PHP array, Are array indexes case sensitive?
问题 I don't know if this is a problem yet but wanted to start thinking about it. Question: " Are PHP array indexes case sensitive "? Example: $a=array("a"=>"Dog","b"=>"Cat","c"=>"Horse","A"=>"Dog","B"=>"Cat","C"=>"Horse"); print_r($a); Results: Array ( [a] => Dog [b] => Cat [c] => Horse [A] => Dog [B] => Cat [C] => Horse ) I've run a couple of examples and this seems to hold true, just wanted to make sure that I'm seeing this correctly. 回答1: Yes. They are case sensitive. PHP array indexes act as