note 109400 deleted from regexp.reference.repetition by danbrown
| From: | danbrown@php.net | Date: | Mon, 16 Jul 2012 15:19:48 +0000 |
| Subject: | note 109400 deleted from regexp.reference.repetition by danbrown | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-189179@lists.php.net to get a copy of this message | ||
Note Submitter: dmilosx at verat dot net
----
Code:
<?php
$match='';
echo '/a{3,5}/ result = ' . preg_match( '/a{3,5}/', 'BBaaaaaaaaaaaBB',
$match ) .PHP_EOL;
var_dump( $match );
echo '/a?/result = ' . preg_match( '/a?/', 'BBaaaaaaaaaaaBB', $match )
.PHP_EOL;
var_dump( $match );
echo '/a+/ result = ' . preg_match( '/a+/', 'BBaaaaaaaaaaaBB', $match
) .PHP_EOL;
var_dump( $match );
echo '/a{0,}/ result = ' . preg_match( '/a{0,}/', 'BBaaaaaaaaaaaBB',
$match ) .PHP_EOL;
var_dump( $match );
echo '/a*/ result = ' . preg_match( '/a*/', 'BBaaaaaaaaaaaBB', $match
) .PHP_EOL;
var_dump( $match );
echo '/a*/ result = ' . preg_match( '/a*/', 'aaaaaaaaaaaBB', $match )
.PHP_EOL;
var_dump( $match );
echo '/(a?)*/ result = ' . preg_match( '/(a?)*/', 'BBaaaaaaaaaaaBB',
$match ) .PHP_EOL;
var_dump( $match );
?>
Result:
/a{3,5}/ result = 1
array(1) {
[0]=>
string(5) "aaaaa"
}
/a?/result = 1
array(1) {
[0]=>
string(0) ""
}
/a+/ result = 1
array(1) {
[0]=>
string(11) "aaaaaaaaaaa"
}
/a{0,}/ result = 1
array(1) {
[0]=>
string(0) ""
}
/a*/ result = 1
array(1) {
[0]=>
string(0) ""
}
/a*/ result = 1
array(1) {
[0]=>
string(11) "aaaaaaaaaaa"
}
/(a?)*/ result = 1
array(2) {
[0]=>
string(0) ""
[1]=>
string(0) ""
}