How to filter an associative array comparing keys with values in an indexed array?
With array_intersect_key and array_flip: var_dump(array_intersect_key($my_array, array_flip($allowed))); array(1) { [“foo”]=> int(1) }
key
Is there any way to use a numeric type as an object key?
No, this is not possible. The key will always be converted to a string. See Property Accessor docs Property names must be strings. This means that non-string objects cannot be used as keys in the object. Any non-string object, including a number, is typecasted into a string via the toString method. > var foo = … Read more
Android EditText delete(backspace) key event
NOTE: onKeyListener doesn’t work for soft keyboards. You can set OnKeyListener for you editText so you can detect any key press EDIT: A common mistake we are checking KeyEvent.KEYCODE_BACK for backspace, but really it is KeyEvent.KEYCODE_DEL (Really that name is very confusing! ) editText.setOnKeyListener(new OnKeyListener() { @Override public boolean onKey(View v, int keyCode, KeyEvent event) … Read more
SSL: error:0B080074:x509 certificate routines:X509_check_private_key:key values mismatch
Once you have established that they don’t match, you still have a problem — what to do about it. Often, the certificate may merely be assembled incorrectly. When a CA signs your certificate, they send you a block that looks something like —–BEGIN CERTIFICATE—– MIIAA-and-a-buncha-nonsense-that-is-your-certificate -and-a-buncha-nonsense-that-is-your-certificate-and- a-buncha-nonsense-that-is-your-certificate-and-a-bun cha-nonsense-that-is-your-certificate-and-a-buncha-n onsense-that-is-your-certificate-AA+ —–END CERTIFICATE—– they’ll also send you … Read more
get all keys set in memcached
Found a way, thanks to the link here (with the original google group discussion here) First, Telnet to your server: telnet 127.0.0.1 11211 Next, list the items to get the slab ids: stats items STAT items:3:number 1 STAT items:3:age 498 STAT items:22:number 1 STAT items:22:age 498 END The first number after ‘items’ is the slab … Read more
How do you test a public/private DSA keypair? [closed]
I found a way that seems to work better for me: ssh-keygen -y -f <private key file> That command will output the public key for the given private key, so then just compare the output to each *.pub file.
Accessing dict_keys element by index in Python3
Call list() on the dictionary instead: keys = list(test) In Python 3, the dict.keys() method returns a dictionary view object, which acts as a set. Iterating over the dictionary directly also yields keys, so turning a dictionary into a list results in a list of all the keys: >>> test = {‘foo’: ‘bar’, ‘hello’: ‘world’} … Read more
Get HTML5 localStorage keys
for (var key in localStorage){ console.log(key) } EDIT: this answer is getting a lot of upvotes, so I guess it’s a common question. I feel like I owe it to anyone who might stumble on my answer and think that it’s “right” just because it was accepted to make an update. Truth is, the example … Read more
Surrogate vs. natural/business keys [closed]
Just a few reasons for using surrogate keys: Stability: Changing a key because of a business or natural need will negatively affect related tables. Surrogate keys rarely, if ever, need to be changed because there is no meaning tied to the value. Convention: Allows you to have a standardized Primary Key column naming convention rather … Read more
How can I find the keys of an object?
There is function in modern JavaScript (ECMAScript 5) called Object.keys performing this operation: var obj = { “a” : 1, “b” : 2, “c” : 3}; alert(Object.keys(obj)); // will output [“a”, “b”, “c”] Compatibility details can be found here. On the Mozilla site there is also a snippet for backward compatibility: if(!Object.keys) Object.keys = function(o){ … Read more