Flags

RegexIterator::USE_KEY

Special flag: Match the entry key instead of the entry value.

Table of Contents

User Contributed Notes

jinmoku at hotmail dot com 10-Dec-2010 12:28
An exemple :

<?php
$a = new ArrayIterator(array('test1', 'test2', 'test3'));
$i = new RegexIterator($a, '/^(test)(\d+)/', RegexIterator::REPLACE);
$i->replacement = '$2:$1';
      
print_r(iterator_to_array($i));
/*
Array
(
    [0] => 1:test
    [1] => 2:test
    [2] => 3:test
)
*/
?>
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