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  • Count the number of times a string appears within a string...

    - by onekidney
    I simply have a string that looks something like this: "7,true,NA,false:67,false,NA,false:5,false,NA,false:5,false,NA,false" All I want to do is to count how many times the string "true" appears in that string. I'm feeling like the answer is something like String.CountAllTheTimesThisStringAppearsInThatString() but for some reason I just can't figure it out. Help?

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  • Assembly GDB Print String

    - by Ken
    So in assembly I declare the following String: Sample db "This is a sample string",0 In GDB I type "p Sample" (without quotes) and it spits out 0x73696854. I want the actual String to print out. So I tried "printf "%s", Sample" (again, without quotes) and it spits out "Cannot access memory at address 0x73696854." Short version: How do I print a string in GDB?

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  • Java String object creation

    - by Ajay
    Hi, 1) What is difference in thers two statements: String s1 = "abc"; and String s1 = new String("abc") 2) as i am not using new in first statement, how string object will be created Thanks

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  • Make a String text Bold in Java Android

    - by meskh
    I want to make Habit Number: bold , I tried the HTML tag but it didn't work. I did some research but couldn't find any. Hope someone is able to help me. Thanks! String habitnumber = "Habit Number: " + String.valueOf(habitcounter); String Title = habit.getTitle(); String description = habit.getDescription(); //Set text for the row tv.setText(habitnumber+ "\n" + Title + " \n" + description + "\n --------------------");

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  • c++ std::ostringstream vs std::string::append

    - by NickSoft
    In all examples that use some kind of buffering I see they use stream instead of string. How is std::ostringstream and << operator different than using string.append. Which one is faster and which one uses less resourses (memory). One difference I know is that you can output different types into output stream (like integer) rather than the limited types that string::append accepts. Here is an example: std::ostringstream os; os << "Content-Type: " << contentType << ";charset=" << charset << "\r\n"; std::string header = os.str(); vs std::string header("Content-Type: "); header.append(contentType); header.append(";charset="); header.append(charset); header.append("\r\n"); Obviously using stream is shorter, but I think append returns reference to the string so it can be written like this: std::string header("Content-Type: "); header.append(contentType) .append(";charset=") .append(charset) .append("\r\n"); And with output stream you can do: std::string content; ... os << "Content-Length: " << content.length() << "\r\n"; But what about memory usage and speed? Especially when used in a big loop. Update: To be more clear the question is: Which one should I use and why? Is there situations when one is preferred or the other? For performance and memory ... well I think benchmark is the only way since every implementation could be different. Update 2: Well I don't get clear idea what should I use from the answers which means that any of them will do the job, plus vector. Cubbi did nice benchmark with the addition of Dietmar Kühl that the biggest difference is construction of those objects. If you are looking for an answer you should check that too. I'll wait a bit more for other answers (look previous update) and if I don't get one I think I'll accept Tolga's answer because his suggestion to use vector is already done before which means vector should be less resource hungry.

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  • What is the structure of network managers system-connections files?

    - by Oyks Livede
    could anyone list the complete structure of the configuration files, which network manager stores for known networks in /etc/NetworkManager/system-connections for known networks? Sample (filename askUbuntu): [connection] id=askUbuntu uuid=81255b2e-bdf1-4bdb-b6f5-b94ef16550cd type=802-11-wireless [802-11-wireless] ssid=askUbuntu mode=infrastructure mac-address=00:08:CA:E6:76:D8 [ipv6] method=auto [ipv4] method=auto I would like to create some of them by my own using a script. However, before doing so I would like to know every possible option. Furthermore, this structure seems somehow to resemble the information you can get using the dbus for active connections. dbus-send --system --print-reply \ --dest=org.freedesktop.NetworkManager \ "$active_setting_path" \ # /org/freedesktop/NetworkManager/Settings/2 org.freedesktop.NetworkManager.Settings.Connection.GetSettings Will tell you: array [ dict entry( string "802-11-wireless" array [ dict entry( string "ssid" variant array of bytes "askUbuntu" ) dict entry( string "mode" variant string "infrastructure" ) dict entry( string "mac-address" variant array of bytes [ 00 08 ca e6 76 d8 ] ) dict entry( string "seen-bssids" variant array [ string "02:1A:11:F8:C5:64" string "02:1A:11:FD:1F:EA" ] ) ] ) dict entry( string "connection" array [ dict entry( string "id" variant string "askUbuntu" ) dict entry( string "uuid" variant string "81255b2e-bdf1-4bdb-b6f5-b94ef16550cd" ) dict entry( string "timestamp" variant uint64 1383146668 ) dict entry( string "type" variant string "802-11-wireless" ) ] ) dict entry( string "ipv4" array [ dict entry( string "addresses" variant array [ ] ) dict entry( string "dns" variant array [ ] ) dict entry( string "method" variant string "auto" ) dict entry( string "routes" variant array [ ] ) ] ) dict entry( string "ipv6" array [ dict entry( string "addresses" variant array [ ] ) dict entry( string "dns" variant array [ ] ) dict entry( string "method" variant string "auto" ) dict entry( string "routes" variant array [ ] ) ] ) ] I can create new setting files using the dbus (AddSettings() in /org/freedesktop/NetworkManager/Settings) passing this type of input, so explaining me this structure and telling me all possible options will also help. Afaik, this is a Dictionary{String, Dictionary{String, Variant}}. Will there be any difference creating config files directly or using the dbus?

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  • How can I identify unknown query string fragments that are coming to my site?

    - by Jon
    In the Google Analytics content overview for a site that I work on, the home page is getting many pageviews with some unfamiliar query string fragments, example: /?jkId=1234567890abcdef1234567890abcdef&jt=1&jadid=1234567890&js=1&jk=key words&jsid=12345&jmt=1 (potentially identifiable IDs have been changed) It clearly looks like some kind of ad tracking info, but noone who works on the site knows where it comes from, and I haven't been able to find any useful information from searching. Is there some listing of common query string keys available anywhere? Alternatively, does anyone happen to know where these keys (jkId, jt, jadid, js, jk, jsid and jmt) might come from?

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  • Array on servers which receive several hundred GB of data a day

    - by Matthew
    This is hopefully a simple question. Right now we are deploying servers which will serve as data warehouses. I know with raid 5 the best practice is 6 disks per raid 5. However, our plan is to use RAID 10 (both for performance and safety). We have a total of 14 disks (16 actually, but two are being used for OS). Keeping in mind that performance is very much an issue, which is better - doing several raid 1's? Do one large raid 10? One large raid 10 had been our original plan, but I want to see if anyone has any opinions I haven't thought of. Please note: This system was designed for using Raid 1+0, so losing half of the raw storage capacity is not an issue. Sorry i hadn't mentioned that initially. The concern is more whether or not we want to use one large Raid 1+0 containing all 14 disks, or several smaller raid 1+0's and then stripe across them using LVM. I know the best practice for higher raid levels is to never use more than 6 disks in an array.

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  • cannot convert from 'cli::array<Type> ^' to 'cli::array<Type> ^[]'

    - by user1576628
    I'm pretty new to C++/CLI and I am trying to convert a System::String to a System::Char array. Here's what I have so far: private: System::Void modeToolStripMenuItem_Click(System::Object^ sender, System::EventArgs^ e) { Mode frmMode; if(frmMode.ShowDialog() == System::Windows::Forms::DialogResult::OK){ array <Char>^ load [] = gcnew array<Char>(txtbxName->Text->ToCharArray()); } } txtbxName is a textbox inside a the form. Supposedly, this should work, but I get the compiler error: error C2440: cannot convert from 'cli::array<Type> ^' to 'cli::array<Type> ^[]' for the fourth line of the snippet.

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  • Ruby Built In Method to Create Multidimensional Array From Single Dimensioned Array

    - by Ell
    If I have an array like this: [0, 1, 2, 3, 4, 5], is there a built in method to create this: [[0, 1, 2], [3, 4, 5]] given a width of 3? If there is no built in method, how could I improve on this? def multi_to_single(array, width) return [].tap{|md_array| (array.length.to_f / width).ceil.times {|y| row = (array[(y*width), width]) md_array.push( row + Array.new(width - row.length)) } } end I feel like I have missed something obvious because I haven't programmed ruby in a while! Thanks in advance, ell. EDIT: It needs to be in the core library, so no ruby on rails or anything.

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  • Best way to deallocate an array of array in javascript

    - by andre.dias
    What is the best way to deallocate an array of array in javascript to make sure no memory leaks will happen? var foo = new Array(); foo[0] = new Array(); foo[0][0] = 'bar0'; foo[0][1] = 'bar1'; foo[1] = new Array(); ... delete(foo)? iterate through foo, delete(foo[index]) and delete(foo)? 1 and 2 give me the same result? none?

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  • Convert PHP array into Key => Value Array

    - by Feature
    Total PHP Noob and I couldn't find an answer to this specific problem. Hope someone can help! $myvar is an array that looks like this: Array ( [aid] = Array ( [0] = 2 [1] = 1 ) [oid] = Array( [0] = 2 [1] = 1 ) ) And I need to set a new variable (called $attributes) to something that looks like this: $attributes = array($myvar['aid'][0] => $myvar['oid'][0], $myvar['aid'][1] => $myvar['oid'][1], etc...); And, of course, $myvar may contain many more items... How do I iterate through $myvar and build the $attributes variable?

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  • PHP Session Array Value keeps showing as "Array"

    - by Nerathas
    Hello, When sending data from a form to a second page, the value of the session is always with the name "Array" insteed of the expected number. The data should get displayed in a table, but insteed of example 1, 2, 3 , 4 i get : Array, Array, Array. (A 2-Dimensional Table is used) Is the following code below a proper way to "call" upon the stored values on the 2nd page from the array ? $test1 = $_SESSION["table"][0]; $test2 = $_SESSION["table"][1]; $test3 = $_SESSION["table"][2]; $test4 = $_SESSION["table"][3]; $test5 = $_SESSION["table"][4]; What exactly is this, and how can i fix this? Is it some sort of override that needs to happen? Best Regards.

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  • What is the fastest way to Initialize a multi-dimensional array to non-default values in .NET?

    - by AMissico
    How do I initialize a multi-dimensional array of a primitive type as fast as possible? I am stuck with using multi-dimensional arrays. My problem is performance. The following routine initializes a 100x100 array in approx. 500 ticks. Removing the int.MaxValue initialization results in approx. 180 ticks just for the looping. Approximately 100 ticks to create the array without looping and without initializing to int.MaxValue. Routines similiar to this are called a few hundred-thousand to several million times during a "run". The array size will not change during a run and arrays are created one-at-a-time, used, then discarded, and a new array created. A "run" which may last from one minute (using 10x10 arrays) to forty-five minutes (100x100). The application creates arrays of int, bool, and struct. There can be multiple "runs" executing at same time, but are not because performance degrades terribly. I am using 100x100 as a base-line. I am open to suggestions on how to optimize this non-default initialization of an array. One idea I had is to use a smaller primitive type when available. For instance, using byte instead of int, saves 100 ticks. I would be happy with this, but I am hoping that I don't have to change the primitive data type. public int[,] CreateArray(Size size) { int[,] array = new int[size.Width, size.Height]; for (int x = 0; x < size.Width; x++) { for (int y = 0; y < size.Height; y++) { array[x, y] = int.MaxValue; } } return array; } Down to 450 ticks with the following: public int[,] CreateArray1(Size size) { int iX = size.Width; int iY = size.Height; int[,] array = new int[iX, iY]; for (int x = 0; x < iX; x++) { for (int y = 0; y < iY; y++) { array[x, y] = int.MaxValue; } } return array; } Down to approximately 165 ticks after a one-time initialization of 2800 ticks. (See my answer below.) If I can get stackalloc to work with multi-dimensional arrays, I should be able to get the same performance without having to intialize the private static array. private static bool _arrayInitialized5; private static int[,] _array5; public static int[,] CreateArray5(Size size) { if (!_arrayInitialized5) { int iX = size.Width; int iY = size.Height; _array5 = new int[iX, iY]; for (int x = 0; x < iX; x++) { for (int y = 0; y < iY; y++) { _array5[x, y] = int.MaxValue; } } _arrayInitialized5 = true; } return (int[,])_array5.Clone(); } Down to approximately 165 ticks without using the "clone technique" above. (See my answer below.) I am sure I can get the ticks lower, if I can just figure out the return of CreateArray9. public unsafe static int[,] CreateArray8(Size size) { int iX = size.Width; int iY = size.Height; int[,] array = new int[iX, iY]; fixed (int* pfixed = array) { int count = array.Length; for (int* p = pfixed; count-- > 0; p++) *p = int.MaxValue; } return array; }

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  • Array comparion for multidimensinal array in php

    - by Learner
    Array 1 = pr($plan_data); Array ( [0] => Array ( [AveragePrice] => 9.631161 [EFLUrl] => http://www.championenergyservices.com/register/EFL_API.asp?rateid=161456 [EarlyTerminationFee] => 150 [HurricaneRecovery] => 0.132 [MeterSurcharge] => 3.05 [OffCycle] => 5 [PUCAssessment] => 0.00167 [PlanDescription] => Savings Champ-6 [PlanId] => 57 [PlanIssueDate] => 12/10/2012 [PlanMonthlyFee] => 0 [PlanName] => PN1058 [PlanRate] => 9.3 [PlanRenewablePercent] => 7.2 [PlanTerm] => 6 [PriorityMoveIn] => 36 [ProviderDisplayName] => CenterPoint Energy [ProviderId] => 21 [ProviderInternalName] => CNP_COAST [RateId] => 161456 [RegularMoveIn] => 16 [TDSPPassThrough] => 0.03791 [TOCUrl] => http://www.championenergyservices.com/register/termsandconditions.asp?rateid=161456 [YRACUrl] => http://www.championenergyservices.com/register/\affiliatefiles\YRAC.PDF [provider] => ces [ProductType] => Fixed [Rep] => Champion Energy Services [Zone] => 77479 ) [1] => Array ( [AveragePrice] => 10.1311693 [EFLUrl] => http://www.championenergyservices.com/register/EFL_API.asp?rateid=161458 [EarlyTerminationFee] => 150 [HurricaneRecovery] => 0.132 [MeterSurcharge] => 3.05 [OffCycle] => 5 [PUCAssessment] => 0.00167 [PlanDescription] => Savings Champ-12 [PlanId] => 59 [PlanIssueDate] => 12/10/2012 [PlanMonthlyFee] => 0 [PlanName] => PN1060 [PlanRate] => 9.8 [PlanRenewablePercent] => 7.2 [PlanTerm] => 12 [PriorityMoveIn] => 36 [ProviderDisplayName] => CenterPoint Energy [ProviderId] => 21 [ProviderInternalName] => CNP_COAST [RateId] => 161458 [RegularMoveIn] => 16 [TDSPPassThrough] => 0.03791 [TOCUrl] => http://www.championenergyservices.com/register/termsandconditions.asp?rateid=161458 [YRACUrl] => http://www.championenergyservices.com/register/\affiliatefiles\YRAC.PDF [provider] => ces [ProductType] => Fixed [Rep] => Champion Energy Services [Zone] => 77479 ) [2] => Array ( [AveragePrice] => 10.4311743 [EFLUrl] => http://www.championenergyservices.com/register/EFL_API.asp?rateid=161459 [EarlyTerminationFee] => 150 [HurricaneRecovery] => 0.132 [MeterSurcharge] => 3.05 [OffCycle] => 5 [PUCAssessment] => 0.00167 [PlanDescription] => Green Power-12 [PlanId] => 60 [PlanIssueDate] => 12/10/2012 [PlanMonthlyFee] => 0 [PlanName] => PN1061 [PlanRate] => 10.1 [PlanRenewablePercent] => 100 [PlanTerm] => 12 [PriorityMoveIn] => 36 [ProviderDisplayName] => CenterPoint Energy [ProviderId] => 21 [ProviderInternalName] => CNP_COAST [RateId] => 161459 [RegularMoveIn] => 16 [TDSPPassThrough] => 0.03791 [TOCUrl] => http://www.championenergyservices.com/register/termsandconditions.asp?rateid=161459 [YRACUrl] => http://www.championenergyservices.com/register/\affiliatefiles\YRAC.PDF [provider] => ces [ProductType] => Fixed [Rep] => Champion Energy Services [Zone] => 77479 ) ) Array 2 = pr($temp_val); Array ( [0] => Array ( [id] => 6 [PlanId] => 60 [PlanName] => Bounce 12 + A/C Protection [PlanDescription] => Bounce 12 + A/C Protection - CNP [PlanTerm] => 12 [PlanRate] => [RateId] => [PlanIssueDate] => [PlanMonthlyFee] => [EarlyTerminationFee] => 200.00000 [AveragePrice] => 12.00000 [HurricaneRecovery] => [PlanRenewablePercent] => [ProviderDisplayName] => [ProviderId] => 1 [provider] => bounce [ProductZoneId] => 353 [Zone] => 77479 [ProviderInternalName] => [RegularMoveIn] => [PriorityMoveIn] => [OffCycle] => [TDSPPassThrough] => [PUCAssessment] => [EFLUrl] => [EFLLinkUrl] => http://www.bounceenergy.com/efls/bounce12.pdf [TOCUrl] => [TOCLUrl] => http://www.bounceenergy.com/terms-of-service-fixed.pdf [YRACUrl] => [YRACLUrl] => http://www.bounceenergy.com/yraac.pdf [REP_Name] => [REP_PUCT] => [customer_service_email] => [toll_free_number] => [status] => active [created] => 2012-12-14 12:40:05 [modified] => 2012-12-14 ) [1] => Array ( [id] => 18 [PlanId] => 17 [PlanName] => Online Only - 12 [PlanDescription] => Online Only - 12 [PlanTerm] => 12 [PlanRate] => [RateId] => 386 [PlanIssueDate] => [PlanMonthlyFee] => 100.00000 [EarlyTerminationFee] => 175.00000 [AveragePrice] => 10.00000 [HurricaneRecovery] => [PlanRenewablePercent] => [ProviderDisplayName] => [ProviderId] => 2 [provider] => fulcrum [ProductZoneId] => [Zone] => 77479 [ProviderInternalName] => [RegularMoveIn] => [PriorityMoveIn] => [OffCycle] => [TDSPPassThrough] => [PUCAssessment] => [EFLUrl] => [EFLLinkUrl] => [TOCUrl] => [TOCLUrl] => [YRACUrl] => [YRACLUrl] => [REP_Name] => [REP_PUCT] => [customer_service_email] => [toll_free_number] => [status] => active [created] => 2012-12-14 12:40:15 [modified] => 2012-12-14 ) ) I want to compare this two array and if any key value is different i want to take it an different array.. $result_val= array_diff_assoc($plan_data, $temp_val); Please help me out !!

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  • PHP: Count values of array

    - by poru
    I know the function count() of php, but what's the function for counting how often a value appear in an array? Example: $array = array( [0] => 'Test', [1] => 'Tutorial', [2] => 'Video', [3] => 'Test', [4] => 'Test' ); Now I want to count how often "Test" appears.

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  • Sparse O(1) array with indices being consecutive products

    - by Kos
    Hello, I'd like to pre-calculate an array of values of some unary function f. I know that I'll only need the values for f(x) where x is of the form of a*b, where both a and b are integers in range 0..N. The obvious time-optimized choice is just to make an array of size N*N and just pre-calculate just the elements which I'm going to read later. For f(a*b), I'd just check and set tab[a*b]. This is the fastest method possible - however, this is going to take a lot of space as there are lots of indices in this array (starting with N+1) which will never by touched. Another solution is to make a simple tree map... but this slows down the lookup itself very heavily by introducing lots of branches. No. I wonder - is there any solution to make such an array less sparse and smaller, but still quick branchless O(1) in lookup?

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  • getjson jquery parsing an array

    - by Ozaki
    TLDR: Want to get each heading from an array and insert it into a div without knowing what is inside the div using Jquery - getJSON. I have JSON array lets say: jsonfeed({ "items": [ { "d":{"title":"034324324-22344231-10"} }, { "d"{"title":"23423404-3423422-10"} }, { "d"{"title":"0234234324-32432422-10"} }, { "d"{"title":"0234234324-223534534-10"} ] }) And I want to parse it as for each "title" to insert it into a div. Trying along the lines of $.getJSON(url, function(data){ $.each(data.items, function(i,item){ $('#testfield').html('<p>' + item.d.title + '</p>'); }); }); to no avail. I am using Getjson in other places but in cases where I know what request I am making. e.g: $('#livetime').html(data.Time); Which is all working perfectly fine but in this case I need to get the details out of the array without knowing what is inside the array I'm sure there is something simple that I'm missing here or doing wrong ^^.

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  • PHP Key name array

    - by Sean McRaghty
    I have an array $data fruit => apple, seat => sofa, etc. I want to loop through so that each key becomes type_key[0]['value'] so eg type_fruit[0]['value'] => apple, type_seat[0]['value'] => sofa, and what I thought would do this, namely foreach ($data as $key => $value) { # Create a new, renamed, key. $array[str_replace("/(.+)/", "type_$1[0]['value']", $key)] = $value; # Destroy the old key/value pair unset($array[$key]); } print_r($array); Doesn't work. How can I make it work? Also, I want everything to be in the keys (not the values) to be lowercase: is there an easy way of doing this too? Thanks.

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  • Pass array of data to jQuery function

    - by ILMV
    Here's the story... I have a jQuery function that does something, this function is referenced very regularly. One of the input parameters is an array, this array data is hard coded and thus I want to pass the data like this: (this is how I would do it using PHP) myFunction(Array("1"=>"a","2"=>"b","3"=>"c")); Instead of $arr=Array("1"=>"a","2"=>"b","3"=>"c"); myFunction($arr); So how do I achieve this with my jQuery function, I want this to be a one liner if possible.

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  • Place Query Results into Array then Implode?

    - by jason
    Basically I pull an Id from table1, use that id to find a site id in table2, then need to use the site ids in an array, implode, and query table3 for site names. I cannot implode the array correctly first I got an error, then used a while loop. With the while loop the output simply says: Array $mysqli = mysqli_connect("server", "login", "pass", "db"); $sql = "SELECT MarketID FROM marketdates WHERE Date = '2010-04-04 00:00:00' AND VenueID = '2'"; $result = mysqli_query($mysqli, $sql) or die(mysqli_error($mysqli)); $dates_id = mysqli_fetch_assoc ( $result ); $comma_separated = implode(",", $dates_id); echo $comma_separated; //This Returns 79, which is correct. $sql = "SELECT SIteID FROM bookings WHERE BSH_ID = '1' AND MarketID = '$comma_separated'"; $result = mysqli_query($mysqli, $sql) or die(mysqli_error($mysqli)); // This is where my problems start $SIteID = array(); while ($newArray = mysqli_fetch_array($result, MYSQLI_ASSOC)) { $SIteID[] = $newArray[SIteID]; } $locationList = implode(",",$SIteID); ?> Basically what I need to do is correctly move the query results to an array that I can implode and use in a 3rd query to pull names from table3.

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  • make username and userid into array php

    - by Bharanikumar
    i want to my array , somthing like this manner array("userid"=>"username","1"=>"ganeshfriends","2"=>"tester") mysq query somthing like this $query = select username, userid from tbluser $result = mysql_query($query); while($row = mysql_fetch_array($result)){ $items = array($row['userid']=>$row['username']); } print_r($items); Can you tell me how to make userid as key and username as val... Thanks

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  • Is there any legitimate use for bare strings in PHP?

    - by Robert
    This question got me thinking about bare strings. When PHP sees a string that's not enclosed in quotes, it first checks to see if it's a constant. If not, it just assumes it's a string and goes on anyway. So for example if I have echo $foo[bar]; If there's a constant called bar it uses that for the array key, but if not then it treats bar as a bare string, so it behaves just like echo $foo["bar"]; This can cause all kinds of problems if at some future date a constant is added with the same name. My question is, is there any situation in which it actually makes sense to use a bare string?

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