Creating two triangle using php - php

Question

Someone please help me to create a two triangle patter using PHP. I'm already code but the output didn't as expected below.
expected output
My code:
function generatePattern($num) {
for ($id1 = 0; $id1 <= $num; $id1 = $id1 + 1) {
for ($id2 = $num; $id2 >= $id1; $id2 = $id2 - 1) {
print(' ');
}
for ($id3 = 1; $id3 <= $id1; $id3 = $id3 + 1) {
if ($id3 % 4 == 3) {
echo "o";
} else if ($id3 % 2 == 1) {
echo "x";
} else {
echo " ";
}
}
echo "\n";
}
for ($id1 = 0; $id1 <= $num-1; $id1 = $id1 + 1) {
echo str_repeat(' ', $num - 1);
for($id3 = $num-1; $id3 >= $id1; $id3 = $id3 - 1){
if ($id3 % 4 == 3) {
echo "o";
} else if ($id3 % 2 == 1) {
if ($id1 % 4 == 3) {
echo "o";
} else if ($id1 % 2 == 0) {
echo " ";
} else if ($id1 % 2 == 1) {
echo "x";
} else {
echo "x";
}
} else if ($id3 == $id1){
echo "x";
} else {
echo " ";
}
}
echo "\n";
}
}
generatePattern(4);
And my current output like this (the bottom triangle still messed up)
output

Answer 1

Do the required changes for space between o and x
function generatePattern($num) {
if($num % 2 == 0)
{
$num1 = $num + 1;
}else{
$num1 = $num;
$num = $num - 1;
}
for ($id1 = 1; $id1 <= $num; $id1++) {
for ($id2 = $num; $id2 >= $id1; $id2--) {
print(' ');
}
for ($id3 = 1; $id3 <= $id1; $id3++) {
if ($id3 % 4 == 3) {
echo "o";
} else if ($id3 % 2 == 1) {
echo "x";
} else {
echo " ";
}
}
echo "\n";
}
$str = str_repeat('x o ', ceil(($num1*2)/4));
echo substr($str, 0, $num1*2);
echo "\n";
$j = $num;
for($id1 = $num; $id1 >=1; $id1 = $id1 - 2)
{
for($id2 = 2; $id2 >= 1; $id2--)
{
if($j % 2 == 0)
{
$pattern = [' ', 'x', ' ', 'o',];
}else{
$pattern = [' ', 'o', ' ', 'x',];
}
echo str_repeat(' ', ($id2%2 == 0) ? $num: $num - 1);
$design = implode('', $pattern);
do{
$design .= implode('', $pattern);
}while(strlen($design) < $id1);
echo substr($design, 0, $id1);
echo "\n";
}
$j--;
}
}
generatePattern(14);