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位置传感器经纬度为0的问题 - 用户反馈 - 清泛IT社区，为创新赋能！
...是0,0是为什么
清泛:
[图片]
清泛:
看看是不是权限问题
Pursuer丶:
是这样的
Pursuer丶:
他刚进来的时候是好的 然后跳到第二个屏幕 再返回第一个 就变0,0了
Pursuer丶:
一开始初始化的时候传感器经纬度 没问题
Flat file databases [closed]
...at are the best practices around creating flat file database structures in PHP?
11 Answers
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No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin '…' is therefor
...ttp://wordicious.com. (Maybe place the target URL relatively, like '/login.php', without the domain).
On a more general note:
If the problem is not a typo like the one of this question seems to be, the solution would be to add the Access-Control-Allow-Origin to the target domain. To add it, depends...
Passing an Array as Arguments, not an Array, in PHP
I seem to remember that in PHP there is a way to pass an array as a list of arguments for a function, dereferencing the array into the standard func($arg1, $arg2) manner. But now I'm lost on how to do it. I recall the manner of passing by reference, how to "glob" incoming parameters ... but not ...
What is the best collation to use for MySQL with PHP? [closed]
...gs should be the same, such as MySQL, Apache, the HTML and anything inside PHP.
11 Answers
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How to check for null in Twig?
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In addition, unlike the PHP isset() function, is defined will return true if a variable is defined and it's value is null.
– Pavel Petrov
Sep 19 '17 at 7:59
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“Adobe Flash Player因过期而遭到阻止”的内幕起因和解决办法 - 更多技术 ...
...情况。随后我尝试电脑里第二浏览器maxthon时并未出现此问题，此时，我大概猜到是怎么回事了……
◆起因
大家先听我慢慢道来，这跟前不久我们跟踪报道的Hacking Team（以下简称HT）400GB内部资料泄露事件有莫大联系。如果说...
推荐系统算法初探 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...单，而且很多时候推荐也是很准确的。然而它也存在一些问题：
依赖于准确的用户评分；
在计算的过程中，那些大热的物品会有更大的几率被推荐给用户；
冷启动问题。当有一名新用户或者新物品进入系统时，推荐将无从依...
Mixing a PHP variable with a string literal
...ake a look to the Variable parsing - Complex (curly) syntax section of the PHP manual.
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Can an Option in a Select tag carry multiple values?
... options in a HTML form:
(the data will be collected and processed using PHP)
15 Answers
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