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
0
votes
2 answers
Using array value with index as Variable Variable
The title may be a little confusing. This is my problem:
I know you can hold a variable name in another variable and then read the content of the first variable. This is what I mean:
$variable = "hello"
$variableholder = 'variable'
echo…
fedejp
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0
votes
4 answers
Parse variables within string
I'm storing some strings within a *.properties file. An example of a string is:
sendingFrom=Sending emails from {$oEmails->agentName}, to {$oEmails->customerCount} people.
My function takes the value from sendingFrom and then outputs that string…
James
- 5,137
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0
votes
3 answers
How can I access methods based on strings in an array?
Hello!
I'm not even sure if this is possible, but hopefully it is in Java. I know I've done it in PHP by using variable variables and accessing a variable dynamically, but I read this isn't possible in Java in a different question.
I have an array…
Chris Dale
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0
votes
2 answers
PHP Error when using variable variable to insert data into static variable
I'm not very good at this, so I'm sure this is a stupid question.
I have a class:
class debug {
private static $messages = array();
private static $errors = array();
private static $all = array(); // includes both of above
private static…
Buttle Butkus
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0
votes
4 answers
variable variables + objects in fields
I am trying to do something with variable variables and I got stuck on an object problem. Imagine this class setup:
class A
{
public $field = 10;
}
class B
{
public $a;
public function __construct()
{
$this->a = new A();
}
}
Now…
Santhos
- 3,348
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-1
votes
1 answer
Variable global variable?
I'm trying to automatically sanitize input on an array of global variables like so:
$sanitize = array('_POST', '_GET', '_REQUEST', '_COOKIE', '_SESSION');
foreach($sanitize as $type){
$property = trim(strtolower($type), '_');
…
wyqydsyq
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-1
votes
3 answers
Variable variables, functions and classes
I just recently discovered variable variables in PHP, needless to say, it´s usefulness is immense:
$name = "ABC";
$$name = "DEF";
echo ${"ABC"}; //Gives: DEF
That got me thinking, which brings us to my question:
Since we can have names that´s…
Marcus Hansson
- 816
- 2
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-1
votes
1 answer
Extracting json data using variable variables?
I have a .json file with some data I'm trying to extract. What I need to know is how I would go about making the below variable dynamic.
$MapData['MapData']['0,0']['type'];
What I need to know is how I would replace the 0,0 with $x,$y variables.…
Born2DoubleUp
- 109
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- 10
-1
votes
1 answer
How to for loop 10 times values in single string using comma?
How I can use for loop PHP to create same result in $d4_c_d_v as below?
Note: $d4_c_d_v must end without comma at the end.
$d4_c_d_v =
$g_demographics_value_0['id'] .','.
$g_demographics_value_1['id'] .','.
$g_demographics_value_2['id']…
Adam Makowski
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- 5
-1
votes
1 answer
How to use foreach to loop through a file with variable variable?
The following PHP code using foreach does not seem to work. I believe it has to do with "".
I've shared the entire codebase.
Does anyone know what is wrong with my statement?
// include/functions.php
user6332864
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-1
votes
1 answer
Class & Object Scope for Variable Variables in PHP
Question 1) Why is the Variable/variable $this->$template not visible to parse_and_return(), lines 42-50, but visible to $this->fetch, lines 456-472. I thought parse_and_return and $this->fetch belong to the same object, therefore $this->$template…
mmtalon
- 47
- 7
-1
votes
1 answer
Variable in global variable: "global variable{variable}". It works, but is it OK?
TL;DR: Say I have a global instantiated class
$GLOBALS['my_plugin'] = instance();
and I want to use it somewhere else, but I dont know the name 'my_plugin'. Actually I do of course, but my helper files don't. In order to So I use;
$plugin_name =…
Emin Özlem
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- 13
-1
votes
1 answer
PHP: Unable to use variable variables for multi-dimensional array access
I'm working on a config tool allowing flexible config for some code to fetch specific array elements (in this example, POST vars). (I am aware this problem could be solved with a recursive call, but ran into a curiosity I don't understand.)
The…
Ben Dauphinee
- 4,061
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-1
votes
1 answer
CodeIgniter access model with $$ fails
I have a model called Treatment in CodeIgniter. I want to load and use this model 'dynamically'. That is, I don't want to have to call it directly by name (I am trying to generalize some code to use whatever model I tell it).
So, I do…
Jarrett
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-1
votes
1 answer
How can I use variable in $_POST[....]
That's my code:
for($zm=1; $zm<=$ilosc; $zm++){
$aaa.$zm = $_POST['bbb.$zm'];
}
I want to use variable
$zm in $_POST --> ( $_POST['bbb.$zm'] );
What is the proper form?
Yolo
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