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How do I close a connection early?

I'm attempting to do an AJAX call (via JQuery) that will initiate a fairly long process. I'd like the script to simply send a response indicating that the process has started, but JQuery won't return the response until the PHP script is done running. ...
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How does this checkbox recaptcha work and how can I use it?

... Excerpt from the email: We expect to move all existing reCAPTCHA sites to the new API in 2015. – Timothy Zorn Sep 11 '14 at 3:29 1 ...
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How to pop an alert message box using PHP?

... send to the client's browser. PHP is a server-side language. This is what allows it do things like INSERT something into a database on the server. But an alert is rendered by the browser of the client. You would have to work through javascript to get an alert. ...
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How to allow to accept only image files?

...t is very sketchy on mobiles (as of 2015) and by some reports this may actually prevent some mobile browsers from uploading anything at all, so be sure to test your target platforms well. For detailed browser support, see http://caniuse.com/#feat=input-file-accept ...
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index.php not loading by default

I have just installed CentOS, Apache and PHP. When I visit my site http://example.com/myapp/ , it says "forbidden". By default it's not loading the index.php file. ...
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What is mod_php?

... mod_php means PHP, as an Apache module. Basically, when loading mod_php as an Apache module, it allows Apache to interpret PHP files (those are interpreted by mod_php). EDIT : There are (at least) two ways of running PHP, when working with Apache : Using CGI : a PHP...
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How does the SQL injection from the “Bobby Tables” XKCD comic work?

...t'); DROP TABLE STUDENTS; --) and the last name textbox LName.Text (let's call it Derper) are concatenated with the rest of the query, the result is now actually two queries separated by the statement terminator (semicolon). The second query has been injected into the first. When the code executes...
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Removing X-Powered-By

...pose_php = off Decides whether PHP may expose the fact that it is installed on the server (e.g. by adding its signature to the Web server header). It is no security threat in any way, but it makes it possible to determine whether you use PHP on your server or not. There is no direct security...
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Solution for “Fatal error: Maximum function nesting level of '100' reached, aborting!” in PHP

I have made a function that finds all the URLs within an html file and repeats the same process for each html content linked to the discovered URLs. The function is recursive and can go on endlessly. However, I have put a limit on the recursion by setting a global variable which causes the recursion...
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apc vs eaccelerator vs xcache

Im doing research on which one of these to use and I can't really find one that stands out. Eaccelerator is faster than APC , but APC is better maintained. Xcache is faster but the others have easier syntax. ...