Xpath regex and preg-match function
I have this code:
<div class="small_map_wrapper">
<script type="text/javascript">loadMap('44.7958873,20.471077899999954');</script>
I will fetch this content with:
$string = $xpath->query("//div[@class='small_map_wrapper']/@script")->item(0)->textContent;
then i try to get this numbers '44.7958873,20.471077899999954' with preg_match:
preg_match('/.*loadMap([\d.,]+)<.*/', $string, $matc开发者_StackOverflow中文版hes);
list($lat, $lng) = explode(',', $matches[1]);
$data['lat'] = $lat;
$data['lng'] = $lng;
BUT SOMETHING IN CODE I WROTE WRONG. I cant see error. Someone see error because after start this code $data['lat'] is 0, lng too (my english is not very well, sorry for that)
Instead of using a complicated regular expression, you can use a much easier to use function called sscanf
:
$r = sscanf($str, "loadMap('%f,%f", $lat, $lng);
It allows you to directly parse those two float values into variables for the string given (Demo).
@script
- this is wrong. You are trying to get an attribute called script
, not the tag. Remove that @
.
Your regex is also wrong, because it's looking for something like loadMap12.345,67.890<
. Try this regex instead: /loadMap\('([0-9.,]+)'\)/
That should do it.
精彩评论