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New self vs. new static
...ic $name = static::class;
}
$Foo = new Foo;
echo $Foo->name; // Fatal error
Using self::
class Foo {
public $name = self::class;
}
$Foo = new Foo;
echo $Foo->name; // Foo
Please note that the Fatal error comment in the code i made doesn't indicate where the error happened, the...
Chmod recursively
I have an archive, which is archived by someone else, and I want to automatically, after I download it, to change a branch of the file system within the extracted files to gain read access. (I can't change how archive is created).
...
Why does calling a function in the Node.js REPL with )( work?
... to be a Node REPL bug, putting these two lines in a .js will cause syntax error.
function hi() { console.log("Hello, World!"); }
hi)(
Error:
SyntaxError: Unexpected token )
at Module._compile (module.js:439:25)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (modu...
How can I list ALL DNS records?
... specific nameserver: dig -x example.com
#!/bin/bash
set -e; set -u
COMMON_SUBDOMAINS="www mail mx a.mx smtp pop imap blog en ftp ssh login"
EXTENDED=""
while :; do case "$1" in
--) shift; break ;;
-x) EXTENDED=y; shift ;;
-s) NS="$2"; shift 2 ;;
*) break ;;
esac; done
DOM="$1"; shift
TYPE...
How do I insert datetime value into a SQLite database?
...It seems to be sucsessful but when I try to retrieve the value there is an error:
6 Answers
...
How to reset db in Django? I get a command 'reset' not found error
...individual apps like manage.py reset <appname> did. It results in an error: CommandError: Command doesn't accept any arguments
– Andre
May 6 '13 at 19:20
5
...
Any gotchas using unicode_literals in Python 2.6?
..."one.py", line 5, in <module>
print name + two.name
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 4: ordinal not in range(128)
In this example, two.name is an utf-8 encoded string (not unicode) since it did not import unicode_literals, and one.name is an unicode st...
Implements vs extends: When to use? What's the difference?
Please explain in an easy to understand language or a link to some article.
18 Answers
...
Red black tree over avl tree
...take two.
– Daniel
Jun 13 '17 at 22:05
3
This should be updated per Ben Pfaff's 2003 analysis of ...
Receive JSON POST with PHP
...e.
function isValidJSON($str) {
json_decode($str);
return json_last_error() == JSON_ERROR_NONE;
}
$json_params = file_get_contents("php://input");
if (strlen($json_params) > 0 && isValidJSON($json_params))
$decoded_params = json_decode($json_params);
Edit: Note that removing ...