How to return string that extended by recursive loop in a PHP function?

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How to return string that extended by recursive loop in a php function?

What I have tried:

<?php

function test_loop($string_name,$x)
{
    $x = $x + 1;
    if($x < 10)
    {
        $string_name = $string_name . $x . "##";
        test_loop($string_name,$x);
    }
    return $string_name;
}

$bababa = test_loop(0,1);

echo $bababa;

//output is 02##


?>
How to make variable $bababa store value 02##3##4##5##6##7##8##9## ?

Posted 28-Apr-20 21:31pm

Zac Ang

Updated 28-Apr-20 21:37pm

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OriginalGriff · Accepted Answer · 2020-04-28T21:38:00

Solution 1

You need to use the return value inside the function, as well as outside it ...

PHP

test_loop($string_name,$x);

Does the work, but throws away the answer ...
Try this:

PHP

function test_loop($string_name,$x)
{
    $x = $x + 1;
    if($x < 10)
    {
        $string_name = test_loop($string_name . $x . "##", $x);
    }
    return $string_name;
}

$bababa = test_loop(0,1);

Posted 28-Apr-20 21:38pm

OriginalGriff

Comments

Zac Ang 29-Apr-20 4:27am

Perfect. Thank you very much.

OriginalGriff 29-Apr-20 4:33am

You're welcome!