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| PHP Tutorial 22 - Check If Variable Is Set (PHP For Beginners) |
The isset function will allow you to determine if a variable has been set or not. This can be useful when checking if user input has been entered or not. The function will return either a true or false value. For more information, check out the website: http://howtostartprogramming.com/PHP/php-tutorial-22-check-if-variable-is-set/
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