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@ 2015-12-06T11:41:01Z

<?php
$input = "turn off 499,499 through 500,500";

$lights = [[]];

for($i = 0; $i<1000; $i++){
    for($j = 0; $j<1000; $j++){
        $lights[$i][$j] = 0;
    }
}

$inputs = explode("\n",$input);

function action($s){
    $on = preg_match("/turn on/",$s);
    $off = preg_match("/turn off/",$s);
    $toggle = preg_match("/toggle/",$s);
    if($on > 0){
        return 1;
    }
    else if($off>0){
        return 2;
    }
    else if($toggle>0){
        return 3;
    }
}

for($i = 0; $i < count($inputs); $i++){
    $matches = null;
    preg_match_all("/\d{1,3},\d{1,3}/",$inputs[$i], $matches);
    $from = $matches[0];
    $to = $matches[1];
    $x1 = explode(",",$from)[0][0];
    $y1 = explode(",",$from)[0][1];
    $x2 = explode(",",$to)[0];
    $y2 = explode(",",$to)[1];
        for($j = $y1; $j<=$y2; $j++){
            for($k = $x1; $k<=$x2; $k++){
                if(action($inputs[$i])===1){
                    $lights[$j][$k] = 1;
                }
                else if(action($inputs[$i])===2){
                    $lights[$j][$k] = 0;
                }
                else if(action($inputs[$i])===3){
                    if($lights[$j][$k] == 0){
                        $lights[$j][$k] = 1;
                    }
                    else{
                        $lights[$j][$k] = 0;
                    }
                }
            }
        }
}
$count = 0;
for($i = 0; $i<1000; $i++){
    for($j = 0; $j<1000; $j++){
        if($lights[$i][$j] == 1){
            $count++;
        }
    }
}

echo $count;

?>

Output for git.master, rfc.property-hooks: Warning: Undefined array key 1 in /in/n9EkO on line 33 Fatal error: Uncaught TypeError: explode(): Argument #2 ($string) must be of type string, array given in /in/n9EkO:34 Stack trace: #0 /in/n9EkO(34): explode(',', Array) #1 {main} thrown in /in/n9EkO on line 34
Process exited with code 255.
Output for git.master_jit: Fatal error: Out of memory (allocated 18874368 bytes) (tried to allocate 20480 bytes) in /in/n9EkO on line 8 mmap() failed: [12] Cannot allocate memory mmap() failed: [12] Cannot allocate memory
Process exited with code 255.

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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