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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 ...
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请停下来重新想下 你究竟为何创业? - 资讯 - 清泛网 - 专注C/C++及内核技术

...这种成功的概念有多么的狭隘。 首先,请仔细思考这个问题:你为何在这里? “在这里,你可以接触到最顶尖的企业与最火的创业公司:除了是创业公司,世界顶尖企业的高管们也会出席这场关于直击未来的盛会,他们将与...
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isset() and empty() - what to use

... $var; (a variable declared, but without a value in a class) From http://php.net/manual/en/function.empty.php As mentioned in the comments the lack of warning is also important with empty() PHP Manual says empty() is the opposite of (boolean) var, except that no warning is generated when...
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Resumable downloads when using PHP to send the file?

We are using a PHP scripting for tunnelling file downloads, since we don't want to expose the absolute path of downloadable file: ...
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Error 1103: Unable to complete the given request · App Inventor 2 中文网

...dezvous.appinventor.mit 不稳定导致的部分网络不能访问导致的问题。 基于”命运掌握在自己手里”的原则,我们损失了少许兼容性(iOS版AI伴侣目前连接不了),也必须将通信服务器国内本地化。 我们已于今天升级了通信服务器,...
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What column type/length should I use for storing a Bcrypt hashed password in a Database?

...40 bytes: 1 + 16 + 23 You can read more at the link above, or examine my PHP implementation, also on GitHub. share | improve this answer | follow | ...
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HTTP authentication logout via PHP

...lso works (a "disconnect" link to this URL) instead of an http redirect in PHP... any downside to that? – moala Mar 21 '12 at 13:40 4 ...
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Convert PHP closing tag into comment

One of the lines in my script contains a PHP closing tag inside a string. Under normal operation this does not cause a problem, but I need to comment out the line. ...
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Hashing a string with Sha256

...ich you want to do. (Presumably you want to do whichever one your friend's PHP code is doing.) For ASCII text, Encoding.UTF8 will definitely be suitable. If you're aiming for perfect compatibility with your friend's code, even on non-ASCII inputs, you'd better try a few test cases with non-ASCII ch...
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Creating .pem file for APNS?

...ed the above steps and now its working.I have kept the certificate and the php script on my local web server (Xampp). I am able to get the device token , and i am using it in the php script. The php script is able to connect and send payload data. But still then i am not able to get the PUSH Notifi...