Online PHP editor | output for l53Fb

@ 2015-12-07T17:19:05Z

<?php
    $input = "123 -> x
456 -> y
x AND y -> d
x OR y -> e
x LSHIFT 2 -> f
y RSHIFT 2 -> g
NOT x -> h
NOT y -> i";
    $inputs = explode("\n", $input);
    
    function operation($s){
        $matchesand = null;
        $and = preg_match("/(.{1,2})\sAND\s(.{1,2})\s->\s(.{1,2})/",$s,$matchesand);
        if(count($matchesand)>0){
            return [$matchesand[1] & $matchesand[2], $matchesand[3]];
        }
        
        $matchesor= null;
        $or = preg_match("/(.{1,2})\sOR\s(.{1,2})\s->\s(.{1,2})/",$s,$matchesor);
        if(count($matchesor)>0){
            return [$matchesor[1] | $matchesor[2], $matchesor[3]];
        }
        
        $matchesnot = null;
        $not = preg_match("/NOT\s(.{1,2})\s->\s(.{1,2})/",$s,$matchesnot);
        if(count($matchesnot)>0){
            return [~$matchesand[1], $matchesnot[2]];
        }
        
        $matchesleft = null;
        $left = preg_match("/(.{1,2})\sLSHIFT\s(.{1,2})\s->\s(.{1,2})/",$s,$matchesleft);
        if(count($matchesleft)>0){
            return [$matchesleft[1] << $matchesleft[2], $matchesleft[3]];
        }
        $matchesright = null;
        $right = preg_match("/(.{1,2})\sRSHIFT\s(.{1,2})\s->\s(.{1,2})/",$s,$matchesright);
        if(count($matchesright)>0){
            return [$matchesright[1] >> $matchesright[2], $matchesright[3]];
        }
        
        $matches = null;
        $simple = preg_match("/(.{1,5})\s->\s(.{1,2})/",$s,$matches);
        if(count($matches)>0){
            return [$matches[1], $matches[2]];
        }
    }
    $array=[];
    for($i = 'a'; $i<'z'; $i++){
        $array[$i]=0;
    }
    for($i = 'a'; $i<'z'; $i++){
        for($j = 'a'; $j<'z'; $j++){
            $array[$i.$j]=0;
        }
    }
    for($i = 0; $i<count($inputs); $i++){
        $var = operation($inputs[$i])[1];
        $val = operation($inputs[$i])[0];
        
        $array[$var] = $val;
    }
    var_dump($array);
?>

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7: Fatal error: Uncaught TypeError: Unsupported operand types: string << string in /in/l53Fb:34 Stack trace: #0 /in/l53Fb(58): operation('x LSHIFT 2 -> f') #1 {main} thrown in /in/l53Fb on line 34
Process exited with code 255.
Output for 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33: Warning: A non-numeric value encountered in /in/l53Fb on line 34 Warning: A non-numeric value encountered in /in/l53Fb on line 34 Warning: A non-numeric value encountered in /in/l53Fb on line 39 Warning: A non-numeric value encountered in /in/l53Fb on line 39 Notice: Undefined offset: 1 in /in/l53Fb on line 28 Fatal error: Uncaught Error: Unsupported operand types in /in/l53Fb:28 Stack trace: #0 /in/l53Fb(58): operation('NOT x -> h') #1 {main} thrown in /in/l53Fb on line 28
Process exited with code 255.
Output for 7.3.32 - 7.3.33: Warning: A non-numeric value encountered in /in/l53Fb on line 34 Warning: A non-numeric value encountered in /in/l53Fb on line 34 Warning: A non-numeric value encountered in /in/l53Fb on line 39 Warning: A non-numeric value encountered in /in/l53Fb on line 39 Fatal error: Uncaught Error: Unsupported operand types in /in/l53Fb:28 Stack trace: #0 /in/l53Fb(58): operation('NOT x -> h') #1 {main} thrown in /in/l53Fb on line 28
Process exited with code 255.
Output for 7.0.0 - 7.0.20: Notice: Undefined offset: 1 in /in/l53Fb on line 28 Fatal error: Uncaught Error: Unsupported operand types in /in/l53Fb:28 Stack trace: #0 /in/l53Fb(58): operation('NOT x -> h') #1 {main} thrown in /in/l53Fb on line 28
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28: Notice: Undefined offset: 1 in /in/l53Fb on line 28 Fatal error: Unsupported operand types in /in/l53Fb on line 28
Process exited with code 255.

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