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[mysql] 閫瘙 php叮ysql隞孑ysqli_connect()蝑蝑航炊==>mysqlnd cannot connect to MySQL 4.1

[銴鋆賡包
頝唾唳摰璅撅
璅銝
潸” 2018-10-11 12:57:07 | 芰閰脖 撣 |摨閬 |梯璅∪
酥hp 5.5隞乩 銝 mysql 5.2 嚗叮ysql隞 mysqli_connect() Y航炊mysqli_connect(): mysqlnd cannot connect to MySQL 4.1+ using the old insecure authentication. Please use an administration tool to reset your password with the command SET PASSWORD = PASSWORD('your_existing_password').7 x3 \% b0 s* X+ ~$ Y! _

5 T( M6 f0 {4 \臬歉hp 5.3隞亙撖蝣潭16雿蝺函Ⅳ,啁php 5.3隞亙41雿蝺函Ⅳ,mysql 5.2 隞亙閮凋16蝣,隞交甇斤車航炊.2 o4 b6 V* W- V3 S  |0 C3 z
閮箸瑚銝mysql: (php 5.6.38 , mysql 5.1.73)
7 F. V' C: E9 S+ X8 Q餃叮ysql 嗅頛詨 :
% p5 m  C, x2 p$ I* c9 F3 Pmysql> SHOW VARIABLES LIKE 'old_passwords';
! W1 N7 `. `- x. a4 e$ a9 a& A+------------------+-------+
! l6 x: t$ d; L- O| Variable_name | Value |) F- N' \9 a, w3 q. c( z
+------------------+-------+
( o  A( K. o' S  u6 [+ H9 T: l) o| old_passwords | ON   |
6 e) N1 u$ b! Y+------------------+-------+* u% a8 J; d7 q3 g
1 row in set (0.00 sec)
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old_password  ==> ON  撠梯”蝷 /etc/my.cnf  鋆 old_passwords=1  閮剖16蝣,撠摰閮剔 0 嗅mysqld ==> service mysqld restart
% ]4 x0 c0 \$ {3 p) C mysql prompt銝頛詨:5 o4 Z1 T+ U: w
mysql> SET old_passwords=FALSE;  
; j% C; N; T3 s' @( ~2 n瑼X叮ysql.user 瘥撖蝣潮瑕漲:' G: I& ^) Q6 z" U
mysql> SELECT 'User', 'Host', Length('Password') FROM mysql.user;5 k  j9 }/ q! C! L! r4 z8 W
憒瘝寞41雿,Length('Password')甈雿閰脤賣160(銵函內瘝閮剖蝣)
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閮剖靘撖蝣:
! z; k% ~$ n4 v6 \' tmysql> SET PASSWORD FOR 'root'@'192.168.1.1' = PASSWORD('靘撖蝣');    // 撠敹閬詨靘 撣唾@IP 湔,銝閬寥臭7 G6 \( H# C: G# L3 }
mysql> flush privileges;
1 w; R: \, q  L
* [0 k2 o( p4 Y( Q- T( c9 p$ b頛詨 SELECT 'User', 'Host', Length('Password') FROM mysql.user; 瑼X亙蝣澆漲,撠勗舐潛曉寧root 撖蝣潮瑕漲撌脫寧41蝣
0 I- f. m% t/ h, m( ?' W, l瘜冽:
' T3 ~* V" D# n; t1 Q- ~6 ^憒撣唾憭芸,臭誑啣憿閮剖蝣,粹閮剖蝣 SET PASSWORD FOR 芷撠亙蝣,銝 old_passwords=0 撠撖蝣潮敶梢
===========================================================================
$ Q" Y* ^$ M" k4 t* V8 C鄉ysql蝝 8.0.21,php逅ysql箇2銵errors:# N* ]( J3 ~! B; L& ~/ y
mysqli_real_connect(): Server sent charset (255) unknown to the client. Please, report to the developers
7 G( {& f+ k* P$ b0 Zmysqli_real_connect(): (HY000/2054): Server sent charset unknown to the client. Please, report to the developers* n- \# q: S( R5 E5 J
:
0 w: i6 ~5 F/ l0 K7 n2 z3 r
決ySQL 8.0.21銝哨caching_sha2_password舫隤頨思遢撽霅隞塚銝臭誑敺mysql_native_password隞亙php銝詨捆臭誑蝝php嚗銋臭誑靽格遍ySQL蝵柴 曆犖瘙箏靽格遍ySQL蝵:
: ]0 T# e$ [: x5 C; A9 D9 hvi /etc/my.cnf  乩:
4 T. Q/ Q. o' |[mysqld]( r1 w+ z3 e  S; S/ P+ O; Q- X

& U+ Q7 r- _# t5 M8 ocharacter-set-server=utf8
# _9 ]2 Y* W: Idefault_authentication_plugin=mysql_native_password1 @$ `1 n2 s0 m/ v, t- j! [8 g" o, P
& k; D# p* a/ Y7 L6 L( H
[mysql]
/ R, Q( R) f9 v6 Y% ldefault-character-set=utf8  A, U7 `7 A- H" n

7 f' f+ p2 ~' Y4 r* y, j[client]
6 O4 ^9 @* C2 kdefault-character-set=utf8
! q8 I1 E# L3 H0 k) k- W: o0 S& J6 r0 s5 ^3 n( E# H- d
嗅mysqld" p1 {) H4 c4 M+ a: {& K. z
service mysqld restart
% o+ ]% Z: T) a& c9 Y* w' }1 o摰!!, u5 t) o8 A# `, n) t7 n

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