First, are you using LWP::Simple
? I can't tell from your example. I'll assume so. (ah, hope...)
LWP::Simple::get() will return just one string, containing all the returned lines, into your variable $content so pushing that value onto an array doesn't make sense.
You may count the instances of one string in another with something like this:
$n = () = $content =~ m/abcdef/g;
Reading from right to left, we ask the match operator to match multiple times, we then say we want it to act as though returning a list of all the matched strings, and then we say we _really_ just want the count of matched strings.
Are you posting in the right place? Check out Where do I post X? to know for sure.
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Want more info? How to link
or How to display code and escape characters
are good places to start.