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How to destroy an object?
...It will stay there, however if you unset the object and your script pushes PHP to the memory limits the objects not needed will be garbage collected. I would go with unset() (as opposed to setting it to null) as it seems to have better performance (not tested but documented on one of the comments fr...
PHP code to convert a MySQL query to CSV [closed]
What is the most efficient way to convert a MySQL query to CSV in PHP please?
6 Answers
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比尔盖茨“未来生活预言”的科技豪宅（图） - 资讯 - 清泛网 - 专注C/C++及内核技术
...无论你走到哪个房间，音乐都会跟随着你，因为墙纸背后安装了隐形的扬声器。
-绿色生态建筑的典范 -
世外桃源2.0完全与周边环境融为一体，因此房屋的温控系统非常节能。
-墙上的相框其实是触摸屏 -
整个房屋...
Any way to break if statement in PHP?
Is there any command in PHP to stop executing the current or parent if statement, same as break or break(1) for switch / loop . For example
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How to loop through an associative array and get the key? [duplicate]
...do:
foreach ($arr as $key => $value) {
echo $key;
}
As described in PHP docs.
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What's the difference between :: (double colon) and -> (arrow) in PHP?
There are two distinct ways to access methods in PHP, but what's the difference?
6 Answers
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How to get file_get_contents() to work with HTTPS?
...he following script to see if there is an https wrapper available for your php scripts.
$w = stream_get_wrappers();
echo 'openssl: ', extension_loaded ('openssl') ? 'yes':'no', "\n";
echo 'http wrapper: ', in_array('http', $w) ? 'yes':'no', "\n";
echo 'https wrapper: ', in_array('https', $w) ? 'y...
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...转载自：https://mc.dfrobot.com.cn/thread-308376-1-1.html
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Is there a use-case for singletons with database access in PHP?
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Singletons have very little - if not to say no - use in PHP.
In languages where objects live in shared memory, Singletons can be used to keep memory usage low. Instead of creating two objects, you reference an existing instance from the globally shared application memory. In PHP ...
SET NAMES utf8 in MySQL?
I often see something similar to this below in PHP scripts using MySQL
8 Answers
8
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