note 73955 deleted from function.preg-match by colder
| From: | colder@php.net | Date: | Mon, 18 Jun 2007 18:13:13 +0000 |
| Subject: | note 73955 deleted from function.preg-match by colder | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-127574@lists.php.net to get a copy of this message | ||
Note Submitter: legolas558 d0t users dot sf dot net
----
I wanted to match all php tags in a string but I found preg_match_all not to behave correctly:
<?php
// additional spacing added not to confuse markup highlighters
preg_match_all('/<\\?'.'php.*\\?'.'>/i', $content, $m);
?>
Returned only the single line php tags:
[0]=>
array(4) {
[0]=>
string(23) "<?php doSomething(); ?>"
[1]=>
string(19) "<?php echo 'something'; ?>"
[2]=>
string(34) "<?php doSomethingElse();?>"
[3]=>
string(35) "<?php echo 'something else'; ?>"
}
So I gave up and wrote this small function:
<?php
function php_tags($s) {
// retrieve all PHP tags from $s
// PHP tags gatherer by legolas558
// initialize variables
$offset = 0;
$tags = array();
// loop till php tags are found
while (false !== ($p = strpos($s, '<'.'?php', $offset))) {
$p += 6;
$et = strpos($s, '?'.'>', $p);
// could not find termination tag
if ($et===false)
break;
// add tag to array
$tags[] substr($s, $p, $et-$p);
// properly increment offset
$offset = $et+2;
}
return $tags;
}
?>
This function does the job, however if you have used strings containing "<?php" and
"?>" in your PHP code tags it will not work.