EDIT:
Problem solved by using $i+1 in function call.
I have trouble using variables in multiple foreaches. The problem commeth when I try to call a function inside foreach. Whenever I do this the main loop's iterator value is suddenly zero (no matter which lap it's on) but when I comment out the function call the iterator value shows as it should again.
Could someone point me to the right direction in accessing variables in following examples:
This works as it shoulds
for($i=0; $i<3; $i++)
{
echo $i; // 1, 2, 3
foreach($something as $value)
{
echo $i; // main loop's iterator value
foreach($value as $moreSomething)
{
echo $i; // main loop's iterator value
}
}
}
But this doesn't work, iterator shows up as a 0.
for($i=0; $i<3; $i++)
{
echo $i; // 1, 2, 3
foreach($something as $value)
{
echo $i; // 0
foreach($value as $moreSomething)
{
echo $i; // 0
$object->addStuff($i, $moreSomething); // i = 0, moreSomething is correct
}
}
}
EDIT: I'm adding example code to reproduce the problem. Note that this is about the behaviour of $i's value, not the correct order of the names or something like that. I'm just concerned as why the $i's value suddenly changes. Might be my logic, but see for yourself
(when using $i or $b in addName() function $i's output is 000000000012, when using $a then $i's output suddenly changes to 00000000001111111222)
class RockPaperScissors
{
private $nameArray;
// constructor
function RockPaperScissors ()
{
$this->nameArray = array();
}
function addName($level, $name)
{
$this->nameArray[$level][] = $name;
}
function getNames($level)
{
$array = array();
foreach ($this->nameArray as $key => $value)
{
if ($key == $level)
{
foreach ($value as $name)
{
$array[] = $name;
}
}
}
return $array;
}
function printArray()
{
print_r($this->nameArray);
}
}
function getNewNames($name)
{
$array = array();
switch ($name)
{
case "Mickey":
$array[] = "Morty";
$array[] = "Ferdie";
break;
case "Donald":
$array[] = "Houie";
$array[] = "Dewey";
$array[] = "Louie";
break;
case "Goofy":
$array[] = "Gilbert";
break;
case "Morty":
$array[] = "Morty-B";
break;
case "Ferdie":
$array[] = "Ferdie-B";
break;
case "Houie":
$array[] = "Houie-B";
break;
case "Dewey":
$array[] = "Dewey-B";
break;
case "Louie":
$array[] = "Louie-B";
break;
case "Gilbert":
$array[] = "Gilbert-B";
break;
}
return $array;
}
$MAX_LEVELS = 3;
$RPS = new RockPaperScissors();
$RPS->addName(0, "Mickey");
$RPS->addName(0, "Donald");
$RPS->addName(0, "Goofy");
$a = 0;
$b = 0;
for ($i=0; $i<$MAX_LEVELS; $i++)
{
$namesFromRPS = $RPS->getNames($i);
echo $i;
foreach($namesFromRPS as $name)
{
echo $i;
$newNames = getNewNames($name);
foreach($newNames as $newName)
{
echo $i;
// try switching $i to $a or $b and notice the behaviour change of $i
$RPS->addName($i, $newName);
}
$a++;
}
$b++;
}
//$RPS->printArray();