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PHP Programming

Here are few of the of the points that one has to learn about the php programming language

Point / Topic / TrickDescription / Detail

isset

to check if a variable is set and is not null;

empty

check if a variable is empty or not

preg_replace

Perform a regular expression search and replace

urlencode

to encode the url in a way that it can be used directly as the query part of the url

htmlentities

transforms the html tags or html characters to plain text i.e. < is replaced by < and > by >

{..} in strings

// inorder to use the php variables inside the query string, we have to use them within the curly braces like
echo $feedUrl = "http://www.google.com/?q={$i}&option=search";
//during content rendering, the value is substituted instead of that variable $i.












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