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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')./ V5 O* u8 {, o. h% q% U

9 J5 L- F- }8 i5 y, T( f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.
. B' x5 k4 m6 T! N2 V2 {  ?閮箸瑚銝mysql: (php 5.6.38 , mysql 5.1.73)
5 j, G0 E: {! u& i- ~, P7 a' C6 l6 U餃叮ysql 嗅頛詨 : $ R, h: V) c9 ^9 W
mysql> SHOW VARIABLES LIKE 'old_passwords';
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| Variable_name | Value |6 O; L  Z( S3 C8 ^3 _8 t8 M
+------------------+-------+
' K& I! v: F) F1 q6 o3 ]| old_passwords | ON   |
+ l9 ]% E! R" L2 t+ S+------------------+-------+
1 T  n# x* y* M% q# d1 g' x1 row in set (0.00 sec)0 F3 U) b$ o, ]; d. p( K+ e6 W
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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
% F" f/ p& X6 o9 d% h$ w mysql prompt銝頛詨:
! o5 \: B4 f% u" Y) Zmysql> SET old_passwords=FALSE;  
! h! O; x" ~3 Y6 a/ B6 r瑼X叮ysql.user 瘥撖蝣潮瑕漲:
. y0 v. q4 c  k! C% b) Y( A2 Nmysql> SELECT 'User', 'Host', Length('Password') FROM mysql.user;# v6 q' {- d( X: J& Y2 h
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:
3 {6 M3 Z7 m; d3 i  k! b6 a2 Omysql> 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
1 W7 _- q" x6 @0 H7 omysql> flush privileges;
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) [$ p# |7 S* F! X- e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7 V4 t, @4 ]6 E0 R% ^' b" t2 Q
瘜冽:3 e; D4 e1 G+ K! [' S- {* b1 Q7 ]6 p
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
===========================================================================2 ^1 J8 @6 }) c  p0 Y/ q: S- I
鄉ysql蝝 8.0.21,php逅ysql箇2銵errors:& k. t$ k. _7 E: }* v1 D/ ~' t
mysqli_real_connect(): Server sent charset (255) unknown to the client. Please, report to the developers0 V! Z  h' \! m- _; \" L
mysqli_real_connect(): (HY000/2054): Server sent charset unknown to the client. Please, report to the developers
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5 S) s( X9 ]; H4 u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:
$ U; V! [5 n& O0 ~$ ~vi /etc/my.cnf  乩:1 t5 ^4 D& f' N: `7 T
[mysqld]
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character-set-server=utf8! }9 ?2 E; s& N1 M
default_authentication_plugin=mysql_native_password
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  U9 Q9 {6 C( [& {8 w[mysql]% T0 w# Z- N5 {! }/ T
default-character-set=utf81 {$ K: @- J, m( J
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[client], w& N7 p& [# n1 A( ^
default-character-set=utf8
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嗅mysqld
1 B. n, x$ r" Eservice mysqld restart, }: r6 V& j6 r( j& A& L; I! s
摰!!
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