php: better way to name variables - because you want to be understood

• PHP
• Standard

I would like to share how I have been naming variables for many years: camelCase prefixed with a leading letter, which gives a hint about the data type.

This style resembles the so-called Hungarian notation, but not completely.

boolean

// leading $b for boolean type
$bSuccess = true;

integer

// leading $i for integer type
$iYear = 1969;

string

// leading $s for type string
$sName = 'Foo Bar';

array

// leading $a for array type
$aData = array(1, 2, 3);

object

// leading $o for type object
$oDTRequestCurrent = \MVC\Request::getCurrentRequest();

resource

// leading $r or $h for type resource
$rCurl = curl_init();

handle

// leading $r or $h for type handle
$hCurl = curl_init();

float

// leading $f|$d for float (double) type
$fPrice = 10.90;
$dPrice = 10.90;

mixed

// leading $m for mixed data
$mData;