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• mktime and date questions..

  - by mjboggess

  Hello SO! I am working on a small project and am playing with date() and mktime() in PHP. Compare the two code blocks and their output, notice the second sample adds one to the month in it's first mktime. $monthis = 5; echo date('F', mktime(0,0,0,$monthis,0,0)) . " 1, 2010 is on a " . date("l F", mktime(0, 0, 0, $monthis, 1, 2010)); puts out April 1, 2010 is on a Saturday May but if I change it to $monthis = 5; echo date('F', mktime(0,0,0,$monthis + 1,0,0)) . " 1, 2010 is on a " . date("l F", mktime(0, 0, 0, $monthis, 1, 2010)); puts out May 1, 2010 is on a Saturday May Why do I have to add one to the month in the first mktime so that both emit the same month? Any help or clarity would be appreciated. Thanks :)

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• jQuery accordion expanded

  - by hajder

  I am trying to create an accordion with jQuery from this example http://docs.jquery.com/UI/Accordion The markup is the same, i.e. <div id="accordion"> <h3><a href="#">First header</a></h3> <div>First content</div> <h3><a href="#">Second header</a></h3> <div>Second content</div> </div> And I have script file enqueued correctly, which has the following content: $ = jQuery; $(document).ready(function() { $("#accordion").accordion(); }); But I get this error in the console output TypeError: 'undefined' is not a function (evaluating '$("#accordion").accordion()') The result being all divs are expanded, i.e not clickable.

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• Localized database strings

  - by Steve

  I have a small Grails application that has the following domain: class Meal { String name String description String allergyNote } For localization purposes the three strings should now be available in multiple languages. For example, while an English user would see name="Steak", a Spanish user should see name="Filete" in the output. I was thinking of doing the following: class Language { String isoCode String languageName } class TranslatedString { Language language String translation } but I am not sure how to link the Meals with the TranslatedStrings as it is used for three members, also I would like to use it for other classes (not just Meal) as well (or do I need to have separated tables, i.e. a MealNameTranslated, MealDescriptionTranslated, etc tables?). I know this is probably a stupid question, but I am a beginner and have not been able to figure this out :-(

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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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• What does reorder() function do in Joomla?

  - by Parth

  What does reorder() function do in Joomla? I have a statement for a function of menu "copy" in administrator code for menu as: $curr->reorder( 'menutype = '.$this->_db->Quote($curr->menutype).' AND parent = '.(int) $curr->parent ); as i Have executed this code it has reordered my id to any other position.. I just need to know is this reorder() function a inbuilt function of joomla? If yes, WHat and how does it do what he has done it to my ids ? :( I am Newbie to Joomla PLs help EDIT How can i get the the reordered output just after calling the function?

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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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• rearrange Array according to values order of another Array

  - by Exception

  I have two arrays like below var arr = ["x", "y", "z", "a", "b", "c"]; var tgtArr = [{val:"a"}, {val:"b"}]; It does not need to be as lengthy as Array `arr` This is what I have tried var dest = new Array(arr.length); for(var i = 0; i < arr.length; i++){ for(var k = 0; k < tgtArr.length; k++){ dest[i] = dest[i] || []; if(tgtArr[k].val == arr[i]){ dest[i] = arr[i]; } } } console.log(dest); My Expected output is (for above tgtArr value) [{}, {}, {}, {val:"a"}, {val:"b"}, {}]; if tgtArr is empty Array [{},{},{},{},{},{}] Here is the fiddle. Any alternative for this, it seems not a good way to me as I am iterating through the entire array everytime.

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• Nesting if else statements in PHP to validate a URL

  - by John

  I'm currently writing up a function in order to validate a URL by exploding it into different parts and matching those parts with strings I've defined. This is the function I'm using so far: function validTnet($tnet_url) { $tnet_2 = "defined2"; $tnet_3 = "defined3"; $tnet_5 = "defined5"; $tnet_7 = ""; if($exp_url[2] == $tnet_2) { #show true, proceed to next validation if($exp_url[3] == $tnet_3) { #true, and next if($exp_url[5] == $tnet_5) { #true, and last if($exp_url[7] == $tnet_7) { #true, valid } } } } else { echo "failed on tnet_2"; } } For some reason I'm unable to think of the way to code (or search for the proper term) of how to break out of the if statements that are nested. What I would like to do check each part of the URL, starting with $tnet_2, and if it fails one of the checks ($tnet_2, $tnet_3, $tnet_5 or $tnet_7), output that it fails, and break out of the if statement. Is there an easy way to accomplish this using some of the code I have already?

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• MySql query and table optimisation

  - by Cheeky

  Hi everyone. I am trying to run the following simple query on a table with 500K records. SELECT COUNT(*) AS impressionCount FROM impression WHERE 0 = 0 AND impressionObjectId1 = 'C69A54B8-B828-E2E4-2319A93011DF4120' AND impressionObjectId2 = '1'; This query is taking 10 seconds to run. I have tried creating individual indexes for the impressionObjectId1 and impressionObjectId2 columns, as well as a composite index using both. The composite worked well for a while, but now it is also slow. Here is my table structure: DROP TABLE IF EXISTS `impression`; CREATE TABLE `impression` ( `impressionId` varchar(50) NOT NULL, `impressionObjectId1` varchar(50) NOT NULL, `impressionObjectId2` varchar(50) default NULL, `impressionStampDate` datetime NOT NULL, PRIMARY KEY (`impressionId`), KEY `IX_object` (`impressionObjectId1`,`impressionObjectId2`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC COMMENT='InnoDB free: 191488 kB'; Any advice would be greatly appreciated. Thanks EDIT: When adding an EXPLAIN, this is the output: 1, 'SIMPLE', 'impression', 'ref', 'IX_object', 'IX_object', '105', 'const,const', 304499, 'Using where; Using index'

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• Call External Javascript using php

  - by Ajith

  I am try to add a javascript using php as follows <?php Header("content-type: application/x-javascript"); $serverIP=$_SERVER['REMOTE_ADDR']; echo "document.write(\"Your IP address is: <b>" . $serverIP . "</b>\")"; ?> Here i need to print my output as follows Your IP address is: 127.0.0.1 but it is showing result like document.write("Your IP address is: <b>127.0.0.1</b>"). i am using apache server in ubuntu.What is wrong with me. help me please...

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• How does this code block works?

  - by Justin John

  I can't understand how the following code works. $start = 1; while($start<10){ if ($start&1) { echo "ODD ".$start." <br/> "; } else { echo "EVEN ".$start." <br/> "; } $start++; } The $start&1 will return ODD and EVEN seperately. Output ODD 1 EVEN 2 ODD 3 EVEN 4 ODD 5 EVEN 6 ODD 7 EVEN 8 ODD 9 If we give $start&2 instead of $start&1, it returns with another order. How &1 &2 etc... works here?

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• PHP String to Float

  - by John

  I am not familiar with PHP at all and had a quick question. I have 2 variables @pricePerUnit and @invoicedUnits. Here's the code that is setting these to values: $InvoicedUnits = ((string) $InvoiceLineItem->InvoicedUnits); $pricePerUnit = ((string) $InvoiceLineItem->PricePerUnit); If I output this, I get the correct values. Lets say 5000 invoiced units and 1.00 for price. Now, I need to show the total amount spent. When I multiply these two together it doesn't work (as expected, these are strings). But I have no clue how to parse/cast/convert variables in PHP. What should I do?

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• Entering If Statement Despite Not Meeting Condition

  - by msmf14

  This is a specific problem, but I can't seem to figure out what is wrong. else if (X == 2) //move left { if (Level[X-1][Y] == 0); { cout << Level[X-1][Y] << "\n"; cout << "\n MOVING LEFT from RIGHT\n"; //PROBLEM IS HERE Level[X][Y] = 1; // block it X = X - 1; moved = 1; } } What I am doing is I am checking if Level[X-1][Y] is 1, indicating a column, so I can not move my player there. However for some reason, despite it being 1 and not 0 (as indicated by the output), the IF statement is still accessed. Any help will be appreciated.

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• Obtaining frame pointer in C

  - by assketchum

  I'm trying to get the FP in my C program, I tried two different ways, but they both differ from what I get when I run GDB. The first way I tried, I made a protocol function in C for the Assembly function: int* getEbp(); and my code looks like this: int* ebp = getEbp(); printf("ebp: %08x\n", ebp); // value i get here is 0xbfe2db58 while( esp <= ebp ) esp -= 4; printf( "ebp: %08x, esp" ); //value i get here is 0xbfe2daec My assembly code getEbp: movl %ebp, %eax ret I tried making the prototype function to just return an int, but that also doesn't match up with my GDB output. We are using x86 assembly. EDIT: typos, and my getEsp function looks exactly like the other one: getEsp: movl %esp, %eax ret

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• c++ constructors

  - by aharont

  i wrote this code: class A { public: A(){d=2.2;cout<<d;} A(double d):d(d){cout<<d;} double getD(){return d;} private: double d; }; class Bing { public: Bing(){a=A(5.3);} void f(){cout<<a.getD();} private: A a; }; int main() { Bing b; b.f(); } i get the output: 2.2 5.3 5.3 instead of 5.3 5.3. it's something in the constructor.... wahy am i getting this? how can i fix it?

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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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• Writing out to a file in scheme

  - by Ceelos

  The goal of this is to check if the character taken into account is a number or operand and then output it into a list which will be written out to a txt file. I'm wondering which process would be more efficient, whether to do it as I stated above (writing it to a list and then writing that list out into a file) or being writing out into a txt file right from the procedure. I'm new with scheme so I apologize if I am not using the correct terminology (define input '("3" "+" "4")) (define check (if (number? (car input)) (write this out to a list or directly to a file) (check the rest of file))) Another question I had in mind, how can I make it so that the check process is recursive? I know it's a lot of asking but I've getting a little frustrated with checking out the methods that I have found on other sites. I really appreciate the help!

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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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• Create xml file based on xPath from Excel with VBA

  - by user1626236

  I've found some items that seem to dance around what I'm looking to do. I'm not a full-fledged programmer, but have been creating my own macros in Excel. I'm trying to create one now that will help me create the structure of an XML file. I want to go down the list of XPaths, and for each one create any parents in the path as needed as well as the child and its value. I'll be adding another aspect to filter it to the fields I want, but the part I'm struggling with is the logic to check if each parent node exists, create it if needed, then add the child and its value. Bonus would be if the output file were formatted with each node on a new line, and more so if it child nodes were indented from parent, but just creating it is my primary concern. Any help would be much appreciated, this has to potential to save me a lot of time.

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• C++ vector that *doesn't* initialize its members?

  - by Mehrdad

  I'm making a C++ wrapper for a piece of C code that returns a large array, and so I've tried to return the data in a vector<unsigned char>. Now the problem is, the data is on the order of megabytes, and vector unnecessarily initializes its storage, which essentially turns out to cut down my speed by half. How do I prevent this? Or, if it's not possible -- is there some other STL container that would avoid such needless work? Or must I end up making my own container? (Pre-C++11) Note: I'm passing the vector as my output buffer. I'm not copying the data from elsewhere.

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• Matching two sections same number of times

  - by Leszczu

  Hello, i need a HTML to parse: <span>some text<span><span><span>text</span></span></span></span> I need to remove unnecessary <span> occurrences, so that output is: <span>some text<span>text</span></span> I wrote a regex, which does this once: /<SPAN>[^<]*<\/SPAN>/i How to make this work same number of times on both <span> and </span>?

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• Setting language/culture for reporting services report rendered through C#

  - by Chris Latta

  I have written a report renderer in C# that runs and attaches reports to an email. This is all working great, except the date format of the parameters are incorrect when listed in the report title. All the reports have their language set to =User!Language and the parameters are output using the FormatDateTime function to format according to the user's regional settings. I am basically using the rendering method described here on MSDN. This all works great when the reports are run through the browser. However, when I render the report from C# it uses en-US date format. The report server's regional settings are set appropriately to the correct region as are the regional settings of the computer the C# progam is running on.. What property do I need to set in my C# program for the report to be rendered using my appropriate language/culture?

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• How to compare Rails ''executables" before and after refactor?

  - by Kyle Heironimus

  In C, I could generate an executable, do an extensive rename only refactor, then compare executables again to confirm that the executable did not change. This was very handy to ensure that the refactor did not break anything. Has anyone done anything similar with Ruby, particularly a Rails app? Strategies and methods would be appreciated. Ideally, I could run a script that output a single file of some sort that was purely bytecode and was not changed by naming changes. I'm guessing JRuby or Rubinus would be helpful here.

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• How to find distance between two geopoints in c using calculateDistance(const CWaypoint& wp)

  - by Harsha

  void getAllDataByPointer(string *pname,double *platitude, double *plongitude); void getAllDataByReference(string &pname,double &platitude, double &plongitude); double calculateDistance(const CWaypoint& wp); void print(int format); bool less(const CWaypoint& wp_right); CWaypoint add(const CWaypoint& wp_right); These are the functions I am using. I have the values as output but how to call the latitude values of two different cities so that I can use the following formula distance = ERADIUS * (acos(sin(latitude_1)*sin(latitude_2) + cos(latitude_1) * cos(latitude_2)*cos(longitude_2 - longitude_1)));

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• When is "this" pointer initialized in C++?

  - by skydoor

  Hi I have a question about this pointer, when an object is constructed, when it is initialized? Which means, when can I use it? The virtual table is constructed in the constructor, is the same with this pointer? For example, I have a code like this. The output is 8. Does it mean that before the constructor is entered, this pointer is already initialized? class A{ public: A() { cout<<sizeof(*this);} int i; int *p; }; int main() { A a; } If it is true, what else would happen before the constructor is entered? If it is not true, when is the this pointer initialized?

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