Question 226076 in PHP Question posted in
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Php – Convert this nested if to reduce dimensions as I am expecting to add more strings in the future

This is my code. I cant post actual code but you can see only at 3 strings im ending up with crazy dimension. How can i write this in a way that is conducive to including more than say 10 values?

$x = 'a';
$y = 'b';
$z = 'c';

if ($x){
  if($y){
     if($z){
        return $x.$y.$z;
     }
     return $x.$y;
  } 
  return $x;
}

if($y){
  if($z){
    return $y.$z;
  }
  return $y;
}

if($z){
  return $z;
}

return "";
Tags:

2

Answers


  1. 0

    To simplify your nested ifs, you can concatenate strings based on their truthy value like this:

    $x = 'a';
$y = 'b';
$z = 'c';

$result = '';

if ($x) $result .= $x;
if ($y) $result .= $y;
if ($z) $result .= $z;

return $result;

    For future strings, just add:

    if ($newVariable) $result .= $newVariable;
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  2. 0

    Do these strings have to be stored in separate variables? if you can store them in an array you can use implode() to concatenate them.

    E.g.

    $strs = [];
$strs[] = 'a';
$strs[] = 'b';
$strs[] = 'c';

return implode('',$strs); // abc
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