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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').
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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.
; p2 b. d/ K2 g1 D1 _/ v% f  }閮箸瑚銝mysql: (php 5.6.38 , mysql 5.1.73)9 Z6 g9 J+ H; u9 N
餃叮ysql 嗅頛詨 : % F  \7 H2 R7 s  V; }
mysql> SHOW VARIABLES LIKE 'old_passwords';
2 Z+ a0 i& \. K% T0 W1 q. d+------------------+-------+
; q0 x" Q/ N9 l2 _8 r6 k| Variable_name | Value |
- d* y' [9 p( s$ Y+------------------+-------+) B+ n3 n* Z3 D" C+ a# {, d6 q
| old_passwords | ON   |
/ c0 g3 e, ~) ?" o6 J+------------------+-------+
  l& x- M' K# _, f  c& [  E# {1 row in set (0.00 sec)
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$ z1 k; ]0 @5 ]6 k) @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 restart2 k  Y7 J  N9 h* X7 b9 s" D
mysql prompt銝頛詨:3 x: E+ d3 P/ h1 g$ W
mysql> SET old_passwords=FALSE;  4 y  Q$ U7 h% N* Q: v% h% {7 w
瑼X叮ysql.user 瘥撖蝣潮瑕漲:7 Z! D  F7 }/ ?
mysql> SELECT 'User', 'Host', Length('Password') FROM mysql.user;
* C1 V+ a2 ]+ K  D* ^3 g! i" [! T憒瘝寞41雿,Length('Password')甈雿閰脤賣160(銵函內瘝閮剖蝣)
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( p; U6 ]3 }: _( _閮剖靘撖蝣:6 F6 M2 _1 d8 y: m
mysql> 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: p% F* q9 n/ g3 l% k# Y, C+ ]
mysql> flush privileges;
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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; m+ j$ Z% V/ {" h4 `7 D
瘜冽:
; u7 p3 R+ X: |  a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
===========================================================================
4 g* Z* b! [4 Q" T8 |鄉ysql蝝 8.0.21,php逅ysql箇2銵errors:
0 g5 ?$ N$ M  u! z( B- omysqli_real_connect(): Server sent charset (255) unknown to the client. Please, report to the developers
' C6 @2 X0 ?7 omysqli_real_connect(): (HY000/2054): Server sent charset unknown to the client. Please, report to the developers1 B0 ~5 k! z$ x. `" C
:
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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:
# E3 L, S: e6 A. N5 V6 a2 z( ivi /etc/my.cnf  乩:$ x5 R; _/ ^& [+ I" m% F
[mysqld]
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character-set-server=utf81 o0 i$ r9 C; d# [) |- p+ T; J
default_authentication_plugin=mysql_native_password
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[mysql]1 v* _, Y2 b( Q) M  R
default-character-set=utf86 ^4 j' N* ^# u( w) [6 ]4 a) R

1 D) r$ j6 f  ]# A/ k( ]3 G[client]* g9 c8 T% g, d( f2 f& `0 F4 M, J
default-character-set=utf8) t8 E0 g* ^5 P' b  u3 C: F2 S
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嗅mysqld9 ~" M! i6 m& C, D! x: X
service mysqld restart
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