(PHP 4 >= 4.4.3, PHP 5 >= 5.1.3, PHP 7)
mb_check_encoding — 锟斤拷锟斤拷址锟斤拷锟斤拷锟街革拷锟斤拷谋锟斤拷锟斤拷锟斤拷欠锟斤拷锟叫�
$var = NULL
[, string $encoding = mb_internal_encoding()
]] ) : bool锟斤拷锟街革拷锟斤拷锟斤拷纸锟斤拷锟斤拷锟街革拷锟斤拷谋锟斤拷锟斤拷锟斤拷欠锟斤拷锟叫э拷锟斤拷锟斤拷锟斤拷锟叫э拷锟斤拷锟斤拷锟轿斤拷锟�"锟斤拷效锟斤拷锟诫攻锟斤拷锟斤拷Invalid Encoding Attack锟斤拷"锟斤拷
var要锟斤拷锟斤拷锟街斤拷锟斤拷锟斤拷锟斤拷锟绞★拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟剿猴拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷械锟斤拷锟斤拷搿�
encoding锟斤拷锟斤拷锟侥憋拷锟诫。
锟缴癸拷时锟斤拷锟斤拷 TRUE锟斤拷 锟斤拷锟斤拷锟斤拷失锟斤拷时锟斤拷锟斤拷 FALSE锟斤拷