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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...
Insert new item in array on any position in PHP
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That function does not save the order in array.
– Daniel Petrovaliev
May 3 '16 at 11:44
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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...
Why does the PHP json_encode function convert UTF-8 strings to hexadecimal entities?
I have a PHP script that deals with a wide variety of languages. Unfortunately, whenever I try to use json_encode , any Unicode output is converted to hexadecimal entities. Is this the expected behavior? Is there any way to convert the output to UTF-8 characters?
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HTTP authentication logout via PHP
...lso works (a "disconnect" link to this URL) instead of an http redirect in PHP... any downside to that?
– moala
Mar 21 '12 at 13:40
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string sanitizer for filename
I'm looking for a php function that will sanitize a string and make it ready to use for a filename. Anyone know of a handy one?
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'AND' vs '&&' as operator
...gher precedence than and. The addition of parentheses to show the implicit order makes this clearer:
($truthiness = $this_one) and $that
If you used && instead of and in the first code example, it would work as expected and be false.
As discussed in the comments below, this also works to...
What does __FILE__ mean in Ruby?
...LE__ is the full path (which in my opinion is preferable). This is why, in order to make your paths portable in Ruby, you really need to use this:
File.expand_path(File.dirname(__FILE__) + "relative/path/to/file")
I should note that in Ruby 1.9.1 __FILE__ contains the full path to the file, the a...
How to get first 5 characters from string [duplicate]
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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PHP - Get bool to echo false when false
...rnate development is so so so much cleaner & stronger than even modest PHP systems. I could find plenty of people who were confused.. stackoverflow.com/questions/9042002/… but I couldn't find any reference as to a real reason for this design "feature".
– Thomas W
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