include() and require() function does the cell phone spy canada same process of calling a php or html or js file.
When the included file (i.e., calling a file) is missing in its actual directory, then require() function will returns FATAL ERROR and include() function will return WARNING.
include_once() function will include a file only when that http://pinnaclefitnessclub.com/track-a-cell-phone-online-5rr file is not http://lasayadeco.com/jx-call-blocker-for-nokia-5130-free-download.html included before. This function http://vodka.riverfronttimes.com/pc-spy-camera-software-dr is the recommended for including files, because including a http://pinnaclefitnessclub.com/cpr-call-blocker-v201-yztd file more than once will arise ERROR
require_once() function performs the same operation performed by include_once() function. The only difference between include_once() function and require_once() function is as like the difference between include() and require() that is include_once() function returns WARNING and require_once() function returns FATAL ERROR, when file is missing.
Example for include() function and require() function
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</p> <p><?php</p> <p>include('meta.php');</p> <p>require('head.php');</p> <p>echo "Require and include function";</p> <p>?></p> <a style="text-decoration: none; color: inherit; cursor: default; outline: none;" href="http://websiteviewing.com/spy-windows-7-phone-0r6">spy windows 7 phone</a> <p>