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(PHP 5 >= 5.2.0)
This iterator can be used to filter another iterator based on a regular expression.
$iterator
, string $regex
[, int $mode
= self::MATCH
[, int $flags
= 0
[, int $preg_flags
= 0
]]] )$flags
)$mode
)$preg_flags
)$iterator
)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::USE_KEY
Special flag: Match the entry key instead of the entry value.
[#1] jinmoku at hotmail dot com [2010-12-10 12:28:18]
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));
?>