大约有 16,000 项符合查询结果(耗时:0.0307秒) [XML]

https://stackoverflow.com/ques... 

What is the ideal data type to use when storing latitude / longitude in a MySQL database?

...he surface of the earth represented by lat/long. Their distance functions, etc, are only useful on cartesian, planar, coordinates. – O. Jones Feb 11 '12 at 0:17 add a comment ...
https://stackoverflow.com/ques... 

PHP method chaining?

I am using PHP 5 and I've heard of a new featured in the object-oriented approach, called 'method chaining'. What is it exactly? How do I implement it? ...
https://stackoverflow.com/ques... 

“Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP

I'm running a PHP script and continue to receive errors like: 28 Answers 28 ...
https://stackoverflow.com/ques... 

PHP PDO: charset, set names?

...ring like: "mysql:host=$host;dbname=$db;charset=utf8" HOWEVER, prior to PHP 5.3.6, the charset option was ignored. If you're running an older version of PHP, you must do it like this: $dbh = new PDO("mysql:$connstr", $user, $password); $dbh->exec("set names utf8"); ...
https://stackoverflow.com/ques... 

continue processing php after sending http response

... Tip: I started using PHP-FPM, so I had to add fastcgi_finish_request() at the end – vcampitelli Sep 16 '15 at 13:18 ...
https://stackoverflow.com/ques... 

AngularJS HTTP post to PHP and undefined

...u are not changing your data value to pass an appropriate query string, so PHP is not populating $_POST as you expect. My suggestion would be to just use the default angularjs setting of application/json as header, read the raw input in PHP, and then deserialize the JSON. That can be achieved in P...
https://stackoverflow.com/ques... 

Is PHP's count() function O(1) or O(n) for arrays?

Does count() really count the all the elements of a PHP array, or is this value cached somewhere and just gets retrieved? ...
https://stackoverflow.com/ques... 

jQuery Ajax POST example with PHP

... $inputs.prop("disabled", true); // Fire off the request to /form.php request = $.ajax({ url: "/form.php", type: "post", data: serializedData }); // Callback handler that will be called on success request.done(function (response, textStatus, jqXHR){ ...
https://www.tsingfun.com/it/tech/2000.html 

Java内存泄露原因详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...果不可到达,则就将其回收,这样也可以消除引用循环的问题。在Java语言中,判断一个内存空间是否符合垃圾收集标准有两个:一个是给对象赋予了空值null,以下再没有调用过,另一个是给对象赋予了新值,这样重新分配了内...
https://stackoverflow.com/ques... 

Detecting request type in PHP (GET, POST, PUT or DELETE)

How can I detect which request type was used (GET, POST, PUT or DELETE) in PHP? 13 Answers ...