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database - retrieve data from db and display it in table in php .. see this code whats wrong with it?

$db = mysql_connect("localhost", "root", ""); $er = mysql_select_db("ram"); $query = "insert into names values('$name',' ... </td> </tr>"; } ?> See Question&Answers more detail:os...

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javascript - Prototype AJAX request being sent as OPTIONS rather than GET; results in 501 error

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Rijndael 256 Encrypt/decrypt between c# and php?

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Java: Non-static nested classes and instance.super()

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jsf - Reset input fields without executing validation

I have a Facelets view as below: <h:form id="f1"> <p:panelGrid id="p1" columns="2"> <p: inputText ... button as it creates some other problems. See Question&Answers more detail:os...

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java - Manifest merger failed : Attribute application@appComponentFactory updating Firebase libraries

I am trying to add firebase in my project but when I implement 'com.google.firebase:firebase-messaging:19. ... " doesn't work though See Question&Answers more detail:os...

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language agnostic - Should we compare floating point numbers for equality against a *relative* error?

So far I've seen many posts dealing with equality of floating point numbers. The standard answer to a question ... to provide a simple test. See Question&Answers more detail:os...

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javascript - Is there a way using Jquery to detect the back button being pressed cross browsers

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c++ - Why is std::cout not printing the correct value for my int8_t number?

I have something like: int8_t value; value = -27; std::cout << value << std::endl; When I run my ... correct value. Does anyone have any ideas? See Question&Answers more detail:os...

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php - Get last modified file in a directory

Is there a way to select only the last file in a directory (with the extensions jpg|png|gif?) Or ... directory and check using filemtime? See Question&Answers more detail:os...

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php - Retrieve (or simulate) full query from PDO prepared statement

I stumbled upon this question from two years ago. Is there a way to get the raw SQL string executed when calling ... one, please let me know. See Question&Answers more detail:os...

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performance - Java: how much time does an empty loop use?

I am trying to test the speed of autoboxing and unboxing in Java, but when I try to compare it against an ... two loops still took some time? See Question&Answers more detail:os...

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php - adding a namespace when using SimpleXMLElement

This is what I am after  <ws:Test> <ws:somename2>somevalue2</ws:somename2> <ws: ... see the ws: is missing from Test See Question&Answers more detail:os...

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dom - cloning javascript event object

Anybody know how to do a deep copy/cloning of a native javascript event object? I know I can create a new event ... 's a way to just clone. See Question&Answers more detail:os...

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java - Variable is already defined in method lambda

Consider the following almost compilable Java 8 code: public static void main(String[] args) { LinkedList ... considered already defined? See Question&Answers more detail:os...

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javascript - Lat Long to X Y Z position in JS .. not working

var phi = (90-lat)*(Math.PI/180); var theta = (lng+180)*(Math.PI/180); marker_mesh.position.x = ... y: 332.8157297895266 z: 353.3927238766871 See Question&Answers more detail:os...

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apache spark - How to group by common element in array?

I am trying to find the solution in spark to group data with a common element in an array. key value [ ... implement this for a single feature. See Question&Answers more detail:os...

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python - Math Expression Evaluation

What is the best way to implement a python program that will take a string and will output its result according to ... to know how to do this. See Question&Answers more detail:os...

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.net - DataTrigger not firing

I have the following xaml: <DockPanel> <DockPanel> <CheckBox IsChecked="{Binding Path=Test}" /> <CheckBox IsChecked= ... What am I doing wrong? See Question&Answers more detail:os...

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php - Is there any sort of "pre login" event or similar?

I need to run some code prior to checking if a user's credentials are correct. Currently I'm achieving this ... dispatch a custom event myself? See Question&Answers more detail:os...

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android - Upload an image using Google Volley

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ruby - Using WWW:Mechanize to download a file to disk without loading it all in memory first

I'm using Mechanize to facilitate the downloading of some files. At the moment my script uses the following ... Mechanize's cookies with it? See Question&Answers more detail:os...

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javascript - Age calculation

Having 2 javascript Dates, first is birthdate and second is a date to calculate age from that date. What should be the best way to do this. See Question&Answers more detail:os...

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Windows Unicode C++ Stream Output Failure

I am currently writing an application which requires me to call GetWindowText on arbitrary windows and store that ... to all standard streams. See Question&Answers more detail:os...

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c# - Add Controller in MVC4 not working

I'm using VS 2010 Premium. I have a MVC4 project using SqlCe 4.0 with a entity framework model. Model is: ... each type of server being used. See Question&Answers more detail:os...

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r - Returning first row of group

I have a dataframe consisting of an ID, that is the same for each element in a group, two datetimes and the time ... 9L), class = "data.frame") See Question&Answers more detail:os...

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

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