PHP六种数组排序的方式

$string=array("M","B","A"); sort($string); print_r($string);123

$string=array("M","A","C"); sort($string); print_r($string);123

$person_age=array("john"=>"28","piter"=>"25","davies"=>"30"); asort($person_age); print_r($person_age);123

$person_age=array("john"=>"28","piter"=>"25","davies"=>"30"); ksort($person_age); print_r($person_age);123

$person_age=array("john"=>"28","piter"=>"25","davies"=>"30"); arsort($person_age); print_r($person_age);123

$person_age=array("john"=>"28","piter"=>"25","davies"=>"30"); krsort($person_age); print_r($person_age);