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Creating default object from empty value in PHP?
...y have E_STRICT warnings enabled in error_reporting for PHP versions <= 5.3.x, or simply have error_reporting set to at least E_WARNING with PHP versions >= 5.4. That error is triggered when $res is NULL or not yet initialized:
$res = NULL;
$res->success = false; // Warning: Creating defau...
How to Flatten a Multidimensional Array?
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As of PHP 5.3 the shortest solution seems to be array_walk_recursive() with the new closures syntax:
function flatten(array $array) {
$return = array();
array_walk_recursive($array, function($a) use (&$return) { $return[] ...
PHP - Extracting a property from an array of objects
... You could use a lambda function but not many people will be running PHP 5.3
– Greg
Jul 13 '09 at 12:22
27
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PHP: How to use array_filter() to filter array keys?
...a search engine you maybe where looking for something like this (PHP >= 5.3):
$array = ['apple' => 'red', 'pear' => 'green'];
reset($array); // Unimportant here, but make sure your array is reset
$apples = array_filter($array, function($color) use ($&array) {
$key = key($array);
n...
Populating a database in a Laravel migration file
... A small note; the link to database seeding is now: laravel.com/docs/5.3/seeding
– magikMaker
Oct 18 '16 at 0:10
add a comment
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How to identify server IP address in PHP
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If you are using PHP version 5.3 or higher you can do the following:
$host= gethostname();
$ip = gethostbyname($host);
This works well when you are running a stand-alone script, not running through the web server.
...
CentOS 6.4下Squid代理服务器的安装与配置 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...作系统：CentOS release 6.4 (Final)
Squid版本：squid-3.1.10-20.el6_5.3.x86_64
SELINUX=disabled
HTTP Service: stoped
三、安装Squid服务
3.1 检查squid软件是否安装
# rpm -qa|grep squid
3.2 如果未安装，则使用yum 方式安装
# yum -y install squid
3.3 设置开机...
How to schedule a function to run every hour on Flask?
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You can use BackgroundScheduler() from APScheduler package (v3.5.3):
import time
import atexit
from apscheduler.schedulers.background import BackgroundScheduler
def print_date_time():
print(time.strftime("%A, %d. %B %Y %I:%M:%S %p"))
scheduler = BackgroundScheduler()
scheduler....
Is there any difference between __DIR__ and dirname(__FILE__) in PHP?
... there are at least two differences :
__DIR__ only exists with PHP >= 5.3
which is why dirname(__FILE__) is more widely used
__DIR__ is evaluated at compile-time, while dirname(__FILE__) means a function-call and is evaluated at execution-time
so, __DIR__ is (or, should be) faster.
As,...
What is the difference between is_a and instanceof?
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Update
As of PHP 5.3.9, the functionality of is_a() has changed. The original answer below states that is_a() must accept an Object as the first argument, but PHP versions >= 5.3.9 now accept an optional third boolean argument $allow_strin...