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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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Performance of FOR vs FOREACH in PHP

First of all, I understand in 90% of applications the performance difference is completely irrelevant, but I just need to know which is the faster construct. That and... ...
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Difference between “include” and “require” in php

...ill halt the script whereas include only emits a warning (E_WARNING) which allows the script to continue. See @efritz's answer for an example share | improve this answer | ...
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PHP, get file name without file extension

... No need for all that. Check out pathinfo(), it gives you all the components of your path. Example from the manual: $path_parts = pathinfo('/www/htdocs/index.html'); echo $path_parts['dirname'], "\n"; echo $path_parts['basename'], "\n"...
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How to “log in” to a website using Python's Requests module?

...name and password, so we go to the login page say http://example.com/login.php now and view it's source code and search for the action URL it will be in form tag something like <form name="loginform" method="post" action="userinfo.php"> now take userinfo.php to make absolute URL which wil...
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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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What is the difference between client-side and server-side programming?

...php echo 42; ?>; alert(baz); </script> Step 1, PHP executes all code between <?php ?> tags. The result is this: <script type="text/javascript"> var foo = 'bar'; var baz = 42; alert(baz); </script> The file_put_contents call did not result in anything,...
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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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POST Content-Length exceeds the limit

...ce but my webserver was still using the old one, I then had to do sudo killall -KILL php5-fpm then sudo service php5-fpm start – Memes May 11 '16 at 8:29 ...
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How does RewriteBase work in .htaccess

... want to clear up some details on htaccess.. does a ReWriteBase set it for all rules in the htaccess following what its declaration? is there a way to unset it, can it be reset? – Damon Apr 25 '13 at 15:32 ...