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• PHP+MYSQL Server Config

  - by Matias

  Hi guys, I am parsing an XML file with PHP and inserting the rows in a MYSQL database. I am using PHP simplexml_load_files to load the XML and a foreach to loop through the array and insert the rows into my database. It works perfectly fine with small files i am testing, but it comes to reality I need to parse a large 500mb XML file and nothing happens. I was wondering what was the right Php.ini config for this case ? I have a VPS Linux Cent OS, with 256 mb of dedicated Memory and MYSQL 5.0.5. I have also set php memory_limit = 256M (maximum of my server) Any suggestions, similar experiences will be greatly appreciated Thanks

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• Filter condition not working properly on list (C#3.0)

  - by Newbie

  I have a datatable that has many NULL or " " strings. Next I am type casting the DataTable to a list . Now if I want to filter those conditions on this list and get the resultant value(without NULL or String.Empty or " " records) what should I do? My code DataTableExtensions.AsEnumerable(dt).ToList().ForEach(i => { if (i[0] != null) { if ((i[0].ToString() != string.Empty)|| (i[0].ToString() != " ")) { list = dt.AsEnumerable().ToList(); } } }); But I am getting all the records. It is not getting filtered. Using C#3.0 Please help Thanks

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• WebBrowser.Navigate overload doesn't add cookies

  - by kaharas

  Hi guys, I'm experimenting with C#, and right now I'm trying to get a web page that needs cookies. Since I had no success doing it, I wrote this little PHP script ( directly from php.net): <?php foreach (getallheaders() as $name => $value) { echo "$name: $value\n"; } ?> but, when i run: this.WBro.Navigate("http://localhost/cookie.php", null,null,"Cookie: foo=bar"); the foo cookie isn't there, and all I got is a page displaying the "usual" headers ( except the cookie one). Does somebody has any idea of why this happens? Thanks a lot!

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• Inheriting from List<T> in .NET (vb or C#)

  - by Tony

  I have been delved in C++ world for a while, but now I'm in .NET world again, VB and C# and I wondered if you have a class that represents a collection of something, and you want the ability to use this in a foreach loop, etc... is it better to implement IEnumerable and IEnumerator yourself or should you inherit from the List<T> where T is the object type in it's singular form? I know in C++ for example, inheriting from a container is considered a bad idea. But what about .NET.

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• Adding Values to a Byte Array

  - by rross

  I'm starting with the two values below: finalString = "38,05,e1,5f,aa,5f,aa,d0"; string[] holder = finalString.Split(','); I'm looping thru holder like so: foreach (string item in holder) { //concatenate 0x and add the value to a byte array } On each iteration I would like to concatenate a 0x to make it a hex value and add it to a byte array. This is what I want the byte array to be like when I finish the loop: byte[] c = new byte[]{0x38,0x05,0xe1,0x5f,0xaa,0x5f,0xaa,0xd0}; So far all my attempts have not been successful. Can someone point me in the right direction?

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• PHP reporting error. DB verify how to?

  - by iamfab

  Error reporting Notice: Undefined variable: random_chars in wamp\www\php_sandbox\idgen.php on line 21 Call Stack: # Time Memory Function Location 1 0.0045 678928 {main}( ) ..\idgen.php:0 GPB7446 How do I fix this error? Using this code like an automatic unique id generator. How do I connect to DB to verify code is truly unique before allowing it to be assigned to a user creating a new account? Thanks <?php $characters = array( "A","B","E","F","G","H","J","K","M","N","P","R","S","T","W","X","Y","Z"); $keys = array(); while(count($keys) < 3) { $x = mt_rand(0, count($characters)-1); if(!in_array($x, $keys)) { $keys[] = $x; } } foreach($keys as $key){ $random_chars .= $characters[$key];} $randNum = rand(2327,9987); $randLet = rand(2327,9987); echo $random_chars . $randNum; ?>

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• PHP: How do I access child properties from a method in a base object?

  - by Nick

  I'd like for all of my objects to be able to return a JSON string of themselves. So I created a base class for all of my objects to extend, with an AsJSON() method: class BaseObject { public function AsJSON() { $JSON=array(); foreach ($this as $key = $value) { if(is_null($value)) continue; $JSON[$key] = $value; } return json_encode($JSON); } } And then extend my child classes from that: class Package extends BaseObject { ... } So in my code, I expect to do this: $Box = new Package; $Box-SetID('123'); $Box-SetName('12x8x6'); $Box-SetBoxX('12'); $Box-SetBoxY('8'); $Box-SetBoxZ('6'); echo $Box-AsJSON(); But the JSON string it returns only contains the BaseClass's properties, not the child properties. How do I modify my AsJSON() function so that $this refers to the child's properties, not the parent's?

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• Is it possible to use template and value at the same time on data-bind?

  - by Anonymous

  I have two sections of code. Code #1: <select data-bind="options: operatingSystems, optionsText: function (item) { return item.Name }, value: selectedOperatingSystem"></select> Code #2: <script type="text/html" id="os-template-detail"> <option data-bind="text: Name" class="body-text"></option> </script> <select data-bind="value: selectedOperatingSystem, template: { name: 'os-template-detail', foreach: operatingSystems }"></select> Both shows data from json correctly. With code #1, it updates the value when I select an item on the list while code #2 does not update anything when I change the item. I am pretty new to Knockout.js and have no idea why Code #2 doesn't work. Is it the limitation of Knockout that preventing me from using template and value at the same time?

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• How to detect first or last element iterating over a container?

  - by Basilevs

  How to do the following in more stylish/short way? for(i=container.begin(); i!=container.end(); ++i) { if (i!=container.begin()) { cout << ", "; } cout << *i; if (i==container.end()) { cout << "!" << endl; } } Solutions like foreach are acceptable (actions on first and last elements need to be configurable, though).

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• C#: Storting Instance of Objects in (Hashtable)

  - by DaGambit

  Hi I tried filling a Hashtable in the following way: ResearchCourse resCourse= new ResearchCourse();//Class Instance resCourse.CID="RC1000"; resCourse.CName="Rocket Science"; TaughtCourse tauCourse= new TaughtCourse();//Class Instance tauCourse.CID="TC1000"; tauCourse.CName="Marketing"; Hashtable catalog = new Hashtable(); catalog.Add("1", "resCourse.CID"); catalog.Add("2", "tauCourse.CID"); foreach (DictionaryEntry de in catalog) { Console.WriteLine("{0}, {1}", de.Key, de.Value); } Output Result to Console was: 1, resCourse.CID 2, tauCourse.CID Expected Result to be: 1, RC1000 2, TC2000 What am I misunderstanding about Hashtables? What is an easy way for the Hashtable to store the class instance and its values?

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• Apply CSS class to invalid controls on web form

  - by user137639

  I need to apply a css class to invalid controls on a web form. I'd like to make it a resusable class. This is what I have so far: public class Validation { public static void ApplyInvalidClass(Page page, string className) { foreach (System.Web.UI.WebControls.BaseValidator bv in page.Validators) { if (!bv.IsValid) { Control ctrl = page.FindControl(bv.ControlToValidate); if (ctrl != null) { if (ctrl is TextBox) { TextBox txt = ctrl as TextBox; txt.CssClass = "invalid"; } if (ctrl is DropDownList) { DropDownList ddl = ctrl as DropDownList; ddl.CssClass = "invalid"; } if (ctrl is CheckBox) { CheckBox cb = ctrl as CheckBox; cb.CssClass = "invalid"; } if (ctrl is HtmlGenericControl) { HtmlGenericControl html = ctrl as HtmlGenericControl; html.Attributes.Add("class", className); } } } } } } The problem is what I call this on a .Net user control, I guess because I'm passing in Page, page.FindControl(bv.ControlToValidate) is always null. Is there a better way to do this?

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• Force memcached to write to all servers in pool

  - by Industrial

  Hi everyone, I have thought a bit on how to make sure that a particular key is distributed to ALL memcached servers in a pool. My current, untested solution is to make another instance of memcached, something like this: $cluster['local'] = array('host' => '192.168.1.1', 'port' => '11211', 'weight' => 50); foreach ($this->cluster() as $cluster) { @$this->tempMemcache = new Memcache; @$this->tempMemcache->connect($cluster['host'], $cluster['port']); @$this->tempMemcache->set($key, $value, $this->compress, $expireTime); @$this->tempMemcache->close(); } What is common sense to do in this case, when certain keys need to be stored on ALL servers for reliability?

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• Converting keys of an array/object-tree to lowercase

  - by tstenner

  Im currently optimizing a PHP application and found one function being called around 10-20k times, so I'd thought I'd start optimization there. function keysToLower($obj) { if(!is_object($obj) && !is_array($obj)) return $obj; foreach($obj as $key=>$element) { $element=keysToLower($element); if(is_object($obj)) { $obj->{strtolower($key)}=$element; if(!ctype_lower($key)) unset($obj->{$key}); } else if(is_array($obj) && ctype_upper($key)) { $obj[strtolower($key)]=$element; unset($obj[$key]); } } return $obj; } Most of the time is spent in recursive calls (which are quite slow in PHP), but I don't see any way to convert it to a loop. What would you do?

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• How to add data to sql but for one id and more than one data ?

  - by Phsika

  i have one id and more filepaths.forexample: StudyInstanceUid:123456 FilePath: C:/a.jpg C:/b.jpg C:/c.jpg C:/d.jpg C:/e.jpg Result added table: 123456|C:/a.jpg 123456|C:/b.jpg 123456|C:/c.jpg 123456|C:/d.jpg 123456|C:/e.jpg How can i add more than one path for one id public bool AddDCMPath2(string StudyInstanceUid, string[] FilePath) { SqlConnection con = new SqlConnection("Data Source=(localhost);Initial Catalog=ImageServer; User ID=sa; Password=GENOTIP;"); SqlCommand cmd = new SqlCommand("INSERT INTO StudyDCM (StudyInstanceUid,FilePath) VALUES (@StudyInstanceUid,@FilePath)", con); try { con.Open(); cmd.CommandType = CommandType.Text; foreach (string filepath in FilePath) { cmd.Parameters.AddWithValue("@StudyInstanceUid", StudyInstanceUid); cmd.Parameters.AddWithValue("@FilePath", filepath); cmd.ExecuteNonQuery(); } } finally { if((con!=null)) con.Dispose(); if((cmd!=null)) cmd.Dispose(); } return true; }

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• DateFormat on DisplayFor not working

  - by user335160

  I've set the Data Annotation for date, it works when I use the EditorFor but when I use the DisplayFor it is not working. The date is come from a collection of data. I get this format 8/13/2011 12:00:00 AM instead of 8/13/2011. What is wrong with the code. Data Annotation for Date [DisplayName("Date")] [DisplayFormat(ApplyFormatInEditMode = true, DataFormatString = "{0:MM/dd/yyyy}")] [Required(ErrorMessage = "Date required.")] public object EM_Date { get; set; } View Code @foreach (EventViewModel item in Model) { <tr> <td class="AdBoxBodyRow1" style="text-align: center"> @Html.DisplayFor(modelItem => item.EM_Date) </td> </tr> }

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• Count number of messages per user

  - by Pr0no

  Consider the following tables: users messages ----------------- ----------------------- user_id messages msg_id user_id content ----------------- ----------------------- 1 0 1 1 foo 2 0 2 1 bar 3 0 3 1 foobar 4 3 baz 5 3 bar I want to count the number of messages per user and insert the outcome into users.messages, like this: users ----------------- user_id messages ----------------- 1 3 2 0 3 2 I could use PHP to perform this operation, pseudo: foreach ($user_id in users) { $count = select count(msg_id) from messages where user_id = $user_id update users set messages = $count } But this is probably very inefficient as compared to one query executed in MySQL directly: UPDATE users SET messages = ( SELECT COUNT(msg_id) FROM messages ) But I'm sure this is not a proper query. Therefore, any help would be appreciated :-)

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• Getting certain array from a multidimensional array

  - by Leron

  I have multidimensional array which is a query returning the info from a table named 'users'. In another part of my code I need to get the records of only one certain user and I want to take it using the array I mentioned above. It's of type: array(24) { [0]=>array(9) { ["id"]=>string(1) "1" ... } [1]=>array(9) { ["id"]=>string(1) "2" ... } [2]=>array(9) { ["id"]=>string(1) "5" ...} I'll use foreach compairing by ["id"] to find the record I need, but when I get a match I'm not sure how to extract only this array from the parent one. Thanks Leron

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• help me with the following sql query

  - by rupeshmalviya

  could somebody correct my following query, i am novice to software development realm, i am to a string builder object in comma separated form to my query but it's not producing desired result qyery is as follows and string cmd = "SELECT * FROM [placed_student] WHERE passout_year=@passout AND company_id=@companyId AND course_id=@courseId AND branch_id IN('" + sb + "')"; StringBuilder sb = new StringBuilder(); foreach (ListItem li in branch.Items) { if (li.Selected == true) { sb.Append(Convert.ToInt32(li.Value) +", "); } } li is integer value of my check box list which are getting generated may be differne at different time ...please also suggest me some good source to learn sql..

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• Strings, regexp and files

  - by A Moose

  <?php $iprange = array( "^12\.34\.", "^12\.35\.", ); foreach($iprange as $var) { if (preg_match($var, $_SERVER['REMOTE_ADDR'])) { I'm looking to have a list that will constitute each of the values inside the array. Let's call it iprange.txt, from which I would extract the variable $iprange. I would also be updating the file with new ranges, but I also want to convert those strings to regexp if that's something that's needed in php, as it is in the above example. If you could help me with the two following issues: I understand that somehow I would be using an array include, but I'm not sure how to implement it. I would like to run a cron that would update the text file and turn it into a regexp acceptable for use in the above example, if you think regexp is a good idea and there isn't another option. I know how to apply a cron in a directadmin gui, but I don't know what the cronned file would look like.

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• how to dissect string values

  - by nhoyti

  how can i dissect or retrieve string values Here's the sample code that im working on now private void SplitStrings() { List<string> listvalues = new List<string>(); listvalues = (List<string>)Session["mylist"]; string[] strvalues = listvalues.ToArray(); for (int x = 0; x < strvalues.Length; x++) { } } now that i'am able to retrieve List values in my session, how can i separately get the values of each list using foreach or for statement?

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• Scraping non-absolute URL

  - by cooldude

  I am trying to scrape www.weather.bm. I want all 10 radar images, but I can only get one (the image updates regularly) and it's not a absolute image url. I was hoping I could use the image as a image slideshow like the link but dont know how. Also, how can I remove images/Radarlegend.png? I just need the radar images. Here is my code: include('simple_html_dom.php'); $html = file_get_html('http://www.weather.bm/radarMobile.asp'); foreach($html->find('img') as $element) echo $element->src . '<br>' My output is: <div id="main"> images/Radar/CurrentRadarAnimation_100km_sri/100km_sri-radar-2011-01-04-1556.jpg<br>images/Radarlegend.png<br></div> </div>

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• WCF methods sharing a dictionary

  - by YeomansLeo

  I'm creating a WCF Service Library and I have a question regarding thread-safety consuming a method inside this library, here is the full implementation that I have until now. namespace WCFConfiguration { [ServiceBehavior(InstanceContextMode = InstanceContextMode.PerCall, ConcurrencyMode = ConcurrencyMode.Single)] public class ConfigurationService : IConfigurationService { ConcurrentDictionary<Tuple<string,string>, string> configurationDictionary = new ConcurrentDictionary<Tuple<string,string>, string>(); public void Configuration(IEnumerable<Configuration> configurationSet) { Tuple<string, string> lookupStrings; foreach (var config in configurationSet) { lookupStrings = new Tuple<string, string>(config.BoxType, config.Size); configurationDictionary.TryAdd(lookupStrings, config.RowNumber); } } public void ScanReceived(string boxType, string size, string packerId = null) { } } } Imagine that I have a 10 values in my configurationDictionary and many people want to query this dictionary consuming ScanReceived method, are those 10 values be shared for each of the clients that request ScanReceived? Do I need to change my ServiceBehavior? The Configuration method is only consumed by one person by the way.

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• Strip H1 tag and its contents

  - by Andy

  How can i remove <h1>and its contents</h1> from the following line strip_tags(substr($article->content(),0,255) from this complete code <?php $last_articles = $this->children(array('limit'=>5, 'order'=>'page.created_on DESC')); ?> <?php foreach ($last_articles as $article): ?> <div class="entry"> <h3><?php echo $article->link($article->title); ?></h3> <?php echo strip_tags(substr($article->content(),0,255).'...', '<p><a>'); ?> </div> <?php endforeach; ?> Any help would be appreciated.

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• C#, get all collection properties from an object

  - by Eatdoku

  Hi, I have a class with 3 List collections like the following. I am trying to have a logic which will iterate through the object's "collection" properties and do some operation using the data stored in those collections. I am just wondering if there is an easy way of doing it using foreach. thanks public class SampleChartData { public List<Point> Series1 { get; set; } public List<Point> Series2 { get; set; } public List<Point> Series3 { get; set; } public SampleChartData() { Series1 = new List<Point>(); Series2 = new List<Point>(); Series3 = new List<Point>(); } }

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• C++ virtual + protected?

  - by user346113

  Hi, In C++, I have a base class A, a sub class B. Both have the virtual method Visit. I would like to redefine 'Visit' in B, but B need to access the 'Visit' function of each A (and all subclass to). I have something like that, but it tell me that B cannot access the protected member of A! But B is a A too :-P So, what can I do? class A { protected: virtual Visit(...); } class B : public class A { protected: vector<A*> childs; Visit(...); } B::Visit(...) { foreach(A* a in childs) { a->Visit(...); } } Thx

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