CODEWITHSUNDEEP
phpclassfunctionmethods
conmen
conmen

Reputation: 2417

PHP call Class method / function

How can I call following Class method or function?

Let say I have this params get from url:

$var = filter($_GET['params']);

Class:

class Functions{

    public function filter($data){
        $data = trim(htmlentities(strip_tags($data)));

        if(get_magic_quotes_gpc())
            $data = stripslashes($data);

        $data = mysql_real_escape_string($data);

        return $data;
    }

}

thanks.

Upvotes: 18

Views: 141550

Answers (7)

sandip
sandip

Reputation: 3289

Within the class you can call function by using :

 $this->filter();

Outside of the class

you have to create an object of a class

 ex: $obj = new Functions();

     $obj->filter($param);

for more about OOPs in php

this example:

class test {
 public function newTest(){
      $this->bigTest();// we don't need to create an object we can call simply using $this
      $this->smallTest();
 }

 private function bigTest(){
      //Big Test Here
 }

 private function smallTest(){
      //Small Test Here
 }

 public function scoreTest(){
      //Scoring code here;
 }
}

$testObject = new test();

$testObject->newTest();

$testObject->scoreTest();

hope it will help!

Upvotes: 5

UnholyRanger
UnholyRanger

Reputation: 1971

To answer your question, the current method would be to create the object then call the method:

$functions = new Functions();
$var = $functions->filter($_GET['params']);

Another way would be to make the method static since the class has no private data to rely on:

public static function filter($data){

This can then be called like so:

$var = Functions::filter($_GET['params']);

Lastly, you do not need a class and can just have a file of functions which you include. So you remove the class Functions and the public in the method. This can then be called like you tried:

$var = filter($_GET['params']);

Upvotes: 30

MatRt
MatRt

Reputation: 3534

As th function is not using $this at all, you can add a static keyword just after public and then call

Functions::filter($_GET['params']);

Avoiding the creation of an object just for one method call

Upvotes: 1

Volkan
Volkan

Reputation: 2210

This way:

 $instance = new Functions(); // create an instance (object) of functions class
 $instance->filter($data); // now call it

Upvotes: 0

dnagirl
dnagirl

Reputation: 20446

$f = new Functions;
$var = $f->filter($_GET['params']);

Have a look at the PHP manual section on Object Oriented programming

Upvotes: 1

Dipesh Parmar
Dipesh Parmar

Reputation: 27382

You need to create Object for the class.

$obj = new Functions();
$var = $obj->filter($_GET['params']);

Upvotes: 0

Edwin Alex
Edwin Alex

Reputation: 5108

Create object for the class and call, if you want to call it from other pages.

$obj = new Functions();

$var = $obj->filter($_GET['params']);

Or inside the same class instances [ methods ], try this.

$var = $this->filter($_GET['params']);

Upvotes: 2

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