Php/docs/regexiterator.setflags
RegexIterator::setFlags
(PHP 5 >= 5.2.0, PHP 7)
RegexIterator::setFlags — Sets the flags
说明
public RegexIterator::setFlags
( int $flags
) : void
Sets the flags.
参数
flagsThe flags to set, a bitmask of class constants.
The available flags are listed below. The actual meanings of these flags are described in the predefined constants.
RegexIterator flags value constant 1 RegexIterator::USE_KEY
返回值
没有返回值。
范例
Example #1 RegexIterator::setFlags() example
Creates a new RegexIterator that filters all entries whose key starts with 'test'.
<?php$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";}?>
以上例程会输出：
teststr2 => another test
