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  • PHP find if file data is an image

    - by Christian Sciberras
    Imagine I have some file data in a variable $data. I need to determine whether it is an image or not. No need for details such as corrupt images etc. Firs thought would be getting the file mime type by looking at the magic number and then see whether "image" is in the mime type. No such luck, even if I have a "file extension to mime type" script, I don't have a reliable way to get mime from magic number. My next option was to have a reasonable list of image file magic numbers and consult them. However, it relatively difficult to find such magic numbers (gif for instance has different magic numbers, some of which could pretty rare - if memory serves me right). A better idea would be some linux program which can do this kind of thing. Any ideas? I'm running RHEL and PHP 5.3. I've got root access - ie able to install stuff if needed. - Chris.

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  • Get a control's value that is in usercontrol using javascript

    - by flopdix
    I have a user control that i have registered to an aspx page. Now from the aspx page, i am trying to access one of the registered usercontrol's hiddenfield value in my aspx page using javacript using the below code: tst = document.getElementById('control1$hdnField').value; I looked into the page's trace, and i could see 'control1$hdnField'. Then why i am not getting its value in my aspx page. I have also ensured that the hidden field exits on the user control and has a default value set. Please help.

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  • Get params value from component Joomla 3.0

    - by yogeshK
    I have saved value like this in my component table fields params. unique=1 default_value=Default validate=Validate validate_error_msg=Validate error messag searchable=1 Now i want to get value in my component.So I am passing values in my component's view.html.php in this way $params = new JForm($row->params); but its not working. Now I want to get value so I am taking like this $this->params->getValue('default_value'); But its not work where as in Joomla 2.5 ,we can get value like this $this->params->get('default_value');

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  • Symfony 1.4 Form Value change after getValues()

    - by bertzzie
    Hi, I've got some problem with symfony form value (i guess it's the clean value, but not so clear yet). Here's the problem : I got a sfFormDateJQueryUI widget setup like this in my form : $this->setWidgets(array( 'needDate' => new sfWidgetFormDateJQueryUI(), )); $this->setValidators(array( 'needDate' => new sfValidatorDate(array( 'required' => true, 'date_format' => '/^[0-9]{2}\/[0-9]{2}\/[0-9]{4}$/', 'date_output' => 'd/m/Y' )), )); Then when i submit, say 26/06/2010, it turns out right in the HTTP Header (viewed via Firebug) and $request (i just print it). But after i get the value via $formVal = $form->getValues(); the date value in $formVal["needDate"] become today's date (03/06/2010). I really don't understand, and after checking in the API documentation it says that the getValues will return the 'cleaned' value. Is that because of it ? I don't understand what's 'clean'. Thanks before..

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  • Xml schema, how to make sure one element exists with a specific attribute value

    - by pexxxy
    How do I enforce the existing of an element with a specific attribute value in the XML? For example: <events> <event type="system" desc="this is a system event"/> <event type="bla1" desc="this is bla1 event"/> <event type="bla2" desc="this is bla2 event"/> </events> I need a rule to make sure the event element with type attribute = 'system' exists (once). All other event elements are optional;

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  • How to find input element id by value?

    - by Abs
    Hello all, How do I get the id of an input element based on its value? The values will always be unique and there are only 7 of them. I have tried this: $('#wrapper').find("input[value='"+value+"']").each(function(){ return this.id; }); But nothing is returned! Thanks all for any help

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  • How to change h:outputText value by JavaScript?

    - by Peter
    I already tested with 2 inputText, It runs well for example var tdate = document.getElementById('txtDate'); //h:inputText var tdt = document.getElementById('txtDateTime'); //h:inputText tdate.onchange = function(){ tdt.value = tdate.value; }; How can I change the value of " tdt " - h:outputText? var tdate = document.getElementById('txtDate'); //h:inputText var tdt = document.getElementById('txtDateTime'); //h:outputText

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  • Accessing char* after assigning its value C

    - by iSight
    Hi, I have assign the value of a member variable as under: myValue = (char*)malloc(strlen(inValue) * sizeof(char)); strcpy(mValue, inValue); while assigning it the value was proper as(taking printf output): http://www.w3.org/2001/XMLSchema But, when i get its value after wards i get it as: http://www.w3.org/2001/XMLSchema(! What could be the problem for this issue

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  • How to specify comma , space unicode value in app.config(C#3.0)

    - by Newbie
    In the app.config file if I use <add key = "FileDelimeter" value ="&#2c;"/> as unicode for COMMA, it is throwing error Invalid character in a decimal number 'c' For SPACE, <add key = "FileDelimeter" value ="&#20;"/> the error is Character'', hex value 0*14 is illegal in xml while <add key = "FileDelimeter" value ="&#09;"/> for "\t" worked. Where is the mistake? Kindly give a generic solution. Thanks

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  • How to select ComboBox value after Data filled from DataSource

    - by Amadeus45
    Hi, I would like to set the selected value to a known value. However, after InititializeComponent() has been called, the data is not yet filled in a databound Combobox so I can't set my selected value there. Which event is triggered when the data has finished to be added in the combobox from the databound object ? Is there any other way you would suggest handling this ? Many thanks

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  • how can i read the integer value from xml document in objective-c

    - by uttam
    this is my xml document, i want to use the value of id and mlsid in in my viewcontroller. how can i read it. <Table> <ID>1</ID> <MLSID>70980420</MLSID> <STREET_NO>776</STREET_NO> <STREET_NAME>Boylston</STREET_NAME> <AreaName>Back Bay</AreaName <Table> i have created one object file book which store the all value of xml data and then i put that objects in the array . now i am able to retrive the string value but not getting the integer value. this is my object class. @interface Book : NSObject { NSInteger ID; NSInteger MLSID //Same name as the Entity Name. } how to trieve the value of MLSID in the viewcontroller. or how to print it.

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  • Core Data: Detecting the type and casting it

    - by Tim Sullivan
    I have set up a Core Data model that includes an entity, Item with a 1-M relationship with the abstract entity Place, so that an item has many places. There are several entities with the parent set to Place. I want to set up several UI elements depending on the descendent place types. I have a loop that looks something like this: for (Place *place in item.places) { } ... but I'm not sure how to detect what type the place is, and how to cast it to the proper type so that I can access its properties. Thanks for any help!

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  • anonymous type and multiple properties

    - by ognjenb
    I have this error: An anonymous type cannot have multiple properties with the same name. Whether this can be resolved with alias ie, whether an alias exists in LINQ var device_query = from d in DevicesEntities.device join dt in DevicesEntities.devicetype on d.DeviceTypeId equals dt.Id join l in DevicesEntities.location on d.Id equals l.DeviceId join loc in DevicesEntities.locationname on l.LocationNameId equals loc.Id where l.DeviceId == d.Id select new { d.Id, d.DeviceTypeId, d.SerialNumber, d.FirmwareRev, d.ProductionDate, d.ReparationDate, d.DateOfLastCalibration, d.DateOfLastCalibrationCheck, d.CalCertificateFile, d.Notes, d.TestReportFile, d.WarrantyFile, d.CertificateOfOriginFile, d.QCPermissionFile, d.Reserved, d.ReservedFor, d.Weight, d.Price, d.SoftwareVersion, dt.Name, dt.ArticleNumber, dt.Type, l.StartDate, //AS LastStartDate, l.LocationNameId, loc.Name //in this line I have problem };

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  • How to set the option value through model

    - by user281180
    I need to have the value for the option in the following: I have created my select as follows: <select id="fromSelectBox" multiple="multiple" > <% foreach (var item in Model.Projects) { %> <option><%=Html.Encode(item.Text)%></option> <%} %> </select> How do I set the value of the option using the value in the model which s item.ID?

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  • Write a tree class in Java where each level has a unique object type

    - by user479576
    I need to write a tree class in Java where each level has a unique object type. The way it is written below does not take advantage of generics and causes alot of duplicate code. Is there a way to write this with Generics ? public class NodeB { private String nodeValue; //private List<NodeB> childNodes; // constructors // getters/setters } public class NodeA { private String value; private List<NodeB> childNodes; // constructors // getters/setters } public class Tree { private String value; private List<NodeA> childNodes; // constructors // tree methods }

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  • How can I find the value of a blury image Matlab question

    - by user332447
    Is there a method to detect the value of a image rgb that is blury? I simply want to store the blury value of my image in a variable called blury value? Is there a dedicated function? %image1 which is rgb is stored in variable img1 img1 = imread('102.jpg'); % conversion to grayscale stored in img1_grey variable img1_grey = rgb2gray(img1); blury_value = function_matlab(img1)

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