Description:
------------
Important: The problem occurs only with php-cgi binary and not with php binary.

The problem is, that the following snipped returns NULL instead of true. My guess is, that it has to do with a) if($variable) and b) the fact that "throw new Exception" is the last expression before return.

function testMinimal(){
  $foo = true;

  if($foo){
  	echo '';
  } else {
  	throw new Exception('foo');	
  }

  return true;
}

A attached a test script with several cases. 

For example this one returns NULL as well:

function testMinimalDie(){
  $foo = true;

  if($foo){
  	echo '';
  } else {
  	die();
  }

  return true;
}

whereas those two work:

function testMinimalNoVar(){
  if(true){
  	echo '';
  } else {
  	throw new Exception('foo');	
  }

  return true;
}

function testMinimalHack(){
  $foo = true;

  if($foo){
  	echo '';
  } else {
  	throw new Exception('foo');	
  }

  $someUnrelatedVariable=1;

  return true;
}

Test script:
---------------
<?php

echo "testMinimal ";
var_dump(testMinimal());
echo "testMinimalOk ";
var_dump(testMinimalOk());
echo "testMinimalNoEx ";
var_dump(testMinimalNoEx());
echo "testMinimalDie ";
var_dump(testMinimalDie());
echo "testMinimalDivZero ";
var_dump(testMinimalDivZero());
echo "testMinimalNoVar ";
var_dump(testMinimalNoVar());
echo "testMinimalEEE ";
var_dump(testMinimalEEE());
echo "testMinimalEE ";
var_dump(testMinimalEE());
echo "testMinimalReturnFalse ";
var_dump(testMinimalReturnFalse());
echo "testMinimalHack ";
var_dump(testMinimalHack());

function testMinimal(){
  $foo = true;

  if($foo){
  	echo '';
  } else {
  	throw new Exception('foo');	
  }

  return true;
}

function testMinimalHack(){
  $foo = true;

  if($foo){
  	echo '';
  } else {
  	throw new Exception('foo');	
  }

  $someUnrelatedVariable=1;

  return true;
}

function testMinimalEEE(){
  $foo = true;

  if($foo===true){
  	echo '';
  } else {
  	throw new Exception('foo');	
  }

  return true;
}

function testMinimalEE(){
  $foo = true;

  if($foo==true){
  	echo '';
  } else {
  	throw new Exception('foo');	
  }

  return true;
}


function testMinimalNoVar(){
  if(true){
  	echo '';
  } else {
  	throw new Exception('foo');	
  }

  return true;
}

function testMinimalReturnFalse(){
  if(true){
  	echo '';
  } else {
  	return false;	
  }

  return true;
}

function testMinimalNoEx(){
  $foo = true;

  if($foo){
  	echo '';
  } else {
 	echo 'gugus'; 	
  }

  return true;
}

function testMinimalDie(){
  $foo = true;

  if($foo){
  	echo '';
  } else {
  	die();
  }

  return true;
}

function testMinimalDivZero(){
  $foo = true;

  if($foo){
  	echo '';
  } else {
  	0/0;
  }

  return true;
}

function testMinimalOk(){
  $foo = true;

  if($foo){
  	echo '';
  }

  return true;
}
?>


Expected result:
----------------
testMinimal bool(true)
testMinimalOk bool(true)
testMinimalNoEx bool(true)
testMinimalDie bool(true)
testMinimalDivZero bool(true)
testMinimalNoVar bool(true)
testMinimalEEE bool(true)
testMinimalEE bool(true)
testMinimalReturnFalse bool(true)
testMinimalHack bool(true)


Actual result:
--------------
testMinimal NULL
testMinimalOk bool(true)
testMinimalNoEx bool(true)
testMinimalDie NULL
testMinimalDivZero bool(true)
testMinimalNoVar bool(true)
testMinimalEEE NULL
testMinimalEE NULL
testMinimalReturnFalse bool(true)
testMinimalHack bool(true)