Call PHP function from url?

Question

If I want to execute a php script, i just point the browser to www.something.com/myscript.php

But if i want to execute a specific function inside

Answer 1

I am using this on my website. To use this simply format your url like this www.something.com/myscript.php?function=myFunction&arg=foo&otherarg=bar It doesn't matter what you call the args in the url and you can have as many args as you want.

<?php
        if(isset($_GET["function"])&&!empty($_GET)){
            $function = $_GET["function"];
            unset($_GET["function"]);
            $canexec = array(
                "function name that can be executed",
                "function name that can be executed",
                "function name that can be executed"
            );
            if(!in_array($function,$canexec)){
                die("That function cannot be executed via url.");
            }
            $args = array();
            if(count($_GET)>0){
                //handle args
                foreach($_GET as $arg){
                   array_push($args,$arg);
                }
            }
            $result = call_user_func_array($function,$args);
            //this part is only necessary if you want to send a response to a http request.
            if(is_bool($result)){
                die(($r)?'true':'false');
            }
            else if(is_array($result)){
                die(json_encode($result));
            }
            else {
                die($result);
            }
        }
        myFunction($foo,$bar){
            echo $foo." ".$bar;
        }
    ?>

Answer 2

Try this one

$urlParams = explode('/', $_SERVER['REQUEST_URI']);
$functionName = $urlParams[2];
$functionName($urlParams);


function func1 ($urlParams) {
    echo "In func1";
}

function func2 ($urlParams) {
    echo "In func2";
    echo "<br/>Argument 1 -> ".$urlParams[3];
    echo "<br/>Argument 2 -> ".$urlParams[4];
}

and the urls can be as below
http://domain.com/url.php/func1
http://domain.com/url.php/func2/arg1/arg2

Answer 3

You could do something like this (not recommended for security reasons): www.exampe.com/myscript.php?run=getNames

then:

<?php
if (isset($_GET['run']) && function_exists($_GET['run'])){
  echo $_GET['run']();
} else {
  echo 'Function not Found';
}

You would be better off using a php class instead of trying to call a function on the global namespace because they could call a potenitally dangerous function or call a function you don't want them to see the result to:

<?php
class PublicView {
  function get_page(){ echo 'hey'; }
}
if (isset($_GET['run']) && method_exists('PublicView',$_GET['run'])){
  $view = new PublicView();
  $view->$_GET['run']();
} else {
  echo 'Function not found';
}

This also wouldn't allow the class's private functions to be called, etc.

Answer 4

Use the constructor of your PHP Class:

<?php
class YourClass {

    function __construct() {
        $functionName = myFunction;

        if (isset($_GET['functionName']) 
                && $_GET['functionName'] == $functionName)){

            myFunction();
        }
        else {
            echo "Function not found";
        }
    }
}

Answer 5

you could put the function call in the script.

myFunction();

function myFunction() { .... }

Answer 6

You cannot do this without adding special code to the PHP file itself to grab the name of the function from the URL and invoking it.