Leading Underscore and Slash

[premium4ya]

Hi all

 

I am a beginner on PHP. As I was studying some examples, I faced the leading underscore before functions names and the slash before variable names and I can't figure out why they used them.

 

Can any one explaing the use of them.

[Ch0cu3r]

function names can be defined with letters, numbers and underscores. The underscore has no special meaning.

How ever with OOP, method names that begin with an underscore are treated a private functions, it was a coding convention back in PHP4.

 

If a variable has a slash in front of it, it is to prevent the variable form parsing in double quotes strings. For example

$var = 'hello';
echo "The value of \$var is: $var";
// outputs:  The value of $var is: hello

Edited October 22, 2013 by Ch0cu3r

[premium4ya]

Thanks for your reply