regex - Regular expression, replace between "<" and ">", php -


i'm weak in regular expressions.

i need replace < , > (and anything between) new content.

this have: 

$key = preg_replace('/<.*>/', '', $key);

my little string <5> should my little string.
my little string <96> should my little string.

what did wrong?

the following works if supply string instead of $key:

preg_replace('/<.*>/', '', 'my little string <96>');

what value of $key?


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