PHP Version agnostic way to set default value in input variable that could be an array with missing index









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I have a stupid problem because I've got calls to this function all over my code base. Sometimes my code is run on PHP 5, 7 and who knows what else.



I need a way to resolve this deprecated code issue, hopefully without rewriting every call to the existing function.



It should be noted that the pass by reference is the main issue I'm struggling with right now.



Is it possible?



 function getSetting(& $var, $default=0) 
if (isset($var))
return $var;

return $default;



Remember that sometimes a plain variable is passed in as the first parameter. Other times an array with non-existing index value is passed (and of course, sometimes the array index exists and has a value).



... the original reason I chose pass by reference so the function can look at the outer value.










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    up vote
    1
    down vote

    favorite












    I have a stupid problem because I've got calls to this function all over my code base. Sometimes my code is run on PHP 5, 7 and who knows what else.



    I need a way to resolve this deprecated code issue, hopefully without rewriting every call to the existing function.



    It should be noted that the pass by reference is the main issue I'm struggling with right now.



    Is it possible?



     function getSetting(& $var, $default=0) 
    if (isset($var))
    return $var;

    return $default;



    Remember that sometimes a plain variable is passed in as the first parameter. Other times an array with non-existing index value is passed (and of course, sometimes the array index exists and has a value).



    ... the original reason I chose pass by reference so the function can look at the outer value.










    share|improve this question























      up vote
      1
      down vote

      favorite









      up vote
      1
      down vote

      favorite











      I have a stupid problem because I've got calls to this function all over my code base. Sometimes my code is run on PHP 5, 7 and who knows what else.



      I need a way to resolve this deprecated code issue, hopefully without rewriting every call to the existing function.



      It should be noted that the pass by reference is the main issue I'm struggling with right now.



      Is it possible?



       function getSetting(& $var, $default=0) 
      if (isset($var))
      return $var;

      return $default;



      Remember that sometimes a plain variable is passed in as the first parameter. Other times an array with non-existing index value is passed (and of course, sometimes the array index exists and has a value).



      ... the original reason I chose pass by reference so the function can look at the outer value.










      share|improve this question













      I have a stupid problem because I've got calls to this function all over my code base. Sometimes my code is run on PHP 5, 7 and who knows what else.



      I need a way to resolve this deprecated code issue, hopefully without rewriting every call to the existing function.



      It should be noted that the pass by reference is the main issue I'm struggling with right now.



      Is it possible?



       function getSetting(& $var, $default=0) 
      if (isset($var))
      return $var;

      return $default;



      Remember that sometimes a plain variable is passed in as the first parameter. Other times an array with non-existing index value is passed (and of course, sometimes the array index exists and has a value).



      ... the original reason I chose pass by reference so the function can look at the outer value.







      php reference deprecated






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 11 at 14:55









      Byron

      164




      164






















          1 Answer
          1






          active

          oldest

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          up vote
          0
          down vote













          work arounds



          Version test for the function



          if (version_compare(phpversion(), '7.0', '<')) 

          function getSetting() echo "Old function";

          else

          function getSetting() echo "New function";



          its not great but works or you could have 2 functions files and include them based on version.






          share|improve this answer




















          • I appreciate the thought. I understand how the PHP 5.x version works. I'm not certain how to write the PHP 7.x version of that function. Any thoughts? At this point, any solution that works for both is a good one, even if it isn't elegant.
            – Byron
            Nov 11 at 16:39










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          1 Answer
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          active

          oldest

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          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes








          up vote
          0
          down vote













          work arounds



          Version test for the function



          if (version_compare(phpversion(), '7.0', '<')) 

          function getSetting() echo "Old function";

          else

          function getSetting() echo "New function";



          its not great but works or you could have 2 functions files and include them based on version.






          share|improve this answer




















          • I appreciate the thought. I understand how the PHP 5.x version works. I'm not certain how to write the PHP 7.x version of that function. Any thoughts? At this point, any solution that works for both is a good one, even if it isn't elegant.
            – Byron
            Nov 11 at 16:39














          up vote
          0
          down vote













          work arounds



          Version test for the function



          if (version_compare(phpversion(), '7.0', '<')) 

          function getSetting() echo "Old function";

          else

          function getSetting() echo "New function";



          its not great but works or you could have 2 functions files and include them based on version.






          share|improve this answer




















          • I appreciate the thought. I understand how the PHP 5.x version works. I'm not certain how to write the PHP 7.x version of that function. Any thoughts? At this point, any solution that works for both is a good one, even if it isn't elegant.
            – Byron
            Nov 11 at 16:39












          up vote
          0
          down vote










          up vote
          0
          down vote









          work arounds



          Version test for the function



          if (version_compare(phpversion(), '7.0', '<')) 

          function getSetting() echo "Old function";

          else

          function getSetting() echo "New function";



          its not great but works or you could have 2 functions files and include them based on version.






          share|improve this answer












          work arounds



          Version test for the function



          if (version_compare(phpversion(), '7.0', '<')) 

          function getSetting() echo "Old function";

          else

          function getSetting() echo "New function";



          its not great but works or you could have 2 functions files and include them based on version.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 11 at 15:04









          IcePops

          64




          64











          • I appreciate the thought. I understand how the PHP 5.x version works. I'm not certain how to write the PHP 7.x version of that function. Any thoughts? At this point, any solution that works for both is a good one, even if it isn't elegant.
            – Byron
            Nov 11 at 16:39
















          • I appreciate the thought. I understand how the PHP 5.x version works. I'm not certain how to write the PHP 7.x version of that function. Any thoughts? At this point, any solution that works for both is a good one, even if it isn't elegant.
            – Byron
            Nov 11 at 16:39















          I appreciate the thought. I understand how the PHP 5.x version works. I'm not certain how to write the PHP 7.x version of that function. Any thoughts? At this point, any solution that works for both is a good one, even if it isn't elegant.
          – Byron
          Nov 11 at 16:39




          I appreciate the thought. I understand how the PHP 5.x version works. I'm not certain how to write the PHP 7.x version of that function. Any thoughts? At this point, any solution that works for both is a good one, even if it isn't elegant.
          – Byron
          Nov 11 at 16:39

















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