In PHP classes is it possible to create a private variable inside of a function? -

in using php classes have noticed inside class when define variable in function property of class in '$this->variablename way' automatically becomes public variable of class.

class example {     public function setstring(){     $this->string = "string";     } } 

so

$class = new example(); echo $class->string;  

outputs: string;

however in case wanted create private variables accessible functions inside class, there anyway declare them inside of function setstring()? instead of declaring them private outside of function this.

class example {      private $string ='';      public function setstring(){            $this->string = "string";      } } 

the reasons might neatness, not have long list of private variables declared @ beggining of class.

no, there not way that.

in php, typically declare all class/instance properties above functions in alphabetical order self-documenting comments. "neat" , clear way write classes. recommended avoid public properties entirely, using getters , setters needed.

the canonical coding style php defined in psr-1 , psr-2. recommend check out phpdoc.

keep in mind, variables declared within scope of class method private method. need class property if plan access other methods.

<?php class example {    /**    * holds private string    * @var string    */   private $string = '';    /**    * sets private string variable    */   public function setstring() {     $this->string = 'this string accessible other methods';     $privatevar = 'this string accessible within method';   }  }