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Reference: What is variable scope, which variables are accessible from where and what are “undefined
...hat of superglobals, including the commonly used $_POST, $_GET, $_SESSION, etc. These variables are arrays that are always available, in any scope, without a global declaration.
For example, this function will print out the name of the user running the PHP script. The variable is available to the f...
getenv() vs. $_ENV in PHP
...or the getenv function, this is because there are three ways that PHP can fetch the environment variable:
Via sapi_getenv (e.g. if it's getting the environment variable from Apache)
If on Windows, from GetEnvironmentVariableA.
If on non-Windows, from the getenv function provided by libc.
As far ...
为什么你有10年经验，但成不了专家？ - 杂谈 - 清泛网 - 专注C/C++及内核技术
...的教材、任务，如何开始呢？
1、避免自动完成
自检问题：你今天的工作，是有意识地刻意提升，还是在自动完成？
比如一开始学习驾驶的时候，你会去刻意地记忆如何换挡、如何刹车，当遇到情况需要刹车的时候，你就...
ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C++内核技术
...底层传输之上提供完全相同的行为。 这种方法存在两个问题： 一，在特定的传输之上建立类TCP的封装实际上使得传输成为多余的了。如果这种方法的行为类似于TCP，那么为什么一开始就不用TCP呢？（性能特性排除在这个规...
How can I parse a JSON file with PHP? [duplicate]
...f an object. And with that array, you can do whatever you want, like loops etc.
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Dynamically generating a QR code with PHP [closed]
...he Google API?. I mean limitations as: amount of requests in a given time, etc.
– Lobo
Sep 27 '12 at 15:11
11
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Path of assets in CSS files in Symfony 2
I have a CSS file with some paths in it (for images, fonts, etc.. url(..) ).
6 Answers
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PHP memory profiling
...libjudydebian1
sudo pecl install memprof
echo "extension=memprof.so" > /etc/php5/mods-available/memprof.ini
sudo php5enmod memprof
service apache2 restart
And then in my code:
<?php
memprof_enable();
// do your stuff
memprof_dump_callgrind(fopen("/tmp/callgrind.out", "w"));
Finally open t...
The character encoding of the HTML document was not declared
...ly, because it isn't valid HTML (i.e. it isn't contained in an 'HTML' tag, etc.).
Your insert.php needs to output the necessary HTML, and insert the form data in there somewhere.
For example:
<?php
$title = $_POST["title"];
$price = $_POST["price"];
echo '<html xmlns="http://www....
Getting the name of a child class in the parent class (static context)
...lass
{
return new static();
}
public static function getClass() // Get static class
{
return static::class;
}
public function getStaticClass() // Non-static function to get static class
{
return static::class;
}
}
class Child extends Base
{
...