RegexIterator::setPregFlags

(PHP 5 >= 5.2.0)

RegexIterator::setPregFlags — Sets the regular expression flags.

说明

public void RegexIterator::setPregFlags ( int $preg_flags )

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

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)
  }
}

参见

RegexIterator::getPregFlags() - Returns the regular expression flags.