(PHP 5 >= 5.2.0, PHP 7)
RegexIterator::setPregFlags — Sets the regular expression flags
$preg_flags
) : voidSets the regular expression flags.
preg_flagsThe regular expression flags. See RegexIterator::__construct() for an overview of available flags.
没有返回值。
Example #1 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)
}
}