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• Why does PHP 5.2 disallow abstract static class methods?

  - by Artem Russakovskii

  After enabling strict warnings in PHP 5.2, I saw a load of strict standards warnings from a project that was originally written without strict warnings: Strict Standards: Static function Program::getSelectSQL() should not be abstract in Program.class.inc The function in question belongs to an abstract parent class Program and is declared abstract static because it should be implemented in its child classes, such as TVProgram. I did find references to this change here: Dropped abstract static class functions. Due to an oversight, PHP 5.0.x and 5.1.x allowed abstract static functions in classes. As of PHP 5.2.x, only interfaces can have them. My question is: can someone explain in a clear way why there shouldn't be an abstract static function in PHP?

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• Vb.Net action delegate problem?

  - by Ramesh Vel

  Hi, Am vb.net newbie. This question might be very novice and answered before, but i couldn't find. I was trying the lambda features and got struck here. Private Function HigerOrderTest(highFunction as Func(Of Int16,Int16)) As Action(of String) Dim sam = highFunction(3) Dim DoIt as Action(of String) DoIt = sub(s) console.WriteLine(s) return DoIt End Function I got "Expression expected." at line DoIt = sub(s) console.WriteLine(s). And when i changed this to DoIt = function(s) console.WriteLine(s) i got Expression does not produce a value. error. Whats the problem? Cheers

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• Scala :: operator, how it works?

  - by Felix

  Hello Guys, in Scala, I can make a caseclass case class Foo(x:Int) and then put it in a list like so: List(Foo(42)) Now, nothing strange here. The following is strange to me. The operator :: is a function on a list, right? With any function with 1 argument in Scala, I can call it with infix notation. An example is 1 + 2 is a function (+) on the object Int. The class Foo I just defined does not have the :: operator, so how is the following possible: Foo(40) :: List(Foo(2)) ? In scala 2.8 rc1, I get the following output from the interactive prompt: scala> case class Foo(x:Int) defined class Foo scala> Foo(40) :: List(Foo(2)) res2: List[Foo] = List(Foo(40), Foo(2)) scala> I can go on and use it, but if someone can explain it I will be glad :)

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• Select next element in the page source using jQuery

  - by Travis

  I have an arbitrarily deep list of the form: <ul> <li></li> <li> <ul> <li></li> </ul> </li> </ul> I am trying to build a function "nextElement" that returns a jQuery selector. The first time the function is called, it returns the first li in the list. The second time it is called, it returns the next li in the page. Etc. I'd like this function to pay no attention to siblings, parents, children, etc. All I care about is that everytime it is called, the next li in the source gets chosen. Any suggestions on how to go about approaching this? Thanks

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• better for-loop syntax for detecting empty sequences?

  - by Dmitry Beransky

  Hi, Is there a better way to write the following: row_counter = 0 for item in iterable_sequence: # do stuff with the item counter += 1 if not row_counter: # handle the empty-sequence-case Please keep in mind that I can't use len(iterable_sequence) because 1) not all sequences have known lengths; 2) in some cases calling len() may trigger loading of the sequence's items into memory (as the case would be with sql query results). The reason I ask is that I'm simply curious if there is a way to make above more concise and idiomatic. What I'm looking for is along the lines of: for item in sequence: #process item *else*: #handle the empty sequence case (assuming "else" here worked only on empty sequences, which I know it doesn't)

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• Global list in C/gtk+

  - by sterh

  Hello, I need in global list in my gtk+ application, i use for it GList: For example: I have structure: typedef struct _data { Glist list; }Data; I want to use one copy of the list in the whole program: I have a function bulid my list: gboolean build_list() { Data->list = g_list_append(mw->a, "First "); Data->list = g_list_append(mw->a, "Second "); Data->list = g_list_append(mw->a, "Third "); g_list_foreach(Data->list, (GFunc)printf, NULL); } After calling this function to display all items in the list. zbut when i try to make it in another function - for example: void foreach() { g_list_foreach(Data->list, (GFunc)printf, NULL); } I see error in gdb: *Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0xb7335700 (LWP 5364)] 0xb765a7d7 in strchrnul () from /lib/i686/cmov/libc.so.6 * How can i create global list in my application? Thank you.

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• Simple graphics API with transparency, polygons, reading image pixels?

  - by M. Elkstein

  I need a simple graphics library that supports the following functionality: Ability to draw polygons (not just rectangles!) with RGBA colors (i.e., partially transparent), Ability to load bitmap images, Ability to read current color of pixel in a given coordinate. Ideally using JavaScript or Python. Seems like HTML 5 Canvas can handle #2 and #3 but not #1, whereas SVG can handle #1 and #2 but not #3. Am I missing something (about either of these two)? Or are there other alternatives?

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• JQuery SimpleModal

  - by Matt

  I've got a submit button inside my modal, and when it's pressed nothing happens! How do I make my form submit when the push my submit button? I don't want to use $('form').submit(); because then php doesn't detect that my button was clicked. <script type="text/javascript" language="javascript"> $(document).ready(function () { $('#btnAdd').click(function (e) { //clicking the button shows the modal popup up e.preventDefault(); $('#AddCareerItem').modal(); }); $('#btnCancelCareerContent').click(function (e) { //close the modal with the cancel button $.modal.close(); }); }); </script>

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• Jquery .$.ajax is not working

  - by Saravanan I M

  I am using $.ajax for facebook invite and calling the url (Yii framework controller). The below code is not working. $.ajax is not working. function FacebookInviteFriends() { FB.ui ( { method : 'apprequests', data: '', display: 'dialog', title : 'Invite a Friend', message: 'I just sent you an invitation to play My Game.', filters: ['app_non_users'] }, function(response) { alert("start"); if (response && response.to) { alert("inside if"); $.ajax({ url: 'http://localhost:83/invitechips/createRecord', type: 'POST', data: {id : response.to} }).done(function() { alert( "Data Saved: "); }); } else { alert("inside else"); } } ); }

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• empty() returning TRUE on object's non-empty property

  - by Michal M

  I've got a very weird and unexpected problem. empty() is returning TRUE on a non-empty property for a reason unknown to me. class MyObject { private $_property; public function __construct($property) { $this->_property = $property; } public function __get($name) { $priv_name = "_{$name}"; if (isset($this->$priv_name)) { return $this->$priv_name; } else { return NULL; } } } $obj = new MyObject('string value'); echo $obj->property; // Output 'string value' echo empty($obj->property); // Output 1 (means, that property is empty) Would this mean, that the __get() magic function is not called when using empty()? btw. I'm running PHP version 5.0.4

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• how to use NtCreateMutant(Zw) to create a mutex in C++

  - by Simon

  Hey i want to create a mutex with the kernel function NtCreateMutant. I did it like this: Handle hMutex; NTSTATUS ntMutex = NtOpenMutant(&hMutex,MUTEX_ALL_ACCESS,false); the NTSTATUS value that is returned: C0000024 STATUS_OBJECT_TYPE_MISMATCH hope someone can help me with calling NtOpenMutant the right way. With the windows API OpenMutex(..) its working just fine.. HANDLE hMutex; hMutex = OpenMutex(MUTEX_ALL_ACCESS, FALSE, "Name"); Hope someone can explain me how to use the nativ function :)

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• how to display a array value in view page

  - by udaya

  Hai I am using codeigniter...I my function phpcalview()... This is my function function phpcalview() { $year = $this->input->post('yearvv'); $data['year'] = $this->adminmodel->selectyear(); $data['date'] = $this->adminmodel->selectmonth(); print_r($data['date'] ); $this->load->view('phpcal',$data); } I am printing the values with print_r($data['date'] ); I get values like Array ( [0] => Array ( [dbdatenum] => 1 ) [1] => Array ( [dbdatenum] => 2 ) [2] => Array ( [dbdatenum] => 3 ) [3] => Array ( [dbdatenum] => 4 )) I want to display the array seperately as array[0],array[1] in my view page how can i do that

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• Problem with accessing in DOM with jQuery

  - by Tristan

  Hello, I changed the tree of my JSON-P output, and i cannot access to my object DOM anymore : Here's my output : jsonp1271634374310( {"Inter-Medias": {"name":"Inter-Medias","idGSP":"14","average":"80","services":"8.86"} }); And here's my jQuery script : success: function(data, textStatus, XMLHttpRequest){ widget = data.name; widget += data.average ; .... I know one level is missing, but if I try to do : data.Inter-Medias.name or data.name.name it's still not working. Any idea please ? I will have case where i'll have multiple Ojbect, so i want to display all of them, how to do that ? for (i=0;i < data.length;i++) Does it look right ? Bonus question : i understand function(data, textStatus, XMLHttpRequest) that in case of success this function is triggered, the data is what the script recieved from his request, but i have no idea what textStatus or XMLHttpRequest are here too and why ?! Thank you.

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• Multiple things at once (Threads?)

  - by Jonathan

  All, What is a really simple way of having a program do more than one thing at once, even if the computer does not necessarily have multiple 'cores'. Can I do this by creating more than one Thread? My goal is to be able to have two computers networked (through Sockets) to respond to each-other's requests, while my program will at the same time be able to be managing a UI. I want the server to potentially handle more than one client at the same time as well. My understanding is that the communication is done with BufferedReader.readLine() and PrintWriter.println(). My problem is that I want the server to be waiting on multiple readLine() requests, and also be doing other things. How do I handle this? Many thanks, Jonathan

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• problem in showing utf8 letters in jquery

  - by Mac Taylor

  hey guys i made a jquery script similar to wordpress that can show slugged title from an input box while user is typing $(function() { $(".word").keyup(function() { var word= $(this).val(); var inputmirror = $('#plink'); inputmirror.val(word); $.post("slug.php"+"&title="+word, function(data){ $('#preshow').html(data).fadeIn("slow"); }); return false; }); }); and php file : $title = $_GET['title']; if (!empty($title)) { echo Slugit($title); } everything works fine unless when i enter arabic letters in input box it shows coded characters like this : http://mysite.info/this-is-arabic-%d8%a7%d9%84%d9%84%d9%87

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• Jquery toggle with two elements

  - by Jesse

  I am using a toggle on a graphic to slide out a contact form. The problem is, the contact form can cover up the graphic element on low resolutions. I thought a solution would be to include a "close this" inside the form, that would use the same toggle effect. When I add the close this element to the code, instead of working in tandem with the original graphic element, it starts the chain back over, and slides the contact form even further out. Site is here: http://www.tritonloyaltysupport.com/status Code for toggle here: $(this).html(div_form); //show / hide function $('div.contactable').toggle( function() { $('#overlay').css({display: 'block'}); $('#contactForm').animate({"marginRight": "-=0px"}, "fast"); $('#contactForm').animate({"marginRight": "+=390px"}, "slow"); }, function() { $('#contactForm').animate({"marginRight": "-=390px"}, "slow"); $('#overlay').css({display: 'none'}); } );

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• jQuery code works in Firebug, but not on its own

  - by Ben

  I'm having quite the brainbuster of an issue right now. I am trying to change a link's hash tag at the end from "respond" to "comments" with jQuery. I have a simple script that should do this, however it does not work. The link does not change. However, Firebug shows no errors and when I run the code in Firebug's console, it works just as I intend. Why doesn't this work on its own? Does anybody have a solution, I'm at my wits edge with this one. (function ($) { $(document).ready(function() { $("a[href$='respond']").each(function() { $(this).attr("href", $(this).attr('href').replace("respond", "comments")); }); }); })(jQuery.noConflict()); Thanks so much, I know this might be a pain to test but I'm really thankful.

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• show current clicked div hide previous clicked div

  - by user295927

  Hi All, The code below is working, but with a problem I do not understand. When I click on first navigation link it is showing the div, this is what I want, but when I click on another nav link it does show the next div as expected but I need for the previous div(s) to hide. any help is appreciated. something like: if this is not the nav link that was clicked hide. I would think. $(document).ready(function(){ $('#navigation a').click(function (selected) { var getName = $(this).attr("id"); var projectImages = $(this).attr("name"); //console.log(getName); //console.log(projectImages); $(function() { $("#" + projectImages ).show("normal"); }); }); });

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• jquery image swap works in one html file but not another

  - by Jon

  I have two header templates for my site. One for the blog section and one for everything else. The below code swaps an image in my nav menu, on hover. It works for one template but not the other. The html code is pretty much identical in both header templates. Please help me!! $(document).ready(function(){ $('.nav-home, .nav-port, .nav-exp, .nav-cont, .nav-blog').hover(function(){ $(this).attr('src','/images/' + $(this).attr('class') + '-hover.gif'); }, function(){ $(this).attr('src','/images/' + $(this).attr('class') + '.gif'); }); });

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• natural sort of text and numbers, JavaScript

  - by ptrn

  I'm looking for the easiest way to sort an array that consists of numbers and text, and a combination of these. E.g. '123asd' '19asd' '12345asd' 'asd123' 'asd12' turns into '19asd' '123asd' '12345asd' 'asd12' 'asd123' This is going to be used in combination with the solution to another question I've asked here. The sorting function in itself works, what I need is a function that can say that that '19asd' is smaller than '123asd'. I'm writing this in JavaScript. Edit: as adormitu pointed out, what I'm looking for is a function for natural sorting

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• how to manipulate Json response like an object?

  - by loviji

  Hello, my jQuery.ajax return JSon object. I firstly read other articles. but their response text not likes mine. My Response content: from firebug response {"item":"[{\"country\":\"USA\",\"lan\":\"EN\"},{\"country\":\"Turkiye\",\"lan\":\"TR\"}]"} Now i trying to alert countryName: $('#loadData').click(function() { $.ajax({ type: "POST", url: "WS/myWS.asmx/getDaa", data: "{}", contentType: "application/json; charset=utf-8", dataType: "json", success: function(msg) { $("#jsonResponse").html(msg); $.each(msg.item, function(i, d) { alert(this.country); debugger; }); }, }); }); but it is alerting "undefined"

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• using javascript with help of jquery

  - by tazim

  Code written by me based on previous suggestions as follows . Any help to efficinetly use jquery in order to make this code work . Thanks in advance $(document).ready(function() { self.setInterval("clock()",1000); $("button").click(function() { clock; }); function clock() { clock(); time=new Date(); var s = "<p>" + time + "</p>"; $(s).appendTo("div"); } }); <button > Click Me button </div> <div id="someid"></div>

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• How to trigger an event in input text after I stop typing/writting?

  - by user1386320

  I want to trigger event just right after I stop typing (not while typing) characters in my input textbox. I've tried with: $('input#username').keypress(function() { var _this = $(this); // copy of this object for further usage setTimeout(function() { $.post('/ajax/fetch', { type: 'username', value: _this.val() }, function(data) { if(!data.success) { // continue working } else { // throw an error } }, 'json'); }, 3000); }); But this example produces a timeout for every typed character and I get about 20 AJAX requests if I type-in 20 characters. On this fiddle I demonstrate the same problem with a simple alert instead of an AJAX. Is there a solution for this or I'm just using a bad approach for this?

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• jQuery live, change in not working in IE6, IE7

  - by fabian

  The code below works as expected in FF but not in IEs... $(document).ready(function() { $('div.facet_dropdown select').live('change', function() { var changed_facet = $(this).attr('id'); var facets = $('select', $(this).closest('form')); var args = window.location.href.split('?')[0] + '?ajax=1'; var clear = false; for(var i = 0; i < facets.length; i++) { var ob = $(facets[i]); var val = ob.val(); if(clear) { val = ''; } args += '&' + ob.attr('id') + '=' + val; if(ob.attr('id') == changed_facet) { clear = true; } } $.getJSON(args, function(json) { for(widget_id in json) { var sel = '#field-' + widget_id + ' div.widget'; $(sel).html(json[widget_id]); } }); }); });

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• jquery draggable accept: classpath

  - by heldopslippers

  Hi guys.. I have problems with the following bit of javascript/jquery code: this.droppable = function(){ $('.imageWindow .body .item').draggable(); $('.groupWindow .body .item').droppable({ accept: $(".imageWindow .body .item"), over: function(event, ui) { alert("this is valid!"); }, drop: function(){ alert('dropped'); } }); } As you maybe know it is not possible to pass the following in the accept option: $(".imageWindow .body .item") But what is possible ? I want to pass a "class path" as an accept option ! It is probably a simple answer but i can't figure it out. Of course i could do: accept: ".item" But because "groupWindow .body .item" is a sortable it would also accept himself! Thanxs if you can help me!

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