count number of results in a string search

Hello,
I have this string and I need to check how many times '<li>' is present please:

<li>aho</li><li>hao</li><li>loa</li><li>ola</li>

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thank you
eMiscAsked:
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karunamoorthyCommented:
which long u r using, php or ....
eMiscAuthor Commented:
Experts Exchange- Scripting Languages- JavaScript- Count Number Of Results In A String Search
Tom BeckCommented:
Assuming the <li>s are inside a <ul>, then in javascript you could do this:
<body>
<ul id="ul1">
<li>aho</li><li>hao</li><li>loa</li><li>ola</li>
</ul>
<script type="text/javascript">
alert(document.getElementById("ul1").getElementsByTagName("li").length);
</script>
</body>

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JT92677Commented:
If you get the lengths of the substring you're looking for, and the length of the string being analyzed, then
use a Replace command, such as str_replace all occurrances of the substring with '' (nothing) in the analyzed string.

Then the number of occurrances woud be  

( (length of string before replacement) - (length of string after replacement) ) / (Length of target substring)

Kind of a generic solution if you have a function to replace a substring within a string, or write such a function
if whatever language you're using doesn't have it.  String replacements can be done in several ways, but
once the string has been emptied of the substring, the lengths before and after will tell you how many
substrings existed originally.

There might be simpler solutions, but this would work.
Tom BeckCommented:
How about this?
<script type="text/javascript">
var liCount = "<li>aho</li><li>hao</li><li>loa</li><li>ola</li>".split("<li>").length - 1;
alert(liCount);
</script>

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eMiscAuthor Commented:
thank you!
JT92677Commented:
eMisc -- tommyboy figured you were doing this in javascript. Okay, if so there are some useful properties and methods in javascript that you might want to check out as alternative ways to deal with strings and javascript.

For example:

    mystr = "<li>aho</li><li>hao</li><li>loa</li><li>ola</li>";

You can get the length as    lenmystr = mystr.length;

Then use replace method with the global match switch to replace all occurrences in the string

    mystr.replace("<li>"/gm, "");   to replace globally all the "<li>" found with nothing.

Now  mystr.length; property will be the length of the string without all the "<li>" substrings.

and the number of matches = (lenmystr - mystr.length) / "<li>".length

Check out http://www.w3schools.com/jsref/jsref_obj_string.asp

The /g switch means look for all (global), the /m means multi-line.

Just FYI - I realize the question is closed, but someone else may benefit, who knows.
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