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By phpzag
via phpzag.com
Published: Oct 15 2012 / 02:28

10 Smart Tips to Become a Better PHP Developer
Currently PHP has become the most popular programming language for web development. Millions of websites are developed using PHP. There are many popular website such as Facebook, Wikipedia and also CMS like WordPress, Joomla and Drupal which are built with the PHP language.
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gusc replied ago:

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All is good except the usage of isset ... it's always a good practice to predefine your variables, so if you set $var = ''; and do an isset() - it will return true, because "the variable IS set" to empty string. One thought though, is it faster to use $var == '' or strlen($var) == 0?

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