Language feature of PHP: A variable variable takes the value of a variable and treats that as the name of a variable.
Language feature of PHP: A variable variable takes the value of a variable and treats that as the name of a variable.
Questions tagged [variable-variables]
171 questions
1
vote
7 answers
How can I use a variable variable in PHP?
Here is what I am trying to do:
The above code prints '$my_str' to the screen. But I want it to print 'My String', as in the actual…
AnonPHP
0
votes
1 answer
OO PHP returning all private variables as variables on page
I have the following class, which has a lot of private variables.
class plantOfTheMonth {
//Declare which centre(s) are being used
private $centre = "";
//Declare the attributes of the current Plant Of The Month
private $name = "";
private…
Phil Young
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0
votes
2 answers
Using variable variables in simple PHP function
The other day I was given this huge set of arrays and told to make a HTML page with a bunch or selects/radio buttons so I wrote some simple functions to simplify things.
This is my function to generate very large HTML selects.
function…
Spunkie
- 137
- 6
0
votes
0 answers
How can I echo a php variable that's INSIDE a php string variable?
I've got a database full of text fields, all of which contain WITHIN them the characters $myvariable.
When I retrieve such text field and save it as a php variable, say as $myDBtext, I can definitely echo it, but I'm having really hard time echoing…
Daniel F
- 1
0
votes
3 answers
Displaying Dynamic Variable Value
I have a form that will ultimately create a pipe delimited text file. The form contains multiple rows each row has multiple drop down fields named 1_cat[], 2_cat[], 3_cat[] etc.
In the form submission script I have:
if ($submit) {
…
MarkHFLA
- 107
- 1
- 10
0
votes
2 answers
How to generate properties of instances of classes in batches?
I have a class named MyClass. I want to generate the attributes k_10sec to k_1d of the instance in batches when generating instances of the class.
How do I modify the code?
bars = ['10sec', '1min', '5min', '30min', '1d']
class MyClass:
def…
jaried
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0
votes
2 answers
PHP variable variable not overriding original variable
I am trying to override some variables in my PHP file using variable variables, but I am getting unexpected results, where the original value is never overwritten, but where the new variable-variable value has a unique value from that of its…
Brandon McConnell
- 5,776
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0
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1 answer
How do I create a dynamic variable based on the row number I am iterating over in an Excel sheet while using openpyxl?
I am trying to iterate over all the rows in an Excel worksheet and set a variable based on the cell that is currently being iterated over. Below is the code that I am using:
import openpyxl
from openpyxl import load_workbook
wb =…
ak40837
- 13
- 1
- 6
0
votes
3 answers
How to check if function exists inside another function using Javascript
I`m trying to build an function that load script on-demand. That is my current code:
function loadScript(src, name = null)
{
var dfd = jQuery.Deferred();
if (name === null) {
name = src.split(/\\|\//); // split by folder separator
…
Bruno Natali
- 13
- 3
0
votes
4 answers
php variable variables and array or straight code?
I am using code igniter.
I have quite a large list of items being sent through post, some will be set, some wont be.
I have two ways of approaching the same problem.
/*DYNAMIC CODING */
$fields = array(
'field1', 'field2',
'field3', 'field4',
…
Hailwood
- 89,623
- 107
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- 423
0
votes
1 answer
Variable Variable in django template
view.py
variable = 'amount'
amount = 200
print(variable) #actual: 'amount' expected: 200
In such case, is it possible to use Variable Variable like PHP?
in php, I could do
$variable = 'amount';
$amount = 200;
echo $$variable;
I know it might be…
Wils
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0
votes
1 answer
How would I use the contents of one variable to create the name of another?
I'm creating code that creates new user identifications for users, and then adds all their account details to a dictionary and then adds this dictionary to another dictionary of all the accounts.
My problem is that I need each of these 'accounts',…
always-confused
- 7
- 2
0
votes
1 answer
Passing variable variable into closure throws a parse error?
I just noticed that if you try to put a variable variable into a use list of a closure, it throws a parse error. Example code:
foreach ($array as $key => $item) {
$$key = $item->something;
$this->doSomething($key, function ($param) use…
aborted
- 4,481
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0
votes
3 answers
can array values be accessed by variable variables?
I have an array which I can only access correctly via variable variables, like so:
$foo['bar'] = "pie";
$fixed_name_variable = "foo['bar']";
echo $$fixed_name_variable;
Which in theroy echo's pie. Except it's just not returning anything. So I…
YsoL8
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0
votes
2 answers
How can I make a variable's name from another variable AND string?
Say I had the variable $foo which has a value of "bar" and I wanted to make a variable variable from it, but also append the string "123" to it, so that the variable name is $bar123. How would I do this?
I already know that $$foo = "abc123" would…
David Wheatley
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