
<?php |
$fp = fopen('user.log', 'a+'); |
Menu(); |
function Menu(){ |
fwrite(STDOUT, "----------欢迎进入登录系统----------\n"); |
fwrite(STDOUT, "---1.登录系统\n"); |
fwrite(STDOUT, "---2.查看用户\n"); |
fwrite(STDOUT, "---3.添加用户\n"); |
fwrite(STDOUT, "---4.修改密码\n"); |
fwrite(STDOUT, "---5.注销用户\n"); |
fwrite(STDOUT, "---0.退出系统\n"); |
fwrite(STDOUT, "请输入编号:\n"); |
$stdin=fopen('php://stdin','r'); |
$number=trim(fgets($stdin,100)); |
fclose($stdin); |
switch($number){ |
case 1: |
Login(); |
break; |
case 2: |
ViewUser(); |
break; |
case 3: |
AddUser(); |
break; |
case 4: |
ChangePassword(); |
break; |
case 5: |
DeleteUser(); |
break; |
case 0: |
exit("已退出系统!\n"); |
default : |
fwrite(STDOUT, "输入错误,请重新输入!\n"); |
Menu(); |
break; |
} |
} |
function Login(){ |
fwrite(STDOUT, "\n---登录系统---\n"); |
fwrite(STDOUT, "请输入用户名:"); |
$stdin=fopen('php://stdin','r'); |
$username=trim(fgets($stdin,100)); |
fclose($stdin); |
fwrite(STDOUT, "请输入密码:"); |
$stdin=fopen('php://stdin','r'); |
$password=trim(fgets($stdin,100)); |
fclose($stdin); |
$content="username:".$username." password:".$password; |
$fp = fopen('user.log', 'r'); |
while (!feof($fp)) |
{ |
$user=fgets($fp); |
if(strpos($user,$content)===0){ |
fwrite(STDOUT, "\n登录成功!\n\n"); |
$user_look_=true; |
break; |
}else{ |
$user_look_=false; |
} |
} |
if($user_look_===false){ |
fwrite(STDOUT, "\n登录失败!\n\n"); |
} |
fwrite(STDOUT, "---请输入操作\n"); |
fwrite(STDOUT, "---1.返回主菜单\n"); |
fwrite(STDOUT, "---2.重新登录\n"); |
fwrite(STDOUT, "---0.退出系统\n"); |
fwrite(STDOUT, "请输入编号:\n"); |
$stdin=fopen('php://stdin','r'); |
$number=trim(fgets($stdin,100)); |
fclose($stdin); |
switch($number){ |
case 1: |
Menu(); |
break; |
case 2: |
Login(); |
break; |
case 0: |
exit("已退出系统!\n"); |
default : |
exit("输入错误,已退出系统!\n"); |
break; |
} |
} |
function ViewUser(){ |
fwrite(STDOUT, "\n---显示用户---\n"); |
$fp = fopen('user.log', 'r'); |
$i=1; |
while (!feof($fp)) |
{ |
$user=fgets($fp); |
$username=substr($user, strpos($user,'username:'), strpos($user,'password:')); |
if($username){ |
fwrite(STDOUT, $i++.'. '.$username."\n"); |
} |
} |
fwrite(STDOUT, "\n---请输入操作\n"); |
fwrite(STDOUT, "---1.返回主菜单\n"); |
fwrite(STDOUT, "---0.退出系统\n"); |
fwrite(STDOUT, "请输入编号:\n"); |
$stdin=fopen('php://stdin','r'); |
$number=trim(fgets($stdin,100)); |
fclose($stdin); |
switch($number){ |
case 1: |
Menu(); |
break; |
case 0: |
exit("已退出系统!\n"); |
default : |
exit("输入错误,已退出系统!\n"); |
break; |
} |
} |
function AddUser(){ |
fwrite(STDOUT, "\n---添加用户---\n"); |
fwrite(STDOUT, "\n请输入用户名:"); |
$stdin=fopen('php://stdin','r'); |
$username=trim(fgets($stdin,100)); |
fclose($stdin); |
fwrite(STDOUT, "请输入密码:"); |
$stdin=fopen('php://stdin','r'); |
$password=trim(fgets($stdin,100)); |
fclose($stdin); |
$content="username:".$username." password:".$password; |
$fp = fopen('user.log', 'r'); |
while (!feof($fp)) |
{ |
$user=fgets($fp); |
if(strpos($user,$content)===0){ |
fwrite(STDOUT, "\n用户已存在!\n\n"); |
$user_look_=true; |
break; |
}else{ |
$user_look_=false; |
} |
} |
if($user_look_===false){ |
file_put_contents('user.log', $content . "\r\n", FILE_APPEND); |
fwrite(STDOUT, "\n用户添加成功!\n\n"); |
} |
fwrite(STDOUT, "---请输入操作\n"); |
fwrite(STDOUT, "---1.返回主菜单\n"); |
fwrite(STDOUT, "---2.添加用户\n"); |
fwrite(STDOUT, "---0.退出系统\n"); |
fwrite(STDOUT, "请输入编号:\n"); |
$stdin=fopen('php://stdin','r'); |
$number=trim(fgets($stdin,100)); |
fclose($stdin); |
switch($number){ |
case 1: |
Menu(); |
break; |
case 2: |
AddUser(); |
break; |
case 0: |
exit("已退出系统!\n"); |
default : |
exit("输入错误,已退出系统!\n"); |
} |
} |
function ChangePassword(){ |
fwrite(STDOUT, "\n---修改密码---\n"); |
fwrite(STDOUT, "\n请输入用户名:"); |
$stdin=fopen('php://stdin','r'); |
$username=trim(fgets($stdin,100)); |
fclose($stdin); |
fwrite(STDOUT, "请输入原密码:"); |
$stdin=fopen('php://stdin','r'); |
$password=trim(fgets($stdin,100)); |
fclose($stdin); |
$content="username:".$username." password:".$password; |
$user=file_get_contents('user.log'); |
if($user) |
{ |
if(strpos($user,$content)!==false){ |
fwrite(STDOUT, "请输入新密码:"); |
$stdin=fopen('php://stdin','r'); |
$password1=" password:".trim(fgets($stdin,100)); |
fclose($stdin); |
$content=substr_replace($user,$password1,strpos($user,"username:".$username)+strlen("username:".$username),strlen(" password:".$password)); |
file_put_contents('user.log', $content); |
$user_look_=true; |
}else{ |
$user_look_=false; |
} |
}else{ |
$user_look_=false; |
} |
if($user_look_===false){ |
fwrite(STDOUT, "\n该用户不存在!\n\n"); |
} |
fwrite(STDOUT, "\n---请输入操作\n"); |
fwrite(STDOUT, "---1.返回主菜单\n"); |
fwrite(STDOUT, "---2.修改密码\n"); |
fwrite(STDOUT, "---0.退出系统\n"); |
fwrite(STDOUT, "请输入编号:\n"); |
$stdin=fopen('php://stdin','r'); |
$number=trim(fgets($stdin,100)); |
fclose($stdin); |
switch($number){ |
case 1: |
Menu(); |
break; |
case 1: |
ChangePassword(); |
break; |
case 0: |
exit("已退出系统!\n"); |
default : |
exit("输入错误,已退出系统!\n"); |
break; |
} |
} |
function DeleteUser(){ |
fwrite(STDOUT, "\n---删除用户---\n"); |
fwrite(STDOUT, "\n请输入用户名:"); |
$stdin=fopen('php://stdin','r'); |
$username=trim(fgets($stdin,100)); |
fclose($stdin); |
$content="username:".$username; |
$user=file_get_contents('user.log'); |
if($user) |
{ |
if(strpos($user,$content)!==false){ |
$str_1=substr($user, $start = 0, strpos($user,"username:".$username)); |
$str_2=substr($user, strpos($user,"username:".$username)+strlen("username:".$username)); |
if(strpos($str_2,"username:")){ |
$str_3=substr($str_2, strpos($str_2,"username:")); |
}else{ |
$str_3=''; |
} |
$content=$str_1.$str_3; |
file_put_contents('user.log', $content); |
$user_look_=true; |
}else{ |
$user_look_=false; |
} |
}else{ |
$user_look_=false; |
} |
if($user_look_===false){ |
fwrite(STDOUT, "\n用户不存在!\n\n"); |
} |
fwrite(STDOUT, "---请输入操作\n"); |
fwrite(STDOUT, "---1.返回主菜单\n"); |
fwrite(STDOUT, "---2.删除用户\n"); |
fwrite(STDOUT, "---0.退出系统\n"); |
fwrite(STDOUT, "请输入编号:\n"); |
$stdin=fopen('php://stdin','r'); |
$number=trim(fgets($stdin,100)); |
fclose($stdin); |
switch($number){ |
case 1: |
Menu(); |
break; |
case 2: |
DeleteUser(); |
break; |
case 0: |
exit("已退出系统!\n"); |
default : |
exit("输入错误,已退出系统!\n"); |
} |
} |



