Returns the regular expression flags

# RegexIterator::getPregFlags

(PHP 5 >= 5.2.0, PHP 7, PHP 8)

RegexIterator::getPregFlags — Returns the regular expression flags

### 说明

public function RegexIterator::getPregFlags(): int

Returns the regular expression flags, see RegexIterator::__construct() for the list of flags.

### 参数

此函数没有参数。

### 返回值

Returns a bitmask of the regular expression flags.

### 示例

示例 #1 RegexIterator::getPregFlags() example

    <?php

    $test = array ('str1' => 'test 1', 'teststr2' => 'another test', 'str3' => 'test 123');

    $arrayIterator = new ArrayIterator($test);
    $regexIterator = new RegexIterator($arrayIterator, '/\s/', RegexIterator::SPLIT);
    $regexIterator->setPregFlags(PREG_SPLIT_NO_EMPTY | PREG_SPLIT_OFFSET_CAPTURE);

    if ($regexIterator->getPregFlags() & PREG_SPLIT_NO_EMPTY) {
        echo 'Ignoring empty pieces';
    } else {
        echo 'Not ignoring empty pieces';
    }

    ?>

以上示例会输出：

    Ignoring empty pieces

### 参见

- RegexIterator::setPregFlags() - Sets the regular expression flags

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