Memory Refresh



Array,  
Sort

1) How do you sort the following array, case insensitive? <?php $arr = array('10t', '2T', '2t', '3t'); ........ // result is : 2t, 2T, 3t, 10t





2) How do you sort the following array? <?php $arr = array('da', 'b', 'c');




3) How do you sort two arrays at once?




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