大约有 40,000 项符合查询结果(耗时:0.0333秒) [XML]

https://stackoverflow.com/ques... 

getenv() vs. $_ENV in PHP

... According to the php documentation about getenv, they are exactly the same, except that getenv will look for the variable in a case-insensitive manner. Most of the time it probably doesn't matter, but one of the comments on the documentation...
https://stackoverflow.com/ques... 

define() vs. const

In PHP, when do you use 11 Answers 11 ...
https://stackoverflow.com/ques... 

How do I pass parameters into a PHP script through a webpage?

I am calling a PHP script whenever a webpage loads. However, there is a parameter that the PHP script needs to run (which I normally pass through the command line when I am testing the script). ...
https://stackoverflow.com/ques... 

How do I get a PHP class constructor to call its parent's parent's constructor?

I need to have a class constructor in PHP call its parent's parent's (grandparent?) constructor without calling the parent constructor. ...
https://stackoverflow.com/ques... 

How to use phpexcel to read data and insert into database?

I have a php application where I want to read data from excel, Insert into database and then generate pdf reports for specific users. I searched a lot but nothing specific given about both things. ...
https://stackoverflow.com/ques... 

Using braces with dynamic variable names in PHP

... Overview In PHP, you can just put an extra $ in front of a variable to make it a dynamic variable : $$variableName = $value; While I wouldn't recommend it, you could even chain this behavior : $$$$$$$$DoNotTryThisAtHomeKids = $value; Y...
https://stackoverflow.com/ques... 

Accurate way to measure execution times of php scripts

I want to know how many milliseconds a PHP for-loop takes to execute. 14 Answers 14 ...
https://stackoverflow.com/ques... 

How to solve PHP error 'Notice: Array to string conversion in…'

I have a PHP file that tries to echo a $_POST and I get an error, here is the code: 5 Answers ...
https://stackoverflow.com/ques... 

How do I expire a PHP session after 30 minutes?

...y registered session. And that is cost-intensive. Furthermore, when using PHP's default session.save_handler files, the session data is stored in files in a path specified in session.save_path. With that session handler, the age of the session data is calculated on the file's last modification date...
https://stackoverflow.com/ques... 

Are PHP include paths relative to the file or the calling code?

I'm having trouble understanding the ruleset regarding PHP relative include paths. If I run file A.PHP- and file A.PHP includes file B.PHP which includes file C.PHP, should the relative path to C.PHP be in relation to the location of B.PHP, or to the location of A.PHP? That is, does it matter whic...