PHP Variable Prefix
I have been using this variables prefixes in order to better organize my codes.
This helps as well when doing any kind of code analysis through an automatet script/tool
Once I had a really nice task (was really nice indeed) to convert an existing system from php4 to php 5.3.
All was done using a combination of php and shell script with lots of regular expression.
Actually this was the time when I learned regular expression.
If we had followed some convetions with variables names, the task would be way easier.
Some people say that just a good name is enough but in this case we had many good names that leaded to very nice problems
Just to give some examples:
Good Bad Names:
<?php
$date = new TDate();
$date = '2014-09-27';
$today = new TDate();
$today = '2014-09-27';
?>Now, this is the convetions I have been using:
a - array - $aRow b - boolean - $bExists o - object - $oUser m - mixed - $mParam s - string - $sName f - function - $fCallback r - resource - $rFile i - integer - $iId d - double - $dPrice
<?php
$aRow = [1, 2, 3]; // a - array
$bExists = true; // b - boolean
$oUser = new User(); // o - object
$sName = 'Mathias Grimm' // s - string
$fCallback = function(){echo 'hi';} // f - function
$rFile = fopen('file.txt', 'r'); // r - resource
$iId = 12312312; // i - integer
$dPrice = 10.99; // d - double
// m - mixed
function foo($mParam)
{
}
foo(['name' => 'Mathias Grimm', 'site' => 'phpEmpregos.com' ]);
$oParam = new stdClass();
$oParam->name = 'Mathias'
foo($oParam);
?>