PHP echo a returned value from another function in the same class

Question

I'm having trouble to echo a result from a function within a function in the same class.

class className 
    {
         function first_function()
         {
             echo "Here it is: " . $this->second_function('test');
         }

         function second_function($string)
         {
             return $string;
         }
    }

That returns only:

Here it is:

Echoing the $string in my second_function() results in:

testHere it is:

Any suggestions? Thank you.

I'm guessing it should echo Here it is: test ... and I can't immediately see a reason why it wouldn't. — CD001
– CD001, Commented May 19, 2016 at 14:12
@Iwan – no error messages. the second_function returns nothing... — Klaas
– Klaas, Commented May 19, 2016 at 14:13
It's normal behavior, if you echo $string in your second function, the second function is called before the result of the first is sent. However the result should be "testHere it is : test" Maybe you replace return with echo, which is not the right thing to do. — job3dot5
– job3dot5, Commented May 19, 2016 at 14:13

Klaas · Accepted Answer · 2016-05-19 15:07:22Z

1

as @cherryTD mentioned, I did simplify the code. I see why it didn't work. Posting it here so it might help someone else. The second function is a recursive function and that didn't work:

function second_function($var,$cnt) {
    [database query]
    if(result) {
        $cnt++;
        $this->second_function($var, $cnt);
    } else {
        return $var;
    }
}

But this does work:

function second_function($var,$cnt) {
    [database query here]
    if(result) {
        $cnt++;
        return $this->second_function($var, $cnt);
    } else {
        return $var;
    }
}

A return was needed when calling the function from within itself.

so:

$this->second_function($var, $cnt);

had to be:

return $this->second_function($var, $cnt);

Thank you for the responses, everyone.

answered May 19, 2016 at 15:07

Klaas

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Comments

kiran gadhvi · Accepted Answer · 2016-05-19 14:12:55Z

0

class className 
    {
         function first_function()
         {
             echo "Here it is: " . $this->second_function('test');
         }

         function second_function($string)
         {
             return $string;
         }
    }


    $obj = new className();
   $a=  $obj->first_function();
   echo $a;

answered May 19, 2016 at 14:12

kiran gadhvi

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1 Comment

kiran gadhvi Over a year ago

it's woking fine then what is the problem?

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