[Resolved] Extract data of Input tags

udendra

hi,
I want to extract the "name" & "value" of all <input> and <select> tags in an HTML source.

for ex:
<input type=text name=qno value=1>
<input type=hidden name=ref value=books>
........

i would like to get the data (qno,1), (ref,books) ......and so on.

would appreciate if u could mention how to extract the name & values of a <select > tag as well , though for the moment <input> tags will do.

thankx.

LordShryku

Simple foreach should do it. Assuming you use the post method....

foreach($_POST as $key =>$val) {
   echo "Name = ".$key." and value = ".$val."<br />";
}

udendra

thank u for the reply ..

but i was actually asking how to extract them from a given HTML source..
either by using a regular expression match or some other way .

thankx again.

Weedpacket

Hmm. I remember when this question was asked about find the href attribute in an <a> tag... I do remember similar questions asked about other attributes of other tags, but they tended to boil down to this one.

udendra

that post was good..
and managed to extract all the <input> tags ..
but now I'm tearing my head off, cos I'm not able to retrieve the <option> elements between the <SELECT> </SELECT> tags...

how could i do this?

whats wrong with this :

preg_match_all('/<SELECT\>(.*?)<\/SELECT>/is', $f, $matchso);

Weedpacket

Originally posted by udendra
whats wrong with this :
preg_match_all('/<SELECT\>(.*?)<\/SELECT>/is', $f, $matchso);
[/B]

It will only succeed in matching if the <select> tag really was <SELECT> - with no attributes. Try <SELECT[^>]*> instead, so that it will match anything that starts with a <SELECT up to the closing >.

(The added portion could have been written as .?, but since we can identify where it should stop matching by a single character, we can do some efficiency stuff and say we want to continue matching as long as we don't match that character; hence, [^>]. The closing > of the tag is of course picked up after that.)

udendra

🙂
thankx dude...

It works fine now.

echo($matchso[1]);
gives me all the <option> elements within each <select> </select> pair.

🆒