Gxlsystem TIY Editor
Gxlsystem 在线教程
改变方向
暗黑模式
<!DOCTYPE html> <html> <body> <?php $pets=array("a"=>"Cat","B"=>"Dog","c"=>"Horse","b"=>"Bird"); print_r(array_change_key_case($pets,CASE_UPPER)); ?> </body> </html>