CODEWITHSUNDEEP
phpvariablesmethods
jxwd
jxwd

Reputation: 1

calling a PHP method where name is a variable

I am trying to call several methods from a class 'Content', i.e.

$content .= Content::page_contact_us();

Except page_contact_us can be anything...

I tried

$method = 'Content::page_contact_us()';

$content .= $$method_name;

And $content was blank...

Upvotes: 0

Views: 141

Answers (3)

Poiz
Poiz

Reputation: 7617

You can achieve that using PHP's call_user_func(). Here's how:

<?php
    class Content{
        public static function whatever(){
            return "This is a response from whatever Method inside the Content Class...";
        }
    }


    $method     = 'whatever';
    $content    = "";
    $content   .= Content::whatever();

    $content2   = call_user_func(array('Content', $method));

    var_dump($content);
    var_dump($content2);

     //RESPECTIVELY DISPLAYS::              
     'This is a response from whatever Method inside the Content Class...' (length=67)
     'This is a response from whatever Method inside the Content Class...' (length=67)

Upvotes: 0

AD7six
AD7six

Reputation: 66217

A method name can be a variable, in the same way a function name can be a variable:

<?php

class Content 
{
    public static function foo()
    {   
        echo 'Hello';
    }   
}

$name = 'foo';
echo Content::$name(); // Outputs 'Hello'

If you really do need/mean anything, call_user_func allows calling anything:

$result = call_user_func('time'); // a function

$result = call_user_func('Content::foo'); // a static method
$result = call_user_func(['Content', 'foo']); // a static method

$result = call_user_func([$contentObject 'someMethod']); // an instance method

There are further examples in the callable docs.

Upvotes: 2

TimoStaudinger
TimoStaudinger

Reputation: 42460

You can use the following syntax to call variable functions:

$func = 'foo';
$func();        // This calls foo()

PHP Docs

Or, in your case:

$method = 'Content::page_contact_us';
$content .= $method();

Upvotes: 1

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