if variable is null php
How to check if submitted variable is null in PHP?
Thanks!
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March 18, 2011 at 4:05 PM
Check if Variable is NULL in PHP
You can use isset($var) to check if the variable is not defined or null in PHP. and after setting a variable, you might need to reset it too. In that case you can use...
unset($var);
This is useful in managing the session variable.
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if variable is null php
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