| Re: Checking equal number of <div> and </div> [message #171343 is a reply to message #171283] |
Thu, 30 December 2010 14:33   |
Twayne
Messages: 135
Registered: September 2010
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Senior Member |
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In news:a4d4b5ce-6bcb-40eb-9641-27f48ad3229a(at)l17g2000yqe(dot)googlegroups(dot)com,
jwcarlton <jwcarlton(at)gmail(dot)com> typed:
> Can you guys think of a good way for me to check a string
> to make sure there are an equal number of <div (.*)> and
> </div>? Then, either add or remove </div> tags as needed to
> make them match?
>
> I'm sure that I could do something like this, but PHP is
> usually pretty insightful so I thought there might be a
> better way:
>
> // typed up for the example; obviously not in use or tested
> $num_opentag = substr_count($text, '<div');
> $num_closetag = substr_count($text, '</div>');
>
> // More closed than open
> if ($num_closetag > $num_opentag) {
> $difference = $num_closetag - $num_opentag;
> $text = preg_replace("/<\/div/i", "", $text, $difference);
> }
>
> // More open than closed
> if ($num_opentag > $num_closetag) {
> $difference = $num_opentag - $num_closetag;
> $text = preg_replace("/<div (.*)>/i", "", $text,
> $difference); }
Every time you type a <div>, also go down a couple lines and do the /div.
Then put the "stuff" that goes in between. Works 100% of the time for me!
Another thing you can do is number the div's with comments.
HTH,
Twayne`
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