<?php
/******************************************************************************
 
Welcome to GDB Online.
GDB online is an online compiler and debugger tool for C, C++, Python, Java, PHP, Ruby, Perl,
C#, OCaml, VB, Swift, Pascal, Fortran, Haskell, Objective-C, Assembly, HTML, CSS, JS, SQLite, Prolog.
Code, Compile, Run and Debug online from anywhere in world.
 
*******************************************************************************/
 
function pattern($n){
    if($n==1 || $n%2==0 || $n<0){
        echo "error";
    }
    else{
        for($i=0; $i<n+2; $i++){
            for($j=0; $j<=(($n+2)/2-1); $j++){
                echo " ";
            }
            echo "e\n";
        }
        for($j=0; $j<n; $j++){
            for($i=0; $i<$n+2; $i++){
                echo "*";
            }
            if($j==($n-1)/2){
                for($x=0; $x<$n+2; $x++){
                    echo "e";
                }
            }
            else{
                echo " ";
            }
            echo "\n";
        }
    }
}
 
echo pattern(9);
 

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