unset Questions
27
Solved
Is there an easy way to delete an element from an array using PHP, such that foreach ($array) no longer includes that element?
I thought that setting it to null would do it, but apparently it does...
13
Solved
I have a global variable in JavaScript (actually a window property, but I don't think it matters) which was already populated by a previous script, but I don't want another script that will run lat...
Tribble asked 20/10, 2009 at 19:23
7
Solved
Before installing gnuplot, I set the environment variable GNUPLOT_DRIVER_DIR = /home/gnuplot/build/src. During the installation, something went wrong.
I want to remove the GNUPLOT_DRIVER_DIR enviro...
Heaps asked 29/7, 2011 at 18:58
11
Solved
I want to remove a key from a dictionary if it is present. I currently use this code:
if key in my_dict:
del my_dict[key]
Without the if statement, the code will raise KeyError if the key is not ...
Gabriello asked 30/6, 2012 at 20:27
4
Solved
I am playing around with arrays in PHP, and I've get confused about unset() function, here's the code:
<?php
$array = array(1, 2, 3, 4);
foreach ($array as $value) {
$value + 10;
}
unset($val...
16
Solved
How do I unset a readonly variable in Bash?
$ readonly PI=3.14
$ unset PI
bash: PI: readonly variable
or is it not possible?
3
Solved
I have a multidimensional array like this:
[
[
'id' => 1,
'name' => 'John',
'address' => 'Some address 1'
'city' => 'NY'
],
[
'id' => 2,
'name' => 'Jack',
'address' =>...
6
Solved
Not sure why this is occurring: Basically, I have an array that contains the following arrays, see var_dump:
array(2) {
[0]=> array(1) {
[0]=> string(3) "ivr"
}
[1]=> array(1) {
...
Beattie asked 5/9, 2012 at 21:1
6
I have this array $output which looks like this:
Array(
[0] => Array(
[0] => 1a
[1] => 1b
[2] => 1c
)
[1] => Array(
[0] => 2a
[1] => 2b
[2] => 2c
)
[2] => Arra...
Grimalkin asked 31/8, 2011 at 16:44
5
Solved
Is it a requirement of good TCL code? What would happen if we don't use the "unset" keyword in a script? Any ill-effects I should know about?
I'm inheriting some legacy code and the errors that co...
3
Solved
Have any way to unset different variables using a one command?
unset HTTP_PROXY
unset HTTPS_PROXY
unset FTP_PROXY
unset ALL_PROXY
unset NO_PROXY
4
Solved
I am using simple php unset() function to remove and index of array but it's showing the following error:
Parse error: syntax error, unexpected 'unset' (T_UNSET)
Here is my erroneous code:
echo $t...
18
Solved
I've tried searching the php manual and internet on how to delete cookies and I've tried it the exact same way they all say:
setcookie("name", '', 1);
or
setcookie("name", '', time()-3600);
B...
6
Solved
I iterate through an array of objects and want to delete one of the objects based on it's 'id' property, but my code doesn't work.
foreach($array as $element) {
foreach($element as $key => $va...
4
Solved
Trying to unset automatically all variables in script.
Have tried this way:
echo '<br /> Variables in Script before unset(): <br />';
print_r(array_keys(get_defined_vars()));
echo ...
Fructiferous asked 8/10, 2014 at 1:42
6
Solved
How do I overwrite (or unset and then set) an array? Seems like "array = new_array" doesn't work.
Mouser asked 12/10, 2009 at 16:47
7
7
Solved
How can I remove an element of an array, and reorder afterwards, without having an empty element in the array?
<?php
$c = array( 0=>12,1=>32 );
unset($c[0]); // will distort the array.
...
10
Solved
If I want to remove the last element of an array, I can use either of these two code:
array_pop($array); (the return value is not used)
unset($array[count($array) -1]);
Is there any performance...
7
Solved
I'm trying to unset specific values using if statement.
My code is
$fruits = ['apple', 'orange', 'melon', 'banana', 'pineapple'];
for ($i = 0 ; $i < count($fruits); $i++){
if ($fruits[$i] ==...
1
Solved
So basically I made this situation, the parent has the css all: unset.
Then I notice when I use Safari(Version 12.1.1 (14607.2.6.1.1)) all the children of it color only can be effected by * block,...
6
How I can destroy an const? I tried unset( KEY ), but not work.
<?php
define('KEY', 'value');
echo KEY; //output value
unset( KEY ); //no work
?>
3
Solved
I have an array
$cars = array("Volvo", "BMW", "Toyota", "Mercedes");
I wanted to remove first element "Volvo" and i use this
unset($cars[0]);
Now i have an array like this:
Array
(
...
1
I have recently updated my Github password at work (corporate Github account). I had configured Git on one of my VM which is Windows 10. Not whenever I do git pull or git push it throws error...
1
Solved
EDIT: This has been confirmed to be a bug and will be fixed: https://lists.gnu.org/archive/html/bug-bash/2018-03/msg00055.html
So I'm messing around with bash's indirection feature, namerefs. I ...
Reading asked 8/3, 2018 at 17:59
1 Next >
© 2022 - 2024 — McMap. All rights reserved.