Online PHP editor | output for qGqfi

@ 2014-03-28T03:57:50Z

<?php
// convert decimal to base 2 without using base_convert or printf
$base = 2;
$decnum = 23;
$num = 23;
$stack = null;

while( $num > 0)
{    
$arr[] = $num % $base;     // store remainder in array
$num = floor($num/$base);  // no integer division
}
var_dump($arr);
$wrong = join('',$arr);
var_dump($wrong);
$cat = join('',array_reverse($arr));
var_dump($cat);
printf("%b\n",$decnum);
echo base_convert(23,10,2);

// now using the stack
while( $decnum > 0)
{    
array_push($num % $base,$stack);     // store remainder in array
$decnum = floor($decnum/$base);  // no integer division
}
for ($i=0,$max = count($stack);$i < $max; $i++) {
          echo array_pop($stack);
}
echo "\n";

Output for 8.3.0 - 8.3.6: array(5) { [0]=> int(1) [1]=> int(1) [2]=> int(1) [3]=> int(0) [4]=> int(1) } string(5) "11101" string(5) "10111" 10111 10111 Fatal error: Uncaught Error: array_push(): Argument #1 ($array) could not be passed by reference in /in/qGqfi:24 Stack trace: #0 {main} thrown in /in/qGqfi on line 24
Process exited with code 255.
Output for 8.1.23 - 8.1.28, 8.2.10 - 8.2.18: array(5) { [0]=> int(1) [1]=> int(1) [2]=> int(1) [3]=> int(0) [4]=> int(1) } string(5) "11101" string(5) "10111" 10111 10111 Fatal error: Uncaught Error: array_push(): Argument #1 ($array) cannot be passed by reference in /in/qGqfi:24 Stack trace: #0 {main} thrown in /in/qGqfi on line 24
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.28, 5.4.0 - 5.4.26: Fatal error: Only variables can be passed by reference in /in/qGqfi on line 24
Process exited with code 255.
Output for 4.3.0 - 4.3.1: Fatal error: Only variables can be passed by reference in /in/qGqfi on line 24

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