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  • Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given in

    - by alundra00
    hi i am new to php and now i having problem with login Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given in... Warning: mysql_num_rows() expects parameter 1 to be resource, boolean given in.... coding php: <?php include ("config/koneksi.php"); include ("config/library.php"); $pass = md5($_POST['password']); $login = mysql_query("SELECT * FROM user WHERE id_user='$_POST[username]' AND sesi='$pass'"); $found = mysql_num_rows($login); //error $r = mysql_fetch_array($login); //error if ($r){ session_start(); session_register("username"); session_register("sesi"); session_register("role"); $_SESSION[username] = $r[id_user]; $_SESSION[sesi] = $r[sesi]; $_SESSION[role]= $r[role]; header ('location:home.php'); }

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  • Is there a method to retrieve the file name of a class?

    - by Dran Dane
    Hello Is there a method to retrieve the file name of a class? Specifically I would like to create a static method (CreateLink) in a base class (BasePage) to automatically return the path and filename of the page called. I code in .C# ASP.NET private const string TEMPLATE = "~/One.aspx"; public static HyperLink CreateLink() { HyperLink link = new HyperLink(); link.Text = "Click here"; link.NavigateUrl = String.Format(TEMPLATE); return link; } Is it possible to avoid the use of TEMPLATE hardcoded variable? Is it possible to retrieve the One.aspx path from file name and location?

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  • Loading external content with jquery or iframe?

    - by nailuenlue
    Hiho, There's an existing website that i need to include into another site which goes like this: a.mysite.com and i need to fetch content from this site in my www.mysite.com website... As i need to access the content of the iframe the Same origin policy produces a problem here. What i did was to configure mod_proxy on Apache to proxy pass all requests from www.mysite.com/a to a.mysite.com This will work fine...but my problem is that im not sure what the best way would be to include those pages. 1. Idea As the content of the iframe is a full featured site with a top navigation...left navigation etc....i would need to change the page template to only show the content box to be able to integrate that page in the iframe. 2. Idea I could just load the DIV where the content lies through JQuery.load() and integrate it into my site. What is the best way to accomplish such a task? How bad is both ideas from the SEO point of view?

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  • Can func get the lineno who call itself? (C/C++)

    - by kingkai
    Hi, I've a problem , as the following code discribe itself. 1 #include<stdlib.h> 2 #include<stdio.h> 3 void log() 4 { 5 printf("Log [Line:%d]\n",__LINE__); 6 } 7 int main() 8 { 9 log(); 10 log(); 11 } The expected result is Log [Line:9] Log [Line:10] But, the fact is Log [Line:5] Log [Line:5] No surprising, LINE has been substituted at the pre-process stage as 5. My Question is, how to design the log function to get the expected result? Thanks!

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  • C++0x error : variable 'std::packaged_task<int> pt1' has initializer but incomplete type

    - by Eternal Learner
    Hi All, Below is a simple program in c++0x that makes use of packaged_task and futures. while compiling the program i get error : variable 'std::packaged_task pt1' has initializer but incomplete type the program is below #include #include using namespace std; int printFn() { for(int i = 0; i < 100; i++) { cout << "thread " << i << endl; } return 1; } int main() { packaged_task<int> pt1(&printFn); future<int> fut = pt1.get_future(); thread t(move(pt1)); t.detach(); int value = fut.get(); return 0; }

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  • Redundant naming in C/C++ typedefs/structs

    - by bloomy
    #include <stdio.h> #include <string.h> const int NAMELEN=30; const int MAXCLASSSIZE=10; typedef struct StudentRec { char lastname[NAMELEN]; char firstname[NAMELEN]; long int ID; int finalmark; }Student; I'm new to coding..and I have a question about why there is Student; after the bracket.. is it a format that we have to follow.

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  • I just learned about C++ functions; can I use if statements on function return values?

    - by Sagistic
    What I am confused on is about the isNumPalindrome() function. It returns a boolean value of either true or false. How am I suppose to use that so I can display if it's a palindrome or not. For ex. if (isNumPalindrome == true) cout << "Your number is a palindrome"; else cout << "your number is not a palindrome."; #include "stdafx.h" int _tmain(int argc, _TCHAR* argv[]) { return 0; } #include <iostream> #include <cmath> using namespace std; int askNumber(); bool isNumPalindrome(); int num, pwr; int main() { askNumber(); return 0; } bool isNumPalindrome() { int pwr = 0; if (num < 10) return true; else { while (num / static_cast<int>(pow(10.0, pwr)) >=10) pwr++; while (num >=10) { int tenTopwr = static_cast<int>(pow(10.0, pwr)); if ((num / tenTopwr) != (num% 10)) return false; else { num = num % tenTopwr; num = num / 10; pwr = pwr-2; } } return true; } } int askNumber() { cout << "Enter an integer in order to determine if it is a palindrome: " ; cin >> num; cout << endl; if(isNumPalindrome(num)) { cout << "It is a palindrome." ; cout << endl; } else { cout << "It is not a palindrome." ; cout << endl; } return num; }

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  • Trying to exlcude VTI* paths in MSIDXS sql select statement

    - by Catdirt
    Hi, using a c# asp.net page, building a SQL query string to run against an index server catalog: string SQL = "SELECT doctitle, vpath, Path, Write, Size, Rank "; SQL += "FROM \"" + strCatalog + "\"..SCOPE() "; SQL += "WHERE"; SQL += " CONTAINS(Contents, '" + strQP + "') "; SQL += "AND NOT CONTAINS(Path, '\"_vti_\"') "; SQL += "AND NOT CONTAINS(FileName, '\".ascx\" OR \".config\" OR \".css\"') "; SQL += "ORDER BY Rank DESC"; Seems to work fine, except it will return results in the _vti_ directories which I am trying to avoid. Edit: All but asked question, so to be technical: How can I search the index and have it not return files from the vti folders? Switching to use an ixsso query object is possible, but i'd rather avoid it for this particular instance.

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  • Understanding behaviour of read() and write()

    - by neo730
    hi i am a student and just start learning low level c programming.i tried to understand read() and write() methods with this program. #include <unistd.h> #include <stdlib.h> main() { char *st; st=calloc(sizeof(char),2);//allocate memory for 2 char read(0,st,2); write(1,st,2); } i was expecting that it would give segmentation fault when i would try to input more than 2 input characters.but when i execute program and enter " asdf " after giving " as " as output it executes "df" command. i want to know why it doesn't give segmentation fault when we assign more than 2 char to a string of size 2.and why is it executing rest(after 2 char)of input as command instead of giving it as output only? also reading man page of read() i found read() should give EFAULT error,but it doesn't. I am using linux.

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  • "...redeclared as different kind of symbol"?

    - by CodeNewb
    #include <stdio.h> #include <math.h> double integrateF(double low, double high) { double low = 0; double high = 20; double delta_x=0; double x, ans; double s = 1/2*exp((-x*x)/2); for(x=low;x<=high;x++) delta_x = x+delta_x; ans = delta_x*s; return ans; } It says that low and high are "redeclared as different type of symbol" and I don't know what that means. Basically, all I'm doing here (READ: trying) is integrating from low (which I set to 0) to high (20) to find the Riemann sum. The for loop looks kinda trippy too...I'm so lost.

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  • MediaType of REST

    - by user357243
    Hi, I am beginner in REST web services. I wrote a program of REST to display the HTML or XML. The @Path annotation's value is @Path("{typeDocument}"). There are two methods for GET : @GET @Produces(MediaType.TEXT_XML) public String getXml(@PathParam("typeDocument") String typeDocument) to display XML file, and @GET @Produces(MediaType.TEXT_HTML) public String getHtml(@PathParam("typeDocument") String typeDocument) to display HTML. The browser Firefox always excutes getHtml() when URL is either http://localhost:8080/sources/html or localhost:8080/sources/xml But IE always excutes getXml(). How to excute the correct method, as defined by URL, in different browser ? Thanks a lot.

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  • trying to use PHP extract() within a function

    - by samuelf
    Hi, I have the two following files: main.php include("functions.php") __EXTRACT(); echo $testvar; functions.php function __EXTRACT(){ extract($_POST, EXTR_SKIP); } However, having a form with a textbox called testvar I can't get the extract function to extract the data.. if I remove the function call and insert it the extract statement directly into main.php it works. The include is not a problem as other functions in it works. Any ideas? Cheers

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  • including .h files.

    - by Max
    Suppose I have two .h files: A.h and B.h. Moreover, A.h includes B.h itself: B.h - declares class B. class B { ... }; A.h - declares class A, which uses class B. #include B.h class A { void SomeFunction(const B& b); }; Now, I have some .cpp file, that uses both A and B classes (B class maybe used not only in A::SomeFunction(B)) What are the pluses to include both A.h and B.h (instead of only A.h) from the perspective of design-patterns and coding style.

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  • Implementing an Online Waiting Room

    - by saalon
    My organization is building a new version of our ticketing site and is looking for the best way to build an online waiting room when the number of users in our purchase path exceeds a certain limit. The best version of this queue would let new users in after existing users have either completed their purchase or have exceeded a timeout limit after entering the path. I'm trying to get an idea of how this has been implemented by other organizations. Has anyone out there done something similar or have any experience with this? We have some ideas, but I'd like to get a sense of what solutions have been tried and what problems those solutions have run up against. Just to be complete, this site is being built in Ruby on Rails, though I'd love to hear about how people have solved this regardless of platform.

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  • floating point exception in C++ code !

    - by mekasperasky
    #include<stdio.h> #include<math.h> int main () { FILE *fp; fp=fopen("output","w"); float t,y=0,x=0,e=5,f=1,w=1; for (t=0;t<10;t=t+0.01) { if( y==inf && y== nan) break; fprintf(fp,"%lf\t%lf\n",y,x); y = y + ((e*(1 - x*x)*y) - x + f*cos(w*t))*t; x = x + y*t; } return (0); } why is the ouput giving infinite and NAN values?

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  • Form Login Error

    - by ilp
    I'm having issues with a login form for my website. At the top of the login.php form I have this <?php if (isset($_SESSION['username'])){ header("Location: http://myurl/"); die;}?> <?php require 'includes/dbconnect.php' ; ?> <?php require 'includes/header.php'; ?> and when login is successful I redirect them to header('Location: http://myrul/'); Header.php has <?php session_start(); ?> at the top. When I tried to login, I get this error message: Warning: Cannot modify header information - headers already sent by (output started at /path/to/file/login.php:7) in /path/to/file/login.php on line 39. login.php:7 == <?php require 'includes/header.php'; ?> while Line 39 in login.php is == header('Location: http://myrul/'); Please where is the problem

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  • Convert "minutes since midnight" to time (convert to NSDate?)

    - by Canada Dev
    I am getting some open/closed times as integers since midnight. For example: "1140" = 19:00 (or 7 pm if you will) or; "570" = 9:30 (or 9.30 am) I can easily get the time in European format, just by doing doing a simple calculation and formatting: [NSString stringWithFormat:@"%d:00", (T / 60)] However, this doesn't work for half hours, such as "570 minutes since midnight". Also, I run into problems if I want to include a bit of localization, because some people may prefer AM/PM times. Does NSDate include a method for easily implementing times using the above? Or can anyone tell me how I would at least convert a time like "570 minutes since midnight" to 9:30 properly. Right now it obviously won't write the :30 part. Thank you

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  • [MSBuild] How to overwrite ItemGroup (like what we do with PropertyGroup)

    - by Nam Gi VU
    I have a script snippet looks like below: <ItemGroup> <files Include="*.txt"></files> </ItemGroup> <Message Text="@(files)"> <ItemGroup> <files Include="*.xml"></files> </ItemGroup> <Message Text="@(files)"> I want that in the second Message output, only *.xml is printed. Currently both of *.txt and *.xml are printed which is what I don't want to. So, my question is how can we overwrite the item files in the second print script? Please help!

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  • C++ inheritance doubt

    - by Poiuyt
    Can you explain why this is not allowed, #include <stdio.h> class B { private: int a; public: int a; }; int main() { return 0; } while this is? #include <stdio.h> class A { public: int a; }; class B : public A{ private: int a; }; int main() { return 0; } In both the cases, we have one public and one private variable named a in class B.

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  • How to change the elements in the page base on user who is logged in

    - by user225269
    Please give me an idea on how to display elements in a page depending on who is logged in. For example, a user or an administrator. I'm thinking of something like this but I get a parse error, what do I lack in this code?: <?php session_start(); if (!(isset($_SESSION['loginAdmin']) && $_SESSION['loginAdmin'] != '')) { header ("Location: loginam.php"); } if else (!(isset($_SESSION[['loginAdmin']) && $_SESSION['loginAdmin'] =='')) { ?> <?php include('head2.php'); ?> } <?php if (!(isset($_SESSION['login']) && $_SESSION['login'] != '')) { header ("Location: login.php"); } if else (!(isset($_SESSION[['login']) && $_SESSION['login'] =='')) { ?> <?php include('head3.php'); } ?> Please help

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  • Is there any difference these two pieces of code?

    - by Poiuyt
    #include<stdio.h> class A {public: int a; }; class B: public A {private: int a;}; int main(){ B b; printf("%d", b.a); return 0; } #include<stdio.h> class A {public: int a; }; class B: private A {}; int main(){ B b; printf("%d", b.a); return 0; } I ask because I get different errors: error: 'int B::a' is private error: 'int A::a' is inaccessible Apart from what the errors might reveal, is there any difference at all in the behaviour of these two pieces of code?

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  • Can typeid() be used to pass a function?

    - by Kerb_z
    I tried this and got the output as: void Please explain the following Code: #include <cstdio> #include <typeinfo> using namespace std ; void foo() { } int main(void) { printf("%s", typeid(foo()).name());// Please notice this line, is it same as typeid( ).name() ? return 0; } AFAIK: The typeid operator allows the type of an object to be determined at run time. So, does this sample code tell us that a function that returns void is of *type void*. I mean a function is a method and has no type. Correct?

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  • sorting set of five string in alphabetical oder throwing warning?

    - by rost rost
    sorting set of five string in alphabetical oder throwing warning ?my code is below please help me to fix it #include<stdio.h> #include<string.h> int main() { char a[5][20],t[20]; int i,j; printf("enter 5 string\n") scanf("%s",a); for(i=1;i<5;i++) { for(j=1;j<5;j++) { if(strcmp(a[j-1],a[j])>0) { strcpy (t,a[j-1]); strcpy (a[j-1],a[j]); strcpy(a[j],t); } } } for(i=1;i<5;i++) printf("%s\n",a[i]); } ~

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  • Picking encryption cipher for mcrypt

    - by Autolycus
    I have few questions about this code: <?php $iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB); $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND); $key = "This is a very secret key"; $text = file_get_contents('path/to/your/file'); echo strlen($text) . "\n"; $crypttext = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, $text, MCRYPT_MODE_ECB, $iv); file_put_contents('path/to/your/file', $crypttext); ?> It encrypts the file just fine, however it adds additional nulls at the end, so if I encrypt: a test string is this one and here is a new line once decrypted becomes: a test string is this one and here is a new line 000000000000000 What's going on? Second, is MCRYPT_RIJNDAEL_256 compatible with AES-128? Finally, how would I let another party decrypt a file I've encrypted? They would need to know which encryption was used and I am not sure what to tell them.

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