array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'zh', ), 'this' => array ( 0 => 'regexiterator.setflags.php', 1 => 'RegexIterator::setFlags', ), 'up' => array ( 0 => 'class.regexiterator.php', 1 => 'RegexIterator', ), 'prev' => array ( 0 => 'regexiterator.getregex.php', 1 => 'RegexIterator::getRegex', ), 'next' => array ( 0 => 'regexiterator.setmode.php', 1 => 'RegexIterator::setMode', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'en', 'path' => 'reference/spl/regexiterator/setflags.xml', ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); ?>
(PHP 5 >= 5.2.0, PHP 7, PHP 8)
RegexIterator::setFlags — Sets the flags
flags
The flags to set, a bitmask of class constants.
The available flags are listed below. The actual meanings of these flags are described in the predefined constants.
value | constant |
---|---|
1 | RegexIterator::USE_KEY |
没有返回值。
示例 #1 RegexIterator::setFlags() example
Creates a new RegexIterator that filters all entries whose key starts with 'test
'.
<?php
$test = array ('str1' => 'test 1', 'teststr2' => 'another test', 'str3' => 'test 123');
$arrayIterator = new ArrayIterator($test);
$regexIterator = new RegexIterator($arrayIterator, '/^test/');
$regexIterator->setFlags(RegexIterator::USE_KEY);
foreach ($regexIterator as $key => $value) {
echo $key . ' => ' . $value . "\n";
}
?>
以上示例会输出:
teststr2 => another test