variables

php for loop varable names

i got a code of 100-200 rules for making a table. but the whole time is happening the same. i got a variable $xm3, then i make a column . next row, i got $xm2 and make column. next row, i got $xm1 and make column. so my variables are going to $xm3, $xm2, $xm1, $xm0, $xp1, $xp2, $xp3. is there a way to make a forloop so i can fill $xm a...

What's the largest variable value in iphone?

I need to assign 2,554,416,000 to a variable. What would be the primitive to use, and what would be the object representation class to use? Thanks. ...

Access PHP var from external javascript file

I can access a PHP var with Javascript like this: <?php $fruit = "apple"; $color = "red"; ?> <script type="text/javascript"> alert("fruit: " + "<?php echo $fruit; ?>"); // or shortcut "<?= $fruit ?>" </script> But what if I want to use an external JS file: <script type="text/javascript" src="externaljs.js"></script> ex...

Why doesn't PHP appear to store my variables?

I have a page that allows the user to draw an image using HTML5 canvas, convert it into text with JavaScript and post it to a PHP page. http://dsiextensions.co.cc/chatdraw.php The page is quite confusing, each text box is for each line of to 100px X 100px canvas. To put the data in the boxes, click "Finish" and then click "Submit" (Sorr...

please suggest good variable names that represent theirself ( php)

Hi all, it may be wrong place to ask this question, but i hope u all programmer must have the interesting naming convention of variables. i have seen many places that some variable names are very good n effective like common variable names $link $db $connect $query $stmt $sql $qry $output $result $list so please suggest me s...

PHP pass variable after form is submitted

I have a form that posts to process.php. Process.php send all the data to mysql then returns back to the page using: <?php header("Location: /campaigns"); ?> On the page it returns to I want to display a message saying form submitted. Can I post a variable to the Location: /campaigns. And use the variable to display the message (or mo...

How to use environment variable in #import c++ command?

Hello, nowadays I have this piece of code: #import "C:\Users\Public\SoundLog\DLLs\ForPython\SoundLogDLL.tlb" named_guids but I want to substitute the C:\Users\Public part by the %PUBLIC% environment variable. How can I do this ? ...

C++ - 3 possible values in Variable?

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. ...

PHP mySQL query's and PHP Variables

I'm trying to make an OO Login system for a project I'm working on, and am having trouble with inserting variables into the query strings. In the code below, if I replace "$TBL_NAME" with the actual table name it works. Why isn't $TBL_NAME translating to the value of $TBL_NAME? class UserDB { private $TBL_NAME = "users"; public ...

.tex files not found when placed in a folder declared in TEXINPUTS

I have a set of documents based on a LaTeX template. Every document has its own folder, as following: docs-folder |-doc #1 |-doc #2 ... |-doc #n |-texmf |-tex |-bibtex |-fonts |-docs |-misc |-logo.jpg |-acronyms.tex I wrote the template on my own, and, for every document (from #1 to #n) it loads the files...

Calling/selecting variables (float valued) with user input in Python

I've been working on a computational physics project (plotting related rates of chemical reactants with respect to eachother to show oscillatory behavior) with a fair amount of success. However, one of my simulations involves more than two active oscillating agents (five, in fact) which would obviously be unsuitable for any single visual...

Pass variable name to a function in r

Is it possible to pass just a variable name in a function call and have it utilised as such within the function?? pseudocode: q<-function(A){ b<-(w%in%A.2|w%in%A.7) factor(b,levels=c(F,T),labels=c("non-"A,A))} w<-c(0:10) e.2<-c(1,2) e.7<-c(6,7) what I´d like to do is q(e) and have returned non-e,e,e,non-e,non-e,e,e,...

Sending variables in URLs in PHP with echo

Hi all, I can't really find good guidelines through google searches of the proper way to escape variables in URLs. Basically I am printing out a bunch of results from a mysql query in a table and I want one of the entries in each row to be a link to that result's page. I think this is easy, that I'm just missing a apostrophe or backslas...

Column variables in Excel?

Let's say I have column A and Column B. Cells in Column A contain either "Y" or "N". How can I set the value of the cell in the corresponding row in Column B with a formula that detects if the cell's value = "N"? Not new to programming logic but to Excel formulas, thanks for your help. -Ryan ...

Why use constants in programming?

I've just been going back over a bit of C studying using Ivor Horton's Beginning C book. I got to the bit about declaring constants which seems to get mixed up with variables in the same sentence. Just to clarify, what is the difference in specifying constants and variables in C, and really, when do you need to use a constant instead of...

Storing values of an array in one variable

Hello, I am trying to use md5 code to calculate checksums of file. Now the given function prints out the (previously calculated) checksum on screen, but I want to store it in a variable, to be able to compare it later on. I guess the main problem is that I want to store the content of an array in one variable. How can I manage that? ...

using object in multiple function

Hi. How can i use object from one function in another ? main() { private void button1_click { MyClass object = new MyClass(); object.blabla(); } private void button2_click { // how can i use object from button1_click ?? } } ...

Putting a variable inside a string (python)

Hi I am quite new to python and this is probably quite a basic question but the help would be much appreciated. I would like to put an int within a string. This is what I am doing at the moment.. end = smooth(data,window_len=40) plot.plot(time[0:len(end)],end) plot.savefig('hanning(40).pdf') #problem line I have to run the program fo...

Is it possible to use an incremental value within a variable name whilst declaring it within a loop?

Hi, I'm creating function which will read different XML files each time that will contain different amounts of the same nodes. I have already created a loop which stores the ID of each node into an array, and now I want to create variables for each array member which store attributes of the node with each ID. Because the number of nod...

How can I use a value of JSP in Javascript code?

Hello, I have a list of elements, each of them appeared in my page through jsp. So I have this: <div id="title"><%= list.get(ind).getTitle() %></div> When I display the elements, as this tag is in for loop, I get everything right. Now I what to place a button for deleting each of this elements. What I have done is: <input type="submi...