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Get JSON object from URL
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$json = file_get_contents('url_here');
$obj = json_decode($json);
echo $obj->access_token;
For this to work, file_get_contents requires that allow_url_fopen is enabled. This can be done at runtime by including:
ini_set("allow_url_f...
Java how to replace 2 or more spaces with single space in string and delete leading and trailing spa
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Try this:
String after = before.trim().replaceAll(" +", " ");
See also
String.trim()
Returns a copy of the string, with leading and trailing whitespace omitted.
regular-expressions.info/Repetition
No trim() regex
It's also possible to do this with just one re...
Why em instead of px?
...something else like the size of the browser window or the font size.
Like all the other absolute units, px units don't scale according to the width of the browser window. Thus, if your entire page design uses absolute units such as px rather than %, it won't adapt to the width of the browser. This...
How to write file if parent folder doesn't exist?
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If the whole path already exists, mkdirp is a noop. Otherwise it creates all missing directories for you.
This module does what you want: https://npmjs.org/package/writefile . Got it when googling for "writefile mkdirp". This module returns a promise instead of taking a callback, so be sure to r...
Storing SHA1 hash values in MySQL
...INARY(20) and CHAR(40).
CREATE TABLE `binary` (
`id` int unsigned auto_increment primary key,
`password` binary(20) not null
);
CREATE TABLE `char` (
`id` int unsigned auto_increment primary key,
`password` char(40) not null
);
With million of records binary(20) takes 44.56M, whil...
difference between primary key and unique key
...d on multiple columns, e.g. Primary key (CustomerID, ProductID). This is called composite primary key. This is to clarify the first point, as it might be take as it is (read one key => one column ) by new comer to sql : )
– ken
Apr 10 '14 at 13:53
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Difference between “process.stdout.write” and “console.log” in node.js?
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console.log() calls process.stdout.write with formatted output. See format() in console.js for the implementation.
Currently (v0.10.ish):
Console.prototype.log = function() {
this._stdout.write(util.format.apply(this, arguments) + '\n')...
Read each line of txt file to new array element
...sing, this should do what you're looking for
$lines = file($filename, FILE_IGNORE_NEW_LINES);
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Adding Only Untracked Files
...where I've interactively added some updates to the index and I want to add all of the untracked files to that index before I commit.
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python pandas dataframe to dictionary
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See the docs for to_dict. You can use it like this:
df.set_index('id').to_dict()
And if you have only one column, to avoid the column name is also a level in the dict (actually, in this case you use the Series.to_dict()):
df.set_index('id')...