I'am a visitor of this forum since many years. Today, I registred to post because I found a strange behavior concerning preg_replace_callback:
It is in a piece of code where I reformat HTML code. Functionnaly, it works.
This is the code:
- Code: Select all
function remplaceDl($matches) {
$a = '<div class=\'spip_documents_'.$matches[1].' spip_documents\'><img style=\''.$matches[5].'\' width=\''.$matches[3].'\' height=\''.$matches[4].'\' src=\''.$matches[2].'\'><div class=\'spip_doc_titre\'>'.$matches[6].'</div></div>';
return $a;
}
$patterns_float = "/<dl class='spip_document_\d* spip_documents spip_documents_(left|right|center).*<dt><img src='(.*)'.*width='(.*)'.*height='(.*)'.*style='(.*)'.*<\/dt>\n<dt.*>(.*)<\/dt>\n<\/dl>/iUms";
$html = preg_replace_callback($patterns_float, 'remplaceDl', $html, -1, $count);
Symptom: preg_replace_callback output is empty. the $html variable is reset.
With Eclipse PDT, the variable goes to status "uninitialized".
When I debug step-by-step, the function remplaceDl is well called, with the rigth parameters values, and the function gives the expected result. In my example, it is called 3 times and $count contains 3 also. But $html is reset.
This bug occurs in many configurations:
- even is subject $html does NOT contain text that match with the pattern,
- bug occurs with easyphp, wamp and also with the distant server.
Is it something with $patterns_float?
If I delete <\/dt> at the end, the one in bold below:
$patterns_float = "/<dl class='spip_document_\d* spip_documents spip_documents_(left|right|center).*<dt><img src='(.*)'.*width='(.*)'.*height='(.*)'.*style='(.*)'.*<\/dt>\n<dt.*>(.*)<\/dt>\n<\/dl>/iUms";
, it does not bug but the returning result is not the one I expect.
I tried to decrease the content of subject $html. And if there are only few tens of bytes, it does not bug. I wonder if there is something with the stack?
Note that I have several others preg_replace_callback after this piece of code, that handle the same $html, and it does not bug.
What could it be?
THANKS for your
