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• Mongo: Finding from multiple queries

  - by waxical

  New to Mongo here. I'm using the PHP lib and trying to work out how I can find in a collection from multiple queries. I could do this by repeating the query with a different query, but I wondered if it can be done in one. I.e. $idsToLookFor = array(2124,4241,5553); $query = $db->thisCollection->find(array('id' => $idsToLookFor)); That's what I'd like to do. However it doesn't work. What I'm trying to do is find a set of results for all the id's at one time. Possible or just do a findOne on each with a foreach/for?

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• Swap function for a char*

  - by Martin

  I have the simple function below which swap two characters of an array of characters (s). However, I am getting a "Unhandled exception at 0x01151cd7 in Bla.exe: 0xC0000005: Access violation writing location 0x011557a4." error. The two indexes (left and right) are within the limit of the array. What am I doing wrong? void swap(char* s, int left, int right) { char tmp = s[left]; s[left] = s[right]; s[right] = tmp; } swap("ABC", 0, 1); I am using VS2010 with unmanaged C/C++. Thanks!

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• Unable to return/process JSON in JQuery $.get()

  - by shyam

  I have a problem returning/processing JSON data while calling $.get() function. Here's the code: JQuery: $.get("script.php?", function(data) { if (data.status) { alert('ok'); } else { alert(data.error); } },'json'); PHP if ($r) { $ret = array("status"=>true); } else { $ret = array("status"=>false,"error"=>$error); } echo json_encode( $ret ); So this is the code. But the response is always taken as string in the jquery. data.status and data.error is undefined.

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• adding button to the navigation bar

  - by praseed

  hi friends, i have a problem while adding button to the navigation bar.. My application consist of two view controllers added to the viewControllers array of a tabBarController. Inturn this tabBarController is added to the viewControllers array of a navigationController. In one of the views i have a textfield for entering dates . On the tap of this textfield the datepicker will pop up. simultaneously i want to display a done button on the navigation bar. how can i do this... i tried using self.tabBarController.navigationController.navigationItem.rightBarButtonItem = self.doneButton; But this is not working... Pls help me out..

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• using jquery $.post() for returning multiple values

  - by Aninemity

  Hi all I am trying to use a $.post() in the following way: $.post("file.php", { file_id: $(this).val()}, function(data){...} The file.php then does a database query and returns an array with a title, description and image reference. What I want to do then is be able to update the .val() for form fields for each. I understand how to do this on a single variable, it would just be the following: $.post("file.php", { file_id: $(this).val()}, function(data){ $('#title').val(data); } But, how do I get the data returned to be recognizable in jquery as either separate variables or as an array? Thanks in advance

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• help with arrays

  - by user267237

  i need help starting this program or a link that will help me with arrays...........Write a program that finds and outputs the minimum element in an array int A[10]

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• How to Get id's of all inputs inside the form?

  - by Vipin

  How to get all id's of input elements inside a form in an array?

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• How to iterate a list inside a list in java?

  - by user2142786

  Hi i have two value object classes . package org.array; import java.util.List; public class Father { private String name; private int age ; private List<Children> Childrens; public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } public List<Children> getChildrens() { return Childrens; } public void setChildrens(List<Children> childrens) { Childrens = childrens; } } second is for children package org.array; public class Children { private String name; private int age ; public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } } and i want to print there value i nested a list inside a list here i am putting only a single value inside the objects while in real i have many values . so i am nesting list of children inside father list. how can i print or get the value of child and father both. here is my logic. package org.array; import java.util.ArrayList; import java.util.Iterator; import java.util.List; public class ArrayDemo { public static void main(String[] args) { List <Father> fatherList = new ArrayList<Father>(); Father father = new Father(); father.setName("john"); father.setAge(25); fatherList.add(father); List <Children> childrens = new ArrayList<Children>(); Children children = new Children(); children.setName("david"); children.setAge(2); childrens.add(children); father.setChildrens(childrens); fatherList.add(father); Iterator<Father> iterator = fatherList.iterator(); while (iterator.hasNext()) { System.out.println(iterator.toString()); } } }

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• Recursive MySQL function call eats up too much memory and dies.

  - by kylex

  I have the following recursive function which works... up until a point. Then the script asks for more memory once the queries exceed about 100, and when I add more memory, the script typically just dies (I end up with a white screen on my browser). public function returnPArray($parent=0,$depth=0,$orderBy = 'showOrder ASC'){ $query = mysql_query("SELECT *, UNIX_TIMESTAMP(lastDate) AS whenTime FROM these_pages WHERE parent = '".$parent."' AND deleted = 'N' ORDER BY ".$orderBy.""); $rows = mysql_num_rows($query); while($row = mysql_fetch_assoc($query)){ // This uses my class and places the content in an array. MyClass::$_navArray[] = array( 'id' => $row['id'], 'parent' => $row['parent'] ); MyClass::returnPArray($row['id'],($depth+1)); } $i++; } Can anyone help me make this query less resource intensive?

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• PHP Math issue with negatives [closed]

  - by user1269625

  Possible Duplicate: PHP negatives keep adding I have this code here.... $remaining = 0; foreach($array as $value=>$row){ $remaining = $remaining + $row['remainingbalance']; } What its doing is that it is going through all the remaining balances in the array which are -51.75 and -17.85 with the code above I get -69.60 which is correct. But I am wondering how when its two negatives if they could subtract? Is that possible? I tried this $remaining = 0; foreach($clientArrayInvoice as $value=>$row){ $remaining = $remaining + abs($row['remainingbalance']); } but it gives me 69.60 without the negative. Anyone got any ideas? my goal is to take -51.75 and -17.85 and come up with -33.90 only when its a negative to do subtract. otherwise add

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• How do I link to another action in Magento whilst passing a parameter to the controller?

  - by desbest

  I need to pass a parameter, because I would like to redirect back to the module and query string of the current page. So I can get from showdown/index?id=35 --click--- showdown/vote?id=1 showdown/vote?id=1 --redirect-- showdown/index?id=35 The vote action is not seen. (The redirect method doesn't work as it takes the index.php url only and no actions, and I cannot find a helper in Magento for creating hyperlinks.) Does Magneto have a link helper for this? Example of stuff I want: <a href="<?php echo Mage::Helper->Link->($url, $array); ?> then $array or whatever variables gets sent to the controller.

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• Serialize object from within

  - by Maximus

  I have the class testClass which has the method save. This method saves object to a database. But it needs to serialize object before saving. How can I serialize object from within the class to do that? class testClass { private $prop = 777; public function save() { $serializedObject = serialize(self); DB::insert('objects', array('id', 'object')) ->values(array(1, $serializedObject)) ->execute(); } } serialize(self) obviously doesn't work.

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• Hidden field value set with jQuery doesn't submit

  - by Will

  I'm completely perplexed. I set the value of a hidden field with jQuery and the submit the form. The hidden value is present when I dump the $_POST array via PHP unless I use Internet Explorer. Here's the test code: $('#hidden-field').val('I am a hidden value'); // To make sure it's setting properly ... // This shows its being set in FF, Chrome, **AND** IE alert($('#hidden-field').val()); Then on the PHP side: print_r($_POST); For submissions made with IE the result looks like this: Array ( [hidden-field] => ) Other browsers have the value. Help? Why doesn't the value submit and how can I make it?

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• How to assign variable dynamically to php list function

  - by ravisoni

  What I am doing that I want to generate a list based on how many items are in an array, so I have counted the items and loop over them, create a number based var and construct a string $var which contains $a1,$a2.... and assigns the $var to list list($var) and tried to access $a1 but it gives me the error "Undefined variable: a1" Is there any other way to do it? Here is my code: $arr = array('1','2','3'); $listsize = count($arr); $var=''; for($i=1;$i<=$listsize;$i++){ $var.='$a'.$i; if($i!=$listsize){ $var.=','; } } list($var) = $arr; echo $a1;

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• Get total marker count from Google API placesSearch

  - by okTalk

  In the example fiddle, how can I get the total number of markers displayed on the map? I'm pushing each of the markers into an array like this: markers.push(marker) And attempting to get the total number of markers like this: $('.marker-count span').html(markers.length); Unfortunately, "markers.length" is returning 0 when it should be returning at least 3. I have example code here: http://jsfiddle.net/287C7/ How can I display the total number of markers? Is it not possible to add each marker to my array? I need to know the amount of markers shown so that I can alert the user if there are none. Thanks,

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• Why is casting and comparing in PHP faster than is_*?

  - by tstenner

  While optimizing a function in PHP, I changed if(is_array($obj)) foreach($obj as $key=$value { [snip] } else if(is_object($obj)) foreach($obj as $key=$value { [snip] } to if($obj == (array) $obj) foreach($obj as $key=$value { [snip] } else if($obj == (obj) $obj) foreach($obj as $key=$value { [snip] } After learning about ===, I changed that to if($obj === (array) $obj) foreach($obj as $key=$value { [snip] } else if($obj === (obj) $obj) foreach($obj as $key=$value { [snip] } Changing each test from is_* to casting resulted in a major speedup (30%). I understand that === is faster than == as no coercion has to be done, but why is casting the variable so much faster than calling any of the is_*-functions?

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• adobe air stream end on line (EOF)

  - by goseta

  Hi to all, I need to read a file, which has an "n" number of lines, I need to know when reading the end of each line, so I can store the line in an array, ok so far I have while(stream.position < stream.bytesAvailable) { char = stream.readUTFBytes(1); if(char == "\n") { array.push(line); line = ""; } else { line += char; } } my question is, always the end of line will be "\n"?? how can I be sure if is not an other character like \r??, there is an other character for end of line??, thanks for any help!!!

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• How to get it working in O(n)?

  - by evermean

  I came across an interview task/question that really got me thinking ... so here it goes: You have an array A[N] of N numbers. You have to compose an array Output[N] such that Output[i] will be equal to multiplication of all the elements of A[N] except A[i]. For example Output[0] will be multiplication of A[1] to A[N-1] and Output[1] will be multiplication of A[0] and from A[2] to A[N-1]. Solve it without division operator and in O(n). I really tried to come up with a solution but I always end up with a complexity of O(n^2). Perhaps the is anyone smarter than me who can tell me an algorithm that works in O(n) or at least give me a hint...

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• Ruby - overriding/enabling multiple assignment (e.g. `a, b, c = d, e, f`)

  - by nicholaides

  In ruby, you can do this: d = [1, 2, 3] a, b, c = d a, b, and c, will receive the values 1, 2, and 3, respectively. d, in this case in an Array and ruby knows to assign it's contents to a, b, and c. But, if d were a Fixnum, for example, only a would be assigned to the value of d while b and c would be assigned nil. What properties of d allow it to be used for multiple assignment? In my exploring so far, I've only been able to make instances of subclasses of Array behave in this way.

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• Access property from include inside a class method in PHP

  - by Jojo

  How do you make a class property available to the other included file inside the same class' method? // file A.php class A { private $var = 1; public function go() { include('another.php'); } } in another file: // this is another.php file // how can I access class A->var? echo $var; // this can't be right Is this possible given the scope. If var is an array then we can use extract but if var is not, we can wrap it in an array. Is there a better way? Thanks!

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• Uploading image Into The $_FILES Without A Form

  - by user1799825

  How to upload image from another server into the array $ _FILES [] without form ‹input type="file" name="file" /› with the creation of a temporary file in / TMP. It is necessary to the script api.php: <? php function doPost ($ sMethod, $ aPost = array ()) { $ aPost ['method'] = $ sMethod; $ aPost ['token'] = APP_TOKEN; $ hCurl = curl_init (); curl_setopt ($ hCurl, CURLOPT_URL, APP_URL. 'api.php'); curl_setopt ($ hCurl, CURLOPT_HEADER, false); curl_setopt ($ hCurl, CURLOPT_RETURNTRANSFER, true); curl_setopt ($ hCurl, CURLOPT_SSL_VERIFYPEER, false); curl_setopt ($ hCurl, CURLOPT_POST, true); curl_setopt ($ hCurl, CURLOPT_POSTFIELDS, $ aPost); $ sData = curl_exec ($ hCurl); curl_close ($ hCurl); } ?>

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• StringArray and StringBuilder Class

  - by picnic4u

  can we append StringBuilder class Strings in String Array's string in asp.net?

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• Yii CGridView: how to add a static WHERE condtion?

  - by realtebo

  I've a standard Gii created admin view, which use a CGridView, and it's showing my user table data. the problem is that user with name 'root' must NOT BE VISIBLE. Is there a way to add a static where condition " ... and username !='root' " ? admin.php [view] 'columns'=>array( 'id', 'username', 'password', 'realname', 'email', ..... user.php [model] public function search() { // Warning: Please modify the following code to remove attributes that // should not be searched. $criteria=new CDbCriteria; $criteria->compare('id',$this->id); $criteria->compare('username',$this->username,true); $criteria->compare('password',$this->password,true); $criteria->compare('realname',$this->realname,true); $criteria->compare('email',$this->email,true); ...... return new CActiveDataProvider($this, array( 'criteria'=>$criteria, )); }

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• C#: reading in a text file more 'intelligently'

  - by DarthSheldon

  I have a text file which contains a list of alphabetically organized variables with their variable numbers next to them formatted something like follows: aabcdef 208 abcdefghijk 1191 bcdefga 7 cdefgab 12 defgab 100 efgabcd 999 fgabc 86 gabcdef 9 h 11 ijk 80 ... ... I would like to read each text as a string and keep it's designated id# something like read "aabcdef" and store it into an array at spot 208. The 2 issues I'm running into are: I've never read from file in C#, is there a way to read, say from start of line to whitespace as a string? and then the next string as an int until the end of line? given the nature and size of these files I do not know the highest ID value of each file (not all numbers are used so some files could house a number like 3000, but only actually list 200 variables) So how could I make a flexible way to store these variables when I don't know how big the array/list/stack/etc.. would need to be.

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• Programmatic gradient stops with Javascript

  - by TomcatExodus

  Working with Javascript (jQuery), given 2 color values (2033ff and 3300a0 for example) how can I determine certain gradient stops between them? Reason being is, I intend on using an array of color values: 0 => '000000' 8400 => 'f0ff00' 44000 => '2033ff' 68400 => '3300a0' There being 86400 seconds in a day, 12:00AM maps to 0, and 11:59PM maps to 86399. As time passes, the background color of a specified element changes to the appropriate color in gradient list via window.setInterval(function(e){ ... }, 1000). For example 2:32:11PM = 52331, which from the example would be somewhere between 2033ff and 3300a0. I don't need to populate the array with the values (unless that would be easier) but instead use the index and value as references.

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