如何以“全局”方式存储PHP变量？

Question

That may not be the correct terminology, "global".

What I'm trying to figure out is this.

I've got something like:

<?php if (empty($nest)) {
   $mothercrying = 'all day long';
   echo 'Mother is crying '.$mothercrying;
} if (!empty($nest)) {
   echo 'Mother is NOT crying '.$mothercrying;
} ?>

Is there some way to declare $mothercrying inside of the first if so that I can use it in the second one, too?

Note that I can't declare $mothercrying before both if statements, as what I'm working with is actually a couple of hundred lines longer than this.

Answer 1

Use session

  session_start();

if (empty($nest)) {
   $mothercrying = 'all day long';
   $_SESSION['cry']= $mothercrying;
   echo 'Mother is crying '.$_SESSION['cry'];
} if (!empty($nest)) {
  if(isset($mothercrying)){
    $_SESSION['cry']= $mothercrying;
  }else{
    $_SESSION['cry']='all day long';
  }        
   echo 'Mother is NOT crying '.$_SESSION['cry'];
}