Interesting questions
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answer134
viewsPHP: Retrieve ID from a Simplified URL
I have a URL like this: http://localhost/oficina2/home.php? id=12345 I’m simplifying for: http://localhost/oficina2/? 12345 How do I recover this id (12345) on any page? I tried it like this: $url =…
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votes2
answers44
viewsStore words in a "char" vector
I’m trying to make an algorithm that returns the region of the CPF that was informed, but I’m bumping into the character limit that a variable of the type char allows in C language. I tried to…
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votes1
answer137
viewsHow to save the data by removing the characters from Mask using Laravel 5.6?
Hi, I’m using Laravel, and I want to save the data after done a calculation. I am using the Jquery Mask plugin to facilitate user understanding. However, I have no idea how to filter Mask data to…
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votes2
answers74
viewsProblem passing value by URL
I’m trying to create a more dynamic way to load the pages I’m using, loading files like CSS on just one page, and from that page, calling others. However, I cannot receive the value I am going…
phpasked 8 years, 7 months ago Lucas Ramos 321 -
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answers449
viewsCAPTCHA Google in Java
I’m having trouble deploying Google’s CAPTCHA. On the form page I added the script and the div of captcha: <head> <script src='https://www.google.com/recaptcha/api.js'></script>…
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votes1
answer78
viewsUndefined index php help
Good people I’m doing a php test and gave me an error that I’m not able to solve this is the test: and here’s my job the error and on line 22…
phpasked 8 years ago Fábio Fernandes 1 -
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votes1
answer349
viewsRegular Expression that makes SQL Injection impossible
I’m looking for some way to avoid SQL Injection in the system I’m developing. Is there any regular expression that perceives the attempt of a possible SQL Injection attempt? Do you know any other…
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answer513
viewsValidation of two selects
I have two camps select, I have states and other cities. I need to select in a select one state, ex: São Paulo and the other select bring only the cities of Sao Paulo.…
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answer509
viewsMethod that returns Java date/time
After researching several posts referring to the subject, I did not find an example where I create an "external" class (other than the main one for example) and main call the method that gives me…
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votes1
answer59
viewsHow do I fix this mistake
I’m new in programming for android, I know java and c#, I want to press the button and change the label text only managed to appear on Toast package gabriel.meaperte; import…
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votes5
answers1043
viewsMatrix Nxm (2D) in Python with Numpy
I’m trying to solve a college activity, but I couldn’t transpose the logic into the code. The case is as follows: "The user will enter two integers. These integers will determine the size of the…
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answer893
viewsHow to get javascript file content in string form?
I am making a program that needs to read the source code of a javascript file. I was trying to get the javascript file via Xmlhttprequest and return the this.responseText, however, its value is…
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votes1
answer187
viewsResultset Return null in Java
I use the code below to check in Postgre if the table exists, running the Query in Pgadmin have as answer value null. But apparently Resultset will never return null. Is there any way to compare RS…
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votes2
answers91
viewspart of my php code is displayed in the browser when I do not open with localhost. How do I resolve?
if ($validacao) { $pdo = Banco::conectar(); $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); $sql = "INSERT INTO perguntas (p1, p2, p3, p4, p5, p6, p7, p8, p9, p10) VALUES…
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votes0
answers26
viewsWhat does the !! operator mean in a Return
I know the exclamation (!) is the denial of my expression, but in my function has two exclamations, example: public get isChecarAlgo() { return !!this.algumValorNumerico; } In that case, what does…
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answer156
viewsWhy don’t push notifications from my app using one Signal arrive with the app closed or in the background?
I’m using one Signal to send the push notification to my app, I saw several tutorials to create the notifications and I did so : configuration of app/build Gradle: dependencies { implementation…
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answer601
viewsHow to save a json object to mongodb, which is the answer to an API post
I need to save a certain field,from a json object,which comes from the response of an API I called. Save some fields of this response json object,in some fields of my colletion/model on Mongodb also…
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answer2009
views"Incorrect datetime" value in Mysql
Hello, I’m trying to enter dates in the format dd/mm/Y in two jTextField, in MYSQL, however I get an error message only for the first field: Incorrect datetime value: '01/01/2016' for function…
mysqlasked 9 years, 3 months ago Claudio Pedra 83 -
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votes1
answer78
viewsWeapon w = new Weapon(42); is that correct?
Had this question in a programming test Consider the Abstract Weapon class. Does the code line below present an error? Justify your answer. Weapon w = new Weapon(42); That is my answer and the…
structured-programmingasked 8 years, 3 months ago Rodrigo Carvalho 3 -
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votes3
answers318
viewsConverting a datetime to text does not show the result
I have a date in this format: Quarta, 21 Maio, 2014. To save this date in the database I’m converting it to datetime as follows: $f['data'] = $_POST['data']; $data = DateTime::createFromFormat('l, j…