RecursiveRegexIterator::__construct
(PHP 5 >= 5.2.0)
RecursiveRegexIterator::__construct — Creates a new RecursiveRegexIterator.
说明
$iterator
, string $regex
[, int $mode = self::MATCH
[, int $flags = 0
[, int $preg_flags = 0
]]] )Creates a new regular expression iterator.
参数
-
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:
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() .
范例
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" ;
}
}
?> 以上例程的输出类似于：
No children Children: test4 test5
参见
- preg_match() - 执行一个正则表达式匹配
- preg_match_all() - 执行一个全局正则表达式匹配
- preg_replace() - 执行一个正则表达式的搜索和替换
- preg_split() - 通过一个正则表达式分隔字符串
用户评论:
[#1] SongoQ [2009-10-27 23:22:18]
RecursiveRegexIterator::ALL_MATCHES List all subdirectories and files.
<?php
$a = new RecursiveRegexIterator( new RecursiveDirectoryIterator(
'/home/songoq' ), '/mydir/i', RecursiveRegexIterator::ALL_MATCHES );
foreach( new RecursiveIteratorIterator( $a ) as $s )
{
echo $s."\n";
}