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  • php variable persistance

    - by Illes Peter
    I have two files: index.php /lib/user.php Index contains the form: <div class="<? echo $msgclass; ?>"> <? echo $msg; ?> </div> <form id="signin" action="/lib/user.php" method="post"> ... </form> User.php makes all the processing. It sets $msg to 'some error message' and $msgalert to 'error' in case of any error. At the end of processing it uses header() to redirect to index.php But after redirection $msg and $msgalert no longer persist and index only gets empty vars. How can i fix this?

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  • C++ header files and variable scope

    - by MrDatabase
    I want to organize my c++ variables and functions in the following way: function prototypes in a header file "stuff.h", function implementation in "stuff.cpp", then say #include "stuff.h" in main.cpp (so I can call functions implemented in stuff.cpp). So far so good. Now I want to declare some variables in stuff.cpp that have global scope (so I can modify the variables in functions implemented in stuff.cpp and main.cpp). This doesn't seem to work. How can I do this?

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  • Form variable does not refresh with ajax call

    - by ChrisOPeterson
    I'm building a simple email sending form and wanted to make it with ajax. The form submits correctly the first time but if you make any subsequent changes to the text in the form and then submit again then jquery does not pick up on the changes and posts the old data. Whats going on? <script type="text/javascript"> var $j = jQuery.noConflict(); $j(document).ready(function() { var submit_url = "mail_submit.php"; var send_email = $j("#sendemail"); send_email.click(function() { var form = $j("#post"); $j.post(submit_url, form.serialize(), function(data) { alert(data); }); }); });

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  • A file's web address is different from the local file structure

    - by allanb
    I'm not sure how best to describe this (as you can clearly tell from the title) so I'll give you an example: I have a multisite Drupal installation. Each of the sites' sitemap.xml files are located on the server at /sites/example.com/files though with a browser (and to search engines) it is accessible at example.com/sitemap.xml I was wondering how this was achieved? Is this called Virtual Directory? Thank you

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  • pass string or data of local file between viewcontrollers

    - by Jonathan
    In my last question i asked how to best send a string from one view controller to another, both which were on a navigation stack: http://stackoverflow.com/questions/2898860/pass-string-from-tableviewcontroller-to-viewcontroller-in-navigation-stack However I just realised I can either pass the path to the file in the app's document's folder as the first (the table view) has already accessed the data in the file should I pass viewcontroller the data to the pushed VC?

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  • Why is this global variable not being changed???

    - by user398314
    Why does this turn up null instead of being set to the data returned from the ajax call? It must be something simple i am overlooking. var message; $(document).ready(function(){ fbFetchMessage(); alert(message); }); function fbFetchMessage(){ var url = "http://graph.facebook.com/companyname/feed?callback=?"; $.getJSON(url,function(json){ message = json.data[0].message; }); }

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  • MySQL get variable from SELECT

    - by rlb.usa
    MySQL keeps saying my syntax is incorrect. I want to do this: DELIMITER $$ DROP PROCEDURE IF EXISTS `myprocedure` $$ CREATE DEFINER=`db`@`%` PROCEDURE `myprocedure`( var_name varchar(10) ) BEGIN /* syntax errors below */ DECLARE countTemp integer; SET countTemp=(SELECT COUNT(Name) FROM mytable WHERE Name= var_name); /* more stuff */ END $$ DELIMITER ; What's the correct syntax?

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  • C++ - 3 possible values in Variable?

    - by noryb009
    I need to store a 30 letter combination, but each letter can only be "0", "1" or "2". When I use sizeof(myString), it returns 32. I want to use this 30 letter combination to access a row of an array, so I'm wondering if it is possible to use a 3 value bool of some sort to store 1 of 3 values in.

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  • Double variable argument list.

    - by Lukasz Lew
    I need something like this: class Node (left : Node*, right : Node*) I understand the ambiguity of this signature. Is there a way around it better than the following? class Node (left : Array[Node, right : Array[Node]) val n = new Node (Array(n1, n2), Array(n3)) Maybe some kind of separator like this? val n = new Node (n1, n2, Sep, n3)

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  • Unboxing object containing a value which is known to be assignable to an integer variable

    - by Wim Coenen
    If I have an object instance and I know it is actually a boxed integer, then I can simply cast it back to int like this: object o = GetSomethingByName("foo"); int i = (int)o; However, I don't actually know that the value is an integer. I only know that it can be assigned to an integer. For example, it could be a byte, and the above code would throw InvalidCastException in that case. Instead I would have to do this: object o = GetSomethingByName("foo"); int i = (int)(byte)o; The value could also be a short, or something else which can be assigned to an int. How do I generalize my code to handle all those cases (without handling each possibility separately)?

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  • Java - Does null variable require space in memory

    - by Yatendra Goel
    class CheckStore { private String displayText; private boolean state; private String meaningfulText; private URL url; public CheckStore(String text, boolean state) { this.displayText = text; this.state = state; } : : } As I am initializing only two variables (displayText and state) in the constructor, Will the rest two variables (meaningfulText and url which will have the value null) will require space in memory to store null value. Q1. I think they will require space. If they will, then how much memory does a null value takes in the memory (like int takes 4 bytes). Q2. How much space a string takes in memory. I guess it will depend on the length of the string. So how much space a string takes of how much length?

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  • Android: Unable to access a local website over HTTPS

    - by user1253789
    I am trying to access a locally hosted website and get its HTML source to parse. I have few questions: 1) Can I use "https://An IP ADDRESS HERE" as a valid URL to try and access. I do not want to make changes in the /etc/hosts file so I want to do it this way. 2) I cannot get the html, since it is giving me Handshake exceptions and Certificate issues. I have tried a lot of help available over the web , but am not successful. Here is the code I am using: public class MainActivity extends Activity { private TextView textView; String response = ""; String finalresponse=""; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); textView = (TextView) findViewById(R.id.TextView01); System.setProperty("javax.net.ssl.trustStore","C:\\User\\*" ); System.setProperty("javax.net.ssl.trustStorePassword", "" ); } private class DownloadWebPageTask extends AsyncTask<String, Void, String> { @Override protected String doInBackground(String... urls) { TrustManager[] trustAllCerts = new TrustManager[] { new X509TrustManager() { public java.security.cert.X509Certificate[] getAcceptedIssuers() { return null; } public void checkClientTrusted(java.security.cert.X509Certificate[] certs, String authType) { } public void checkServerTrusted(java.security.cert.X509Certificate[] certs, String authType) { } } }; try { SSLContext sc = SSLContext.getInstance("SSL"); sc.init(null, trustAllCerts, new java.security.SecureRandom()); HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory()); } catch (Exception e) { } try { URL url = new URL("https://172.27.224.133"); HttpsURLConnection con =(HttpsURLConnection)url.openConnection(); con.setHostnameVerifier(new AllowAllHostnameVerifier()); finalresponse=readStream(con.getInputStream()); } catch (Exception e) { e.printStackTrace(); } return finalresponse; } private String readStream(InputStream in) { BufferedReader reader = null; try { reader = new BufferedReader(new InputStreamReader(in)); String line = ""; while ((line = reader.readLine()) != null) { response+=line; } } catch (IOException e) { e.printStackTrace(); } finally { if (reader != null) { try { reader.close(); } catch (IOException e) { e.printStackTrace(); } } } return response; } @Override protected void onPostExecute(String result) { textView.setText(finalresponse); } } public void readWebpage(View view) { DownloadWebPageTask task = new DownloadWebPageTask(); task.execute(new String[] { "https://172.27.224.133" }); } }

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  • how to return static variable PHP

    - by GOsha
    function build_path($cid) { static $fr=array(); $DB = new MySQLTable; $DB->TblName = 'shop_categories'; $where['cat_id']['='] = $cid; $res = $DB->Select('cat_id,cat_name,cat_parent', $where); if($res !== false) { $pid = mysql_fetch_array($res); if($pid['cat_parent'] !== "0") { $fr[] = $pid['cat_id']; build_path($pid['cat_parent']); } else { $fr[] = $cid; $fr = array_reverse($fr); print_r($fr); return $fr; } } } print_r(build_path(100)); Why is working print_r in function, but second print_r returns NULL?

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  • C# - Must declare the scalar variable "@ms_id" - Error

    - by user1075106
    I'm writing an web-app that keeps track of deadlines. With this app you have to be able to update records that are being saved in an SQL DB. However I'm having some problem with my update in my aspx-file. <asp:GridView ID="gv_editMilestones" runat="server" DataSourceID="sql_ds_milestones" CellPadding="4" ForeColor="#333333" GridLines="None" Font-Size="Small" AutoGenerateColumns="False" DataKeyNames="id" Visible="false" onrowupdated="gv_editMilestones_RowUpdated" onrowupdating="gv_editMilestones_RowUpdating" onrowediting="gv_editMilestones_RowEditing"> <RowStyle BackColor="#F7F6F3" ForeColor="#333333" /> <Columns> <asp:CommandField ShowEditButton="True" /> <asp:BoundField DataField="id" HeaderText="id" SortExpression="id" ReadOnly="True" Visible="false"/> <asp:BoundField DataField="ms_id" HeaderText="ms_id" SortExpression="ms_id" ReadOnly="True"/> <asp:BoundField DataField="ms_description" HeaderText="ms_description" SortExpression="ms_description"/> <%-- <asp:BoundField DataField="ms_resp_team" HeaderText="ms_resp_team" SortExpression="ms_resp_team"/>--%> <asp:TemplateField HeaderText="ms_resp_team" SortExpression="ms_resp_team"> <ItemTemplate> <%# Eval("ms_resp_team") %> </ItemTemplate> <EditItemTemplate> <asp:DropDownList ID="DDL_ms_resp_team" runat="server" DataSourceID="sql_ds_ms_resp_team" DataTextField="team_name" DataValueField="id"> <%--SelectedValue='<%# Bind("ms_resp_team") %>'--%> </asp:DropDownList> </EditItemTemplate> </asp:TemplateField> <asp:BoundField DataField="ms_focal_point" HeaderText="ms_focal_point" SortExpression="ms_focal_point" /> <asp:BoundField DataField="ms_exp_date" HeaderText="ms_exp_date" SortExpression="ms_exp_date" DataFormatString="{0:d}"/> <asp:BoundField DataField="ms_deal" HeaderText="ms_deal" SortExpression="ms_deal" ReadOnly="True"/> <asp:CheckBoxField DataField="ms_active" HeaderText="ms_active" SortExpression="ms_active"/> </Columns> <FooterStyle BackColor="#CCCC99" /> <PagerStyle BackColor="#F7F7DE" ForeColor="Black" HorizontalAlign="Right" /> <SelectedRowStyle BackColor="#CE5D5A" Font-Bold="True" ForeColor="White" /> <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" /> <AlternatingRowStyle BackColor="White" /> <EditRowStyle BackColor="#999999" /> </asp:GridView> <asp:SqlDataSource ID="sql_ds_milestones" runat="server" ConnectionString="<%$ ConnectionStrings:testServer %>" SelectCommand="SELECT [id] ,[ms_id] ,[ms_description] ,(SELECT [team_name] FROM [NSBP].[dbo].[tbl_teams] as teams WHERE milestones.[ms_resp_team] = teams.[id]) as 'ms_resp_team' ,[ms_focal_point] ,[ms_exp_date] ,(SELECT [deal] FROM [NSBP].[dbo].[tbl_deals] as deals WHERE milestones.[ms_deal] = deals.[id]) as 'ms_deal' ,[ms_active] FROM [NSBP].[dbo].[tbl_milestones] as milestones" UpdateCommand="UPDATE [NSBP].[dbo].[tbl_milestones] SET [ms_description] = @ms_description ,[ms_focal_point] = @ms_focal_point ,[ms_active] = @ms_active WHERE [ms_id] = @ms_id"> <UpdateParameters> <asp:Parameter Name="ms_description" Type="String" /> <%-- <asp:Parameter Name="ms_resp_team" Type="String" />--%> <asp:Parameter Name="ms_focal_point" Type="String" /> <asp:Parameter Name="ms_exp_date" Type="DateTime" /> <asp:Parameter Name="ms_active" Type="Boolean" /> <%-- <asp:Parameter Name="ms_id" Type="String" />--%> </UpdateParameters> </asp:SqlDataSource> You can see my complete GridView-structure + my datasource bound to this GridView. There is nothing written in my onrowupdating-function in my code-behind file. Thx in advance

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  • Linux: programatically setting a permanent environment variable

    - by Richard
    Hello All, I am writing a little install script for some software. All it does is unpack a target tar, and then i want to permanently set some environment variables - principally the location of the unpacked libs and updating $PATH. Do I need to programmatically edit the .bashrc file, adding the appropriate entries to the end for example, or is there another way? What's standard practice? Thanks

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  • Using pthread condition variable with rwlock

    - by Doomsday
    Hello, I'm looking for a way to use pthread rwlock structure with conditions routines in C++. I have two questions: First: How is it possible and if we can't, why ? Second: Why current POSIX pthread have not implemented this behaviour ? To understand my purpose, I explain what will be my use: I've a producer-consumer model dealing with one shared array. The consumer will cond_wait when the array is empty, but rdlock when reading some elems. The producer will wrlock when adding(+signal) or removing elems from the array. The benefit of using rdlock instead of mutex_lock is to improve performance: when using mutex_lock, several readers would block, whereas using rdlock several readers would not block.

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  • session variable not available in global before(:each, :type => :controller)

    - by Rob
    Hi, I'm refactoring some specs, in controller specs I have a before(:each) which sets up things required in the session my before filter is... config.before(:each, :type => :controller) do ... session[:current_user] = @user session[:instance] = @instance ... end @user and @instance are also set in the before(:each) i've just hidden them for readability here I get the following error when running the controller tests undefined method `session' for nil:NilClass I would expect the global before callbacks to have the same things as the ones in the individual tests but I guess maybe they are loaded before the rails environment has been initialised? Thanks

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  • Removing the last character of a string IF it is $variable

    - by KeenLearner
    Hi there, I've made a little script to convert titles into url friendly things. ie: 'I am a title' becomes 'I_am_a_title' My script basically goes through and turns spaces, apostrophes, commas etc etc into an underscore. The problem is, sometimes my url's end up like this: 'i_am_a_title_' with a trailing underscore... So i figure, add a little bit to go through and search to see if the last character is an underscore on the final result, and if it is, then swap it. I looked into the strrchr() function but I seem to be hitting a wall of my own understanding. How is this sort of thing accomplished?

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  • Cannot running next process when a variable save no value

    - by bruine
    First, I wanna compare between 2 tables tb_wrapper and tb_summary to get the data in the tb_wrapper that doesn't exist in the tb_summary then save in $link. If I don't get the same data, I want to print the result $link. When I don't get the not same data, I want it to go to another process. Here's the code : $q2 = mysql_query(" SELECT a.doc_url FROM tb_wrapper a LEFT JOIN tb_summary b ON a.doc_name = b.doc_summ WHERE b.doc_summ IS NULL"); while ($row = mysql_fetch_array($q2)){ $link = $row['doc_url']; if (!$link){ include 'next_process.php'; } else { print_r($link); } } it doesn't work. When I don't get the not same data or $link not save a value. table : CREATE TABLE tb1 (`id` int, `doc_name` varchar(100), `doc_url` varchar(50)) } CREATE TABLE tb2 (`id` int, `doc_summ` varchar(100)) }

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