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How to initialize static variables
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PHP can't parse non-trivial expressions in initializers.
I prefer to work around this by adding code right after definition of the class:
class Foo {
static $bar;
}
Foo::$bar = array(…);
or
class Foo {
private stat...
Sort array of objects by object fields
... second argument. Here are some examples:
Using anonymous functions (from PHP 5.3)
usort($your_data, function($a, $b) {return strcmp($a->name, $b->name);});
From inside a class
usort($your_data, array($this, "cmp")); // "cmp" should be a method in the class
Using arrow functions (from...
PHP & mySQL: Year 2038 Bug: What is it? How to solve it?
...fficient - a long long type in GNU C and POSIX/SuS, or sprintf('%u'...) in PHP or the BCmath extension.
What are some potentially breaking use cases even though we're not yet in 2038?
So a MySQL DATETIME has a range of 1000-9999, but TIMESTAMP only has a range of 1970-2038. If your system stores...
jQuery Scroll To bottom of the page
... answered Jul 10 '15 at 13:35
f123f123
36422 silver badges88 bronze badges
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How to set default value to the input[type=“date”] [duplicate]
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Ah thanks for this! I am defaulting to today's date with php, and I didn't realize that my problem was just the formatting of the date. I was doing <input type="date" value="<?php echo date('m/d/Y'); ?>" name="date" id="date" title="Pick a date" /> And a variety ...
Remove all files except some from a directory
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rm !(textfile.txt|backup.tar.gz|script.php|database.sql|info.txt)
The extglob (Extended Pattern Matching) needs to be enabled in BASH (if it's not enabled):
shopt -s extglob
share
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How can I brew link a specific version?
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If you have installed, for example, php 5.4 it could be switched in the following way to php 5.5:
$ php --version
PHP 5.4.32 (cli) (built: Aug 26 2014 15:14:01)
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2014 Zend Technologie...
How to [recursively] Zip a directory in PHP?
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USAGE: thisfile.php?dir=./path/to/folder (After zipping, it starts download too:)
<?php
$exclude_some_files=
array(
'mainfolder/folder1/filename.php',
'mainfolder/folder5/otherfile.php'
);
//***************built from htt...
Generic TryParse
... it's simply a matter of calling thusly:
var value = TryParse<int>("123", int.TryParse);
var value2 = TryParse<decimal>("123.123", decimal.TryParse);
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NPM/Bower/Composer - differences?
... the "browser" environment.
composer is a dependency manager that targets php projects. If you are doing something with symfony (or plain old php), this is likely the way to go
Summing it up:
doing node? you do npm
doing php? try composer
front-end javascript? try bower
And yes, the "json" fil...