I tried to clone your solution in PHP but I get 8/16 on the test cases. Runtime error on the failed scenarios. I tested the same code on my pc and it goes smoothly, checked unlocking a failed test case and it succed. any hint? Here's my code:

// Complete the arrayManipulation function below. function arrayManipulation(queries) { max = 0; n, 0); //$stderr = fopen("php://stderr", "w");

foreach(`$queries as $`i => $query){
    `$a = $`query[0];
    `$b = $`query[1];
    `$k = $`query[2];
    if($a-1>=0){
        `$result_array[$`a-1] += $k;
    }
    else{
        var_dump(" a - 1 is negative! ".$a);
    }
    if(`$b < $`n){
        `$result_array[$`b] -= $k;
    }
    else{
        var_dump(" b is too big! ".$b);
    }
    //echo implode(" ", $result_array)."\n";
    //fwrite(`$stderr, implode(" ", $`result_array)."\n");
}

foreach(`$result_array as $`value){
    `$sum += $`value;
    `$max = max($`sum, $max);
}
//echo($max);
//fwrite(`$stderr, $`max);
//fclose($stderr);

return $max;

}

$fptr = fopen(getenv("OUTPUT_PATH"), "w");

$stdin = fopen("php://stdin", "r");

fscanf(nm_temp); nm_temp);

nm[0]);

nm[1]);

$queries = array();

for (i < i++) { fscanf(queries_temp); queries_temp, -1, PREG_SPLIT_NO_EMPTY)); }

n, $queries);

fwrite(result . "\n");

fclose(fptr);