php-sqlsrv/test/functional/pdo_sqlsrv/pdo_prepare_emulatePrepare_float.phpt

--TEST--
prepare with emulate prepare and binding integer
--DESCRIPTION--
This test is similar to pdo_prepare_emulatePrepare_decimal.phpt and
pdo_prepare_emulatePrepare_money.phpt but binding parameters with
floating point numbers. However, checking equality of floating point
numbers may not guarantee same results across platforms. Incorrect
results often occurred with implicit rounding when converting string
to floats.
See https://news-web.php.net/php.internals/11502 for in-depth explanation.
--SKIPIF--
<?php require('skipif_mid-refactor.inc'); ?>
--FILE--
<?php
require_once('MsCommon_mid-refactor.inc');

function printRow($row, $inputValues)
{
    if (empty($row)) {
        return; // do nothing
    }

    $key = 'c3_float';
    if (!compareFloats($inputValues[$key], $row[$key])) {
        echo "Expected $inputValues[$key] but got $row[$key]\n";
    }
    // should not expect the floats to exactly match, so
    // remove the last element from the array for printing
    array_pop($row);
    print_r($row);
}

try {
    $conn = connect("", array(), PDO::ERRMODE_SILENT);

    $tableName = "number_types";
    if (!isAEConnected()) {
        createTable($conn, $tableName, array("c1_decimal" => "decimal", "c2_money" => "money", "c3_float" => "float"));
    } else {
        // money is not supported for column encryption, use decimal(19,4) instead
        createTable($conn, $tableName, array("c1_decimal" => "decimal", "c2_money" => "decimal(19,4)", "c3_float" => "float"));
    }

    $inputValues = array( array('c1_decimal' => '411.1', 'c2_money' => '131.11', 'c3_float' => 611.111),
                          array('c1_decimal' => '422.2222', 'c2_money' => '132.222', 'c3_float' => 622.22),
                          array('c1_decimal' => '433.333', 'c2_money' => '133.3333', 'c3_float' => 633.33333));

    for ($i = 0; $i < count($inputValues); $i++) {
        insertRow($conn, $tableName, $inputValues[$i]);
    }

    // With data encrypted, there will be no conversion
    if (isColEncrypted()) {
        $query = "SELECT * FROM [$tableName] WHERE c3_float = :c3";
    } else {
        $query = "SELECT * FROM [$tableName] WHERE c3_float < :c3";
    }

    // prepare without emulate prepare
    print_r("Prepare without emulate prepare:\n");
    $options = array(PDO::ATTR_EMULATE_PREPARES => false);
    $stmt = $conn->prepare($query, $options);
    $c3 = (isColEncrypted())? 611.111 : 620.00;
    $stmt->bindParam(':c3', $c3);
    $stmt->execute();
    $row = $stmt->fetch(PDO::FETCH_ASSOC);
    printRow($row, $inputValues[0]);

    //with emulate prepare and no bind param options
    print_r("Prepare with emulate prepare and no bind param options:\n");
    if (!isAEConnected()) {
        // emulate prepare is not supported for encrypted columns
        $options = array(PDO::ATTR_EMULATE_PREPARES => true);
    }
    $stmt = $conn->prepare($query, $options);
    $stmt->bindParam(':c3', $c3);
    $stmt->execute();
    $row = $stmt->fetch(PDO::FETCH_ASSOC);
    printRow($row, $inputValues[0]);

    //with emulate prepare and encoding SQLSRV_ENCODING_SYSTEM
    print_r("Prepare with emulate prepare and SQLSRV_ENCODING_SYSTEM:\n");
    $stmt = $conn->prepare($query, $options);
    $stmt->bindParam(':c3', $c3, PDO::PARAM_STR, 0, PDO::SQLSRV_ENCODING_SYSTEM);
    $stmt->execute();
    $row = $stmt->fetch(PDO::FETCH_ASSOC);
    printRow($row, $inputValues[0]);

    //prepare with emulate prepare and encoding SQLSRV_ENCODING_UTF8
    print_r("Prepare with emulate prepare and SQLSRV_ENCODING_UTF8:\n");
    $stmt = $conn->prepare($query, $options);
    $stmt->bindParam(':c3', $c3, PDO::PARAM_STR, 0, PDO::SQLSRV_ENCODING_UTF8);
    $stmt->execute();
    $row = $stmt->fetch(PDO::FETCH_ASSOC);
    printRow($row, $inputValues[0]);

    //prepare with emulate prepare and encoding SQLSRV_ENCODING_BINARY
    print_r("Prepare with emulate prepare and SQLSRV_ENCODING_BINARY:\n");
    $stmt = $conn->prepare($query, $options);
    $stmt->bindParam(':c3', $c3, PDO::PARAM_STR, 0, PDO::SQLSRV_ENCODING_BINARY);
    $stmt->execute();
    $row = $stmt->fetch(PDO::FETCH_ASSOC);
    printRow($row, $inputValues[0]);
    if ($stmt->rowCount() == 0) {
        print_r("No results for this query\n");
    }
    dropTable($conn, $tableName);
    unset($stmt);
    unset($conn);
} catch (PDOException $e) {
    var_dump($e->errorInfo);
}
?>

--EXPECTF--
Prepare without emulate prepare:
Array
(
    [c1_decimal] => 411
    [c2_money] => 131.1100
)
Prepare with emulate prepare and no bind param options:
Array
(
    [c1_decimal] => 411
    [c2_money] => 131.1100
)
Prepare with emulate prepare and SQLSRV_ENCODING_SYSTEM:
Array
(
    [c1_decimal] => 411
    [c2_money] => 131.1100
)
Prepare with emulate prepare and SQLSRV_ENCODING_UTF8:
Array
(
    [c1_decimal] => 411
    [c2_money] => 131.1100
)
Prepare with emulate prepare and SQLSRV_ENCODING_BINARY:
No results for this query