RegexIterator::setPregFlags()
(PHP 5 >= 5.2.0, PHP 7)
Sets the regular expression flags
说明
public RegexIterator::setPregFlags(int $preg_flags): void
Sets the regular expression flags.
参数
- $preg_flags
The regular expression flags. See RegexIterator::__construct() for an overview of available flags.
返回值
没有返回值。
范例
RegexIterator::setPregFlags() example
Creates a new RegexIterator that filters all entries with where the array key starts with 'test'.
<?php $test = array ('test 1', 'another test', 'test 123'); $arrayIterator = new ArrayIterator($test); $regexIterator = new RegexIterator($arrayIterator, '/^test/', RegexIterator::GET_MATCH); $regexIterator->setPregFlags(PREG_OFFSET_CAPTURE); foreach ($regexIterator as $key => $value) { var_dump($value); } ?>
以上例程的输出类似于:
array(1) { [0]=> array(2) { [0]=> string(4) "test" [1]=> int(0) } } array(1) { [0]=> array(2) { [0]=> string(4) "test" [1]=> int(0) } }
参见
- RegexIterator::getPregFlags() Returns the regular expression flags