PHP MySQL SELECT LIKE

Question

У меня есть 6 столбцов (здание, c1, c2, c3, c4, c5) с переменной длиной, разделенной на символ '&'.

Пример:

building = "Via Roma 1 ";

1007 * c1 =" C505061CC5BB7245216BB3E7EC7C52C6 & 50B43466133B7D8EC57B6A28727A9EF2 & F0F8659D443B6C36FAE628910DB58F69 ";

1009 * c2 =" 0206EE4050737803AB281ABAA3A229F5 ";

1011 * c3 =" E6D3E9584D7BEB648CC8E54E4A493770 ";

1013 * c4 ="944207DFB4267F08FA1D29296BDEBC86 & DDD4571450E56B7DEA5247B1E88DBD60 ";

c5 =" 6475CC1F4CD44798258A4798CEEA9E6C ";

* 1012,

1012, c *, 1016 * * *. Я попытался сделать это, используя «LIKE» со следующим кодом:

<?php
require('db.php');

if (isset($_POST['id']) && isset($_POST['value'])) {
    $output['post_parameters_error_flag'] = false;
}
else
{
    $output['post_parameters_error_flag'] = true;
    $output['message'] = "Bad POST parameters.";

    goto encode;
}

$conn=$dbh->prepare("SELECT value FROM authorized_devices WHERE value = :id");
$conn->execute(array(':id' => $_POST['id']));

if($conn->rowCount() === 1) {
    $conn=$dbh->prepare("SELECT building, c1 FROM source WHERE c1 LIKE :value");
    $conn->execute(array(':value' => "%{$_POST['value']}%"));

    if ($conn->rowCount() > 0) {
        $fetch = $conn->fetch(PDO::FETCH_ASSOC);

        $position = 0;

        if (strpos($fetch['c1'], '&') !== false) {
            $splitted_value = explode("&", $fetch['c1']);

            for ($i = 0; $i < sizeof($splitted_value); $i++) {
                if (strpos($splitted_value[$i], $_POST['value']) !== false) {
                    $position = $i;
                }
            }
        }

        $output['data_error_flag'] = false;
        $output['message'] = "Done.";
        $output['building'] = $fetch['building'];
        $output['type'] = "Value obtained from c1 column";
        $output['position'] = $position;

        goto encode;
    } else {
        $output['data_error_flag'] = true;
        $output['data_error_id'] = 1;
        $output['message'] = "No valid tag found.";

        goto encode;
    }

    $conn=$dbh->prepare("SELECT building, c2 FROM source WHERE c2 LIKE :value");
    $conn->execute(array(':value' => "%{$_POST['value']}%"));

    if ($conn->rowCount() > 0) {
        $fetch = $conn->fetch(PDO::FETCH_ASSOC);

        $position = 0;

        if (strpos($fetch['c2'], '&') !== false) {
            $splitted_value = explode("&", $fetch['c2']);

            for ($i = 0; $i < sizeof($splitted_value); $i++) {
                if (strpos($splitted_value[$i], $_POST['value']) !== false) {
                    $position = $i;
                }
            }
        }

        $output['data_error_flag'] = false;
        $output['message'] = "Done.";
        $output['building'] = $fetch['building'];
        $output['type'] = "Value obtained from c2 column";
        $output['position'] = $position;

        goto encode;
    } else {
        $output['data_error_flag'] = true;
        $output['data_error_id'] = 1;
        $output['message'] = "No valid tag found.";

        goto encode;
    }

    $conn=$dbh->prepare("SELECT building, c3 FROM source WHERE c3 LIKE :value");
    $conn->execute(array(':value' => "%{$_POST['value']}%"));

    if ($conn->rowCount() > 0) {
        $fetch = $conn->fetch(PDO::FETCH_ASSOC);

        $position = 0;

        if (strpos($fetch['c3'], '&') !== false) {
            $splitted_value = explode("&", $fetch['c3']);

            for ($i = 0; $i < sizeof($splitted_value); $i++) {
                if (strpos($splitted_value[$i], $_POST['value']) !== false) {
                    $position = $i;
                }
            }
        }

        $output['data_error_flag'] = false;
        $output['message'] = "Done.";
        $output['building'] = $fetch['building'];
        $output['type'] = "Value obtained from c3 column";
        $output['position'] = $position;

        goto encode;
    } else {
        $output['data_error_flag'] = true;
        $output['data_error_id'] = 1;
        $output['message'] = "No valid tag found.";

        goto encode;
    }

    $conn=$dbh->prepare("SELECT building, c4 FROM source WHERE c4 LIKE :value");
    $conn->execute(array(':value' => "%{$_POST['value']}%"));

    if ($conn->rowCount() > 0) {
        $fetch = $conn->fetch(PDO::FETCH_ASSOC);

        $position = 0;

        if (strpos($fetch['c4'], '&') !== false) {
            $splitted_value = explode("&", $fetch['c4']);

            for ($i = 0; $i < sizeof($splitted_value); $i++) {
                if (strpos($splitted_value[$i], $_POST['value']) !== false) {
                    $position = $i;
                }
            }
        }

        $output['data_error_flag'] = false;
        $output['message'] = "Done.";
        $output['building'] = $fetch['building'];
        $output['type'] = "Value obtained from c4 column";
        $output['position'] = $position;

        goto encode;
    } else {
        $output['data_error_flag'] = true;
        $output['data_error_id'] = 1;
        $output['message'] = "No valid tag found.";

        goto encode;
    }

    $conn=$dbh->prepare("SELECT building, c5 FROM source WHERE c5 LIKE :value");
    $conn->execute(array(':value' => "%{$_POST['value']}%"));

    if ($conn->rowCount() > 0) {
        $fetch = $conn->fetch(PDO::FETCH_ASSOC);

        $position = 0;

        if (strpos($fetch['c5'], '&') !== false) {
            $splitted_value = explode("&", $fetch['c5']);

            for ($i = 0; $i < sizeof($splitted_value); $i++) {
                if (strpos($splitted_value[$i], $_POST['value']) !== false) {
                    $position = $i;
                }
            }
        }

        $output['data_error_flag'] = false;
        $output['message'] = "Done.";
        $output['building'] = $fetch['building'];
        $output['type'] = "Value obtained from c5 column";
        $output['position'] = $position;

        goto encode;
    } else {
        $output['data_error_flag'] = true;
        $output['data_error_id'] = 1;
        $output['message'] = "No valid tag found.";

        goto encode;
    }
} else {
    $output['data_error_flag'] = true;
    $output['data_error_id'] = 2;
    $output['message'] = "Unknown device.";

    goto encode;
}

encode:
die(json_encode($output));
?>

Но это работает только с некоторыми примерами полей. Любые допустимые альтернативы "LIKE"?

Вывод должен быть:

{
    "post_parameters_error_flag": false,
    "data_error_flag": false,
    "message": "Done.",
    "building": "Via Roma 1",
    "type": "obtained from c1",
    "position": 1
}

С $ _POST ['value'] => "50B43466133B7D8EC57B6A28727A9EF2"