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php - Fatal error: Call to a member function prepare() on a non-object in

this is how I have to build the transmitters infomation on to a php file to send to login page when it is < ... can help me with this problem! See Question&Answers more detail:os...

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linux - NGINX Redirect URL with Query Strings

I have this NGINX configuration: root /var/www/web; index index.php; server_name domain.com; access_log off; error_log ... } but it didnt work.. See Question&Answers more detail:os...

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vagrant - PhpStorm + Xdebug: Connection established, no Debug window popup in PhpStorm

I'm struggling to get PhpStorm and Xdebug to play nicely on a specific Vagrant VM. How can I effectively track ... > Languages > PHP > Debug: See Question&Answers more detail:os...

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swing - Creating a submenu in context menu from overridden getActions in Java JHotDraw

I am overriding the getActions method in the Java based framework JHotDraw, an open source project hosted here. ... menu? return popupMenu; } See Question&Answers more detail:os...

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changing pointers in functions, c

I'll say in advance that I'm asking about pointers to pointers, so my words may be a bit vague, but try to ... . Is this for the same reason? See Question&Answers more detail:os...

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x86 - Convention for displaying vector registers

Is there a convention for displaying/writing large registers, like those available in the Intel AVX instruction ... in commodity SIMD hardware. See Question&Answers more detail:os...

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ios - Battery-safe coding

I was wondering if there are some rules or hints how to prevent battery drain directly while coding. I ... service and internet connection? See Question&Answers more detail:os...

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visual studio - xaml designer or previewer is not showing

Xamarin.Forms design view doesn't show for the preview of the .xaml What could I do? I looked for an answer and ... get them? This is my view: See Question&Answers more detail:os...

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java - PDF Page re-ordering using itext

i am using itext pdf library. can any one know how can i move pages in existing pdf? Actually i want to move ... Can any one explain in detail? See Question&Answers more detail:os...

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mysql - Coverting Hex to Image in PHP?

I am developing mobile app which talks with server via PHP Webservice. This is my first time using PHP. I ... Any help is much appreciated. See Question&Answers more detail:os...

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android search dialog customization

After several searches I couldn't figure out how to customize the search dialog (the top search bar that ... Any helpful pointers please... See Question&Answers more detail:os...

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x86 - What's difference between number with $ or without $ symbol in at&t assembly syntax?

Let's say .data section has following item: 0x1234 00010203 04050607 08090a0b 0c0d0e0f 0x1238 10000000 And in ... between two instruction? See Question&Answers more detail:os...

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html - JavaScript to make a fast-running image slideshow?

I am making an image slideshow using native JS. I decided to make it myself because it needs to run at ~100ms ... and it's now working fine! See Question&Answers more detail:os...

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asp.net - Could not load file or assembly 'Microsoft.Office.Interop.Excel, Version=14.0.0.0

I have web-site that uses MS Excel files read/write. I added related dll's to Bin folder of the site, and ... How to resolve this issue? Thanks. See Question&Answers more detail:os...

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jsf 2 - Validate class level bean validation constraints in JSF

It seems that JSF 2.0 does not call "class level constraints". Quoting from an SO answer JSF 2.0 ... the model values through a Validation. See Question&Answers more detail:os...

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xml - extract data from raw html in R

I am trying to extract the values of all the values in all tabs from this page. http://www.imd.gov.in/ ... url, destfile = "E:\indiaprecip") See Question&Answers more detail:os...

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c# - Bind Dictionary with list in viewmodel to checkboxes

How do you properly bind a Dictionary and it's values per key to checkboxes? I can display them in the ... filled in. } any suggestions? See Question&Answers more detail:os...

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c# - How to compare two images?

public void winCheck() { if (button1.Image == img1) { w1 = "P2"; button1.Image = new Bitmap(@"win_cross.png ... that value of both will be same. See Question&Answers more detail:os...

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Firebase orderByChild with startAt()'s second argument w/ pagination not ordering

I have a Firebase invocation which looks like this, ref.child(`floorPosts/${this.props.floorName}`) . ... the snapshot.forEach code. See Question&Answers more detail:os...

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java - Why is it important to use invokeLater?

I recently found an example code: public static void main(String[] args) { javax.swing.SwingUtilities.invokeLater( ... What is the difference? See Question&Answers more detail:os...

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installation - Wix custom uninstallation action - how to run before msi removing files

I have a custom action that adds files to the installation directory. When the program is being uninstalled, ... the main installation dir? See Question&Answers more detail:os...

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python - why is 'ord' seen as an unassigned variable here?

I hope it's not a duplicate (and at the same time it's difficult to tell, given the amount of questions with such ... Python 2.7 and Python 3.4) See Question&Answers more detail:os...

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javascript - jQuery - wrap all unwrapped text in p tags

I have a situation where the following code is getting written to my page. <div> Some text here which is ... so any help would be appreciated. See Question&Answers more detail:os...

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javascript - How does the comma operator work in js?

I'm trying to understand how the comma operator (,) works in JavaScript, it seems to have a different behaviour when it ... log(c); //output : 1 See Question&Answers more detail:os...

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java - Source not found Android?

am facing a problem in Eclipse android development tool Source not found EDIT SOURCE LOOKUP PATH while i debug ... new to android development.. See Question&Answers more detail:os...

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haskell running out of memory with finite lists

I run out of memory trying to run moderate inputs such as this: variation_models 15 25 also running higher ... in memory usage? replicateM? See Question&Answers more detail:os...

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windows - NLTK v3.2: Unable to nltk.pos_tag()

Hi text mining champions, I'm using Anaconda with NLTK v3.2 on Windows 10.(client's environment) When I try to ... and alvas are a better fix. See Question&Answers more detail:os...

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rust - How can I borrow from a HashMap to read and write at the same time?

I have a function f that accepts two references, one mut and one not mut. I have values for f inside ... in comparison with HashMap::get/get_mut See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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