RegexIterator::setFlags()
(PHP 5 >= 5.2.0, PHP 7)
Sets the flags
说明
public RegexIterator::setFlags(int $flags): void
Sets the flags.
参数
- $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.
RegexIterator flags value constant 1 RegexIterator::USE_KEY
返回值
没有返回值。
范例
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
参见
- RegexIterator::getFlags() Get flags