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The 3 different equals
...fer the one or the other and performance must not be taken into account at all.
– lucaferrario
Feb 18 '16 at 15:40
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Get the new record primary key ID from MySQL insert query?
...in table2. Is concurrency taken care of or will I have to do it in PHP manually, for incoming database write requests?
– bad_keypoints
Sep 16 '13 at 7:46
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How does facebook, gmail send the real time notification?
...JAX, it'll take a lot of the cross-compability problems away. In terms of PHP, you could simply poll an event log database table in your PHP script, and only return to the client when something happens? There are, I expect, many ways of implementing this.
Implementing:
Server Side:
There appear ...
How do I get a YouTube video thumbnail from the YouTube API?
...mg.youtube.com/vi/<insert-youtube-video-id-here>/maxresdefault.jpg
All of the above URLs are available over HTTP too. Additionally, the slightly shorter hostname i3.ytimg.com works in place of img.youtube.com in the example URLs above.
Alternatively, you can use the YouTube Data API (v3) to...
Get random item from array [duplicate]
...y pick youtube video from playlist on page load and is working great: <?php $videos = Array(0,1,2,3); echo $videos[array_rand($videos)]; ?>
– ioTus
Jul 3 '14 at 6:07
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PHP reindex array? [duplicate]
...lues does the job :
$myArray = array_values($myArray);
Also some other php function do not preserve the keys, i.e. reset the index.
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date(): It is not safe to rely on the system\'s timezone settings.解决...
...成的,本文提供了3种方法来解决这个问题。
实际上，从PHP 5.1.0开始当对使用date()等函数时，如果timezone设置不正确，在每一次调用时间函数时，都会产生E_NOTICE 或者 E_WARNING 信息，而又在php中，date.timezone这个选项，默认情况下是...
php中三个等于号是什么意思？=== - 更多技术 - 清泛网 - 专注C/C++及内核技术
php中三个等于号是什么意思？===1、=：赋值，在逻辑运算时也有效；2、==：等于运算，但是不比较值的类型；3、===：完全等于运算，不仅比较值，而且还比较值的类型，只有两...1、=：赋值，在逻辑运算时也有效；
2、==：等于...
php类调用自己的函数 - 更多技术 - 清泛网 - 专注C/C++及内核技术
php类调用自己的函数直接func()会报错，函数未定义。成员函数：$this->func();静态函数：self::func();或类名::func();直接func()会报错，函数未定义。
成员函数：
$this->func();
静态函数：
self::func();
或
类名::func();php 调用 自己函数
phpcms 启用手机门户（自动判断手机浏览器） - 更多技术 - 清泛网 - 专注C/...
phpcms 启用手机门户（自动判断手机浏览器）1、确定一个域名作为你手机wap站点的访问域名，例如：http: m.xxx.com。接下来在域名管理系统中简析这个域名到你的服务器地址。2、修改 ca...1、确定一个域名作为你手机wap站点的访问...