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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.4 v$ r7 n8 ^4 ^0 n3 g6 c5 k: D& u7 D
閮箸瑚銝mysql: (php 5.6.38 , mysql 5.1.73)7 L7 y" l# v& f& i
餃叮ysql 嗅頛詨 : % K1 O: f/ w1 R- @$ K. m+ f3 A
mysql> SHOW VARIABLES LIKE 'old_passwords';
: l" y, n# L1 S5 R# K+------------------+-------+7 i1 q$ G: G$ A
| Variable_name | Value |
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| old_passwords | ON   |8 A, [* D# p' ?$ T1 y4 g, e, \  A
+------------------+-------+; G' }! N. y5 D3 m% u) z; n4 G$ \+ `
1 row in set (0.00 sec)8 I% A, d% N# {1 a

( J7 k8 y6 o$ `4 Rold_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
. r7 Y( H) ~' g( \ mysql prompt銝頛詨:! y7 C1 P8 `5 T
mysql> SET old_passwords=FALSE;  
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: U/ v. i3 e+ N/ U/ {# N* Gmysql> SELECT 'User', 'Host', Length('Password') FROM mysql.user;+ q3 w  ]; H4 e6 k
憒瘝寞41雿,Length('Password')甈雿閰脤賣160(銵函內瘝閮剖蝣)
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# K5 r* b8 I+ `閮剖靘撖蝣:7 c9 V4 Z# m" x" G
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3 p# z6 r0 W- G  V1 N
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: e% T5 a& m' N  {* ]+ P+ e
瘜冽:6 N  _$ J4 D4 U+ 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
===========================================================================
! w# D" s3 \+ Q! n' G. d( ^- f鄉ysql蝝 8.0.21,php逅ysql箇2銵errors:0 @, N( J2 [6 u6 H/ Q8 _7 ?
mysqli_real_connect(): Server sent charset (255) unknown to the client. Please, report to the developers
. T: w! s; B7 ^0 P# Jmysqli_real_connect(): (HY000/2054): Server sent charset unknown to the client. Please, report to the developers' L( z% {% n/ X% J( o  z9 t
:

* _4 h) Z3 P  f/ p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:
% Q3 e8 S9 t' F# w6 vvi /etc/my.cnf  乩:
6 R" p. o' {/ u! x/ n# r[mysqld]
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character-set-server=utf8& P2 }! `2 n. G
default_authentication_plugin=mysql_native_password
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, \) @( P6 w9 y8 t: z! C  m[mysql]2 F7 G7 E2 {/ {% z2 ]& s; P
default-character-set=utf8; _" ]# T3 c% R6 [/ h5 q, D

+ d( h0 a& K8 C+ e9 ?& Y[client]* Y$ l( Z6 F8 Y; I1 {0 G- D
default-character-set=utf82 |7 N3 e/ N/ g; w

! u5 H6 M9 r+ d5 O嗅mysqld! L# b! \9 m0 X- [1 \
service mysqld restart+ K6 F! i* }/ Y! [- ~0 ]6 h$ Q
摰!!
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