In bash you can do something like this: But this will give a substitution error in zsh. I haven't found a really great way to do this in zsh. Pres ...
I can't explain the following behavior of unset: #!/bin/bash my_unset() { unset "$@"; } fn1() { local var; unset var; var=1; } fn2() { local var ...
I have an associative array in my PHP code. I want to unset all the keys that have empty value. I know individual keys can be unset using the followin ...
below is my controller code. and my end point is below ...
I have a simple class and assign its instance to its static variable. When I unset the instance, not sure why it doesn't actual release the memory. ...
TL;DR > echo (new ClassName())->propertyName; Will call the __destruct(), run its code and AFTER THAT successfully retrieve its "propertyName ...
It is well known that vim's netrw extension allows one to manage files directly inside vim. For example to copy a file using the following key strokes ...
Version stein openstack, one image had set the property with hw_scsi_model='virtio-scsi', now I have to unset it, but can't work. While set the val ...
I have this posts collection: I would like to be able to delete all likes by a specific user across all posts. I have tried using the $unset operat ...
In bash shell for variables: Because set command is defined to return error if variable is not set, last line returns error: line 6: var: unbou ...
I have one array which is mixedtype both associative and indexed based elements, i want to remove all the values and keys from the array and make that ...
I have a database in MongoDB where there are entries with the following structure image I am using a script in Python that I use to retrive informati ...
I have two arrays array1 and array2 I want to compare meta from array1 to meta from array2 and if matches I want to remove that object and return t ...
this is my first time on stackoverflow so sorry if I do something wrong. I would also appreciate your advice. I have the next Array: And I want de ...
I'm trying to remove stdClass property by reference. Because I don't know how deeply the property is nested, a reference is made in the loop. But the ...
I have this array here let's call it $_products, my goal is to remove the array based on the key value of "activationdate" if it's greater than today' ...
I'm a jr developer working on a wordpress plugin that uses an API to retrieve data for the site. Within the API call are latitude and longitude values ...
I'm trying to find the way to make this work. Documentation of the MongoDbDriver is pretty poor, and just a couple of "solutions" found by google. I ...
I just wanted to confirm here since I've only tested in dash shell, but do loop variables collide with variables in the outer scope in shell scripts i ...