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What are Long-Polling, Websockets, Server-Sent Events (SSE) and Comet?

... a lot about websockets (with socket.io [a node.js library]) but why not PHP ? You can use PHP with WebSockets, check out Ratchet. share | improve this answer | follow ...
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Is there a point to minifying PHP?

I know you can minify PHP, but I'm wondering if there is any point. PHP is an interpreted language so will run a little slower than a compiled language. My question is: would clients see a visible speed improvement in page loads and such if I were to minify my PHP? ...
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How do I see the extensions loaded by PHP?

It's got to be somewhere in the phpinfo() dump, but I just don't know where. Is it supposed to be under the "Additional Modules" section? Somewhere else? I'm trying to figure out why some extensions don't appear to be loaded, but I don't even know where I should be looking. ...
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C++STL容器使用经验总结 - C/C++ - 清泛网 - 专注C/C++及内核技术

...是为了避免不必要的拷贝。使拷贝动作高效并且防止剥离问题发生的一个简单办法是使容器包含指针而不是对象。 第4条:调用empty而不是检查size()是否为0。   理由很简单:empty对所有的标准容器都是常数时间操作,而对...
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Maximum execution time in phpMyadmin

When I try to execute (some) queries in phpMyadmin I get this error 12 Answers 12 ...
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Showing all errors and warnings [duplicate]

... Display errors could be turned off in the php.ini or your Apache configuration file. You can turn it on in the script: error_reporting(E_ALL); ini_set('display_errors', '1'); You should see the same messages in the PHP error log. ...
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Multiple Updates in MySQL

...ice for dynamic updating too. For example, I used that solution in loop in php: $commandTxt = 'UPDATE operations SET chunk_finished = CASE id '; foreach ($blockOperationChecked as $operationID => $operationChecked) $commandTxt .= " WHEN $operationID THEN $ope...
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Asynchronous shell exec in PHP

I've got a PHP script that needs to invoke a shell script but doesn't care at all about the output. The shell script makes a number of SOAP calls and is slow to complete, so I don't want to slow down the PHP request while it waits for a reply. In fact, the PHP request should be able to exit without ...
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Are unused CSS images downloaded?

...e="text/css"> .nonexistent { background: url('index.php?foo'); } </style> </head> <body> <?php if(isset($_GET['foo'])) { file_put_contents('test.txt', $_SERVER['HTTP_USER_AGENT']); } ?> </body> </html> If te...
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Fatal error: Maximum execution time of 300 seconds exceeded

I keep getting this PHP error: 18 Answers 18 ...