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What are the best PHP input sanitizing functions?

I am trying to come up with a function that I can pass all my strings through to sanitize. So that the string that comes out of it will be safe for database insertion. But there are so many filtering functions out there I am not sure which ones I should use/need. ...
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@ character before a function call

What is the difference between these two function calls in PHP? 5 Answers 5 ...
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What does it mean to start a PHP function with an ampersand?

... It's returning a reference, as mentioned already. In PHP 4, objects were assigned by value, just like any other value. This is highly unintuitive and contrary to how most other languages works. To get around the problem, references were used for variables that pointed to obje...
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How to use the PI constant in C++

... On some (especially older) platforms (see the comments below) you might need to #define _USE_MATH_DEFINES and then include the necessary header file: #include <math.h> and the value of pi can be accessed via: M_PI In my math....
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Correct owner/group/permissions for Apache 2 site files/folders under Mac OS X?

...go-rwx DIR (nobody other than owner can access content) chmod go+x DIR (to allow "users" including _www to "enter" the dir) sudo chgrp -R _www ~/my/web/root (all web content is now group _www) chmod -R go-rwx ~/my/web/root (nobody other than owner can access web content) chmod -R g+rx ~/my/web/root...
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“Cannot send session cache limiter - headers already sent” [duplicate]

... modifications to them now. Check that you don't send ANY content before calling session_start. Better yet, just make session_start the first thing you do in your PHP file (so put it at the absolute beginning, before all HTML etc). ...
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PHP namespaces and “use”

... So if i create another file called bootstrap.php and place an autoloader inside along with $circle = new Circle(); It includes the Circle.php but I am getting an error: Fatal error: Class 'Shape' not found in .../Circle.php on line 6. It appears to load Circle.php but n...
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Remove a cookie

... @machineaddict unset($_COOKIE['Hello']); is actually important if you might check the cookie somewhere later in the code. – Andreas Hultgren Jun 13 '14 at 12:08 ...
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Wolfram's Rule 34 in XKCD [closed]

The hover "joke" in #505 xkcd touts "I call rule 34 on Wolfram's Rule 34". 12 Answers ...
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How to specify in crontab by what user to run script? [closed]

...tab jobs that run under root, but that gives me some problems. For example all folders created in process of that cron job are under user root and group root. How can i make it to run under user www-data and group www-data so when i run scripts from my website i can manipulate those folders and fil...