3v4l.org

run code in 300+ PHP versions simultaneously

@ 2017-04-06T16:44:59Z

<?php
error_reporting(-1);

$input = '243+6743-78*2=';
$inputLenght = mb_strlen($input);

$number = 0;
$result = 0;
$op = '';

for ($i = 0; $i < $inputLenght; $i++){
    $char = mb_substr($input, $i, 1);
    if ($char == '+' || $char == '-' || $char == '*' || $char == '='){
        if ($op == ''){
            reporting($op, $result, $number, $char);
            $result = $number;
        }else if ($op == '+'){
            reporting($op, $result, $number, $char);
            $result = $result + $number;
        }else if ($op == '-'){
            reporting($op, $result, $number, $char);
            $result = $result - $number;
        }else if ($op == '*'){
            reporting($op, $result, $number, $char);
            $result = $result * $number;
        }
        $op = $char;
        $number = 0;
    } elseif (is_numeric($char)){
        $number = $number * 10 + $char;
    } else {
        echo "Неверный символ: {$char}\n";
    }
}

echo "Ответ: {$input}{$result}\n";

function reporting($op, $result, $number, $char){
    echo "op = [{$op}], result = [{$result}], number = [{$number}], char = [{$char}]\n";
}

Output for 4.3.0 - 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 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14, 8.5.0: op = [], result = [0], number = [243], char = [+] op = [+], result = [243], number = [6743], char = [-] op = [-], result = [6986], number = [78], char = [*] op = [*], result = [6908], number = [2], char = [=] Ответ: 243+6743-78*2=13816
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

preferences:dark modelive previewkey bindings

226.66 ms | 408 KiB | 5 Q