How to connect to remote MYSQL database via php -

-

i have build android app connects remote mysql webserver , retrieve information display purpose. did research coz had no idea start. read article mentions better approach use php script. , didn’t know how server, database , php works, studied php here “http://www.homeandlearn.co.uk/php/php12p1.html” understand , downloaded whampserver testing. on local machine worked fine. main thing don’t understand “how connect remote server/database”. it’s obvious i’m doing stupid, need find out doing wrong. when test php script on local machine in webrowse use "localhost/some.php." when want test same php script on remoter server local machine , how should do? need make changes in configuration file on server side? have done more research before asking question here understand remote server connection in php still don’t understand. have gone through pages within link below: https://www.google.co.uk/search?q=connect+to+remote+mysql+webserver+php&rlz=1c1avsx_engb447gb448&oq=connect+to+remote+mysql+webserver+php&aqs=chrome.0.69i57j69i62l3.19724j0&sourceid=chrome&ie=utf-8#fp=5a2359cf96dc5f79&q=how+to+connect+to+remote+mysql+web+server+php

and appreciated. if question not clear please let me know i'll try explain more. or think of if have connect remote mysql server how , means process , steps involved in that. everyone.

edit

i have created database "dealt3_raj_test" on remote server. , when type "examplewebserver.co.uk/myphpscriptname" in web browser. gives me error "an error occurred , have reached error page"

<?php    $user_name = "dealt3_raj";   $password = "5dn5nh&emd(vcr$dzk";   $database = "dealt3_raj_test";   $server = "examplewebserver.co.uk";   $db_handle = mysql_connect($server, $user_name, $password);   $db_found = mysql_select_db($database, $db_handle);   if($db_handle)     {              print "connected";   }   else   {       print "can not connect server";   }          if ($db_found)    {       print "database found";   }   else    {       print "database not found";   }   ?>

adding onto @user4035's comment, after opening connection, use jdbc in android/java code interact database.

that said, not practice. rather create web service

  1. your application may experience latency/connectivity issues. impact performance.
  2. your mysql server have open remote connections strongly advised against
  3. if android app intended public usage, means database username , password of mysql server reside on everyone's phone using app. encrypted or not makes database server "step less" secure

well answered here on so (jdbc vs web service android)


Comments

Post a Comment

Popular posts from this blog

java - activate/deactivate sonar maven plugin by profile? -

-
i use sonar plugin executes if activated in maven profile. sonar runs on every compile. the problem build fail other team members not have sonar application installed locally. pom.xml checked in team members same copy including sonar configuration, don't want them modify purpose of disabling sonar (they might inadvertently check modified copy in). please advise how configure maven (.m2/settings.xml) and/or pom.xml sonar feature can enabled/disabled local profile. here sonar configuration in each project's pom.xml: <plugin> <groupid>org.codehaus.mojo</groupid> <artifactid>sonar-maven-plugin</artifactid> <version>1.0</version> <executions> <execution> <id>make-sonar</id> <phase>compile</phase> <goals> <goal>sonar</goal> </goals> </execution> </executions> ...
Read more

python - TypeError: can only concatenate tuple (not "float") to tuple -

-
i'm new python, question might easy, anyway, patience: as trying call newton-raphson method calculate implied volatility in black-scholes formula call/put option pricing, first thing is, newton method in scipy.optimize seems calculate function's zeros, in black-scholes formula, want function's value option price, not zero. (i'm new here programming, i'm not sure techniques.) should write function things like: def f(sigma, price): return bsformula(s0,k,r,t,q,sigma) - price then, while calling newton method, takes args=() 1 parameter in function, write this: value = newton(bsprice2, 0.5, args=price) but error message: file "bs.py", line 36, in bsimpvol value = newton(bsprice2, 0.5, args=float(price)) file "/usr/lib/python2.7/dist-packages/scipy/optimize/zeros.py", line 143, in newton q0 = func(*((p0,) + args)) typeerror: can concatenate tuple (not "float") tuple could tell me why that? how fix it? apprecia...
Read more

java - What is the difference between String. and String.this. ? -

-
this question has answer here: meaning of .this , .class in java 2 answers i'll straight point. im still learning bit of syntax , want know difference between code is code a: public class buttonz extends jbutton{ public buttonz(){ settext(new string(string.valueof(i))); } } please ignore fact i undeclared, not lost. code b: public class buttonz extends jbutton{ public buttonz(){ settext(new string(string.this.charat(i))); } } what don't yet understand difference in typing string.this , string. i under assumption when use dot operator on class accessing it's static methods(and/or variables if they're not hidden). i have studied little bit , have concluded when using string. accessing string static methods.. when using string.this. i'm accessing methods class buttonz extendi...
Read more