dongquanyu5816 2016-06-08 21:04
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在php中通过post方法更改url

I'm trying to change the url path by submited form...

index.php

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
    </head>
    <body>
        <?php include 'file.php'; ?>
        <form action=<?php action(); ?> method="post">
            <fieldset>
                <legend>Choose ID by select tag</legend>
                <label>ID:</label>
                <select name="id" onchange="this.form.submit()">
                    <?php option(); ?>
                </select>
                <label><?php selcet(); ?></label>
            </fieldset>
        </form>
    </body>
</html>

file.php

<?php

function action() {
    $value = $_SERVER['PHP_SELF'];

    if (isset($_POST['id'])) {
        $value .= '?id=' . $_POST['id'];
    }

    echo $value;
}

function option() {
    $count = 3;

    for ($i = 1; $i <= $count; $i++) {
        $value = 1;

        if (isset($_POST['id'])) {
            $value = $_POST['id'];
        }

        if ($i == $value) {
            echo '<option value="' . $i . '" selected>' . $i . '</option>';
        }
        else {
            echo '<option value="' . $i . '">' . $i . '</option>';
        }
    }
}

function selcet() {
    $value = 1;

    if (isset($_POST['id'])) {
        $value = $_POST['id'];
    }

    echo 'Option ' . $value . ' selected.';
}

?>

the action() function not working as well, I'm getting wrong ids, I want to get ?id=2 while '2' selected.

Can someone help me please? Thanks! :)

  • 写回答

1条回答 默认 最新

  • dongzhi6463 2016-06-08 21:16
    关注

    To achieve your original request:

    [...] I want to get ?id=2 while '2' selected.

    You need to use GET not POST for the easiest and fastest results.

    index.php

    <?php include 'file.php'; ?>
<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
    </head>
    <body>
        <form action="<?php echo active(); ?>" method="GET">
            <fieldset>
                <legend>Choose ID by select tag</legend>
                <label>ID:</label>
                <select name="id" onchange="this.form.submit()">
                    <?php echo option(); ?>
                </select>
                <label><?php echo select(); ?></label>
            </fieldset>
        </form>
    </body>
</html>

    file.php

    <?php
function active() {
    $value = $_SERVER['PHP_SELF'];
    if (isset($_GET['id'])) {
        $value .= '?id=' . $_GET['id'];
    }
    return $value;
}

function option() {
    $count = 3;
    for ($i = 1; $i <= $count; $i++) {
        $value = 1;
        if (isset($_GET['id'])) {
            $value = $_GET['id'];
        }
        if ($i == $value) {
            echo '<option value="' . $i . '" selected>' . $i . '</option>';
        }
        else {
            echo '<option value="' . $i . '">' . $i . '</option>';
        }
    }
}

function select() {
    $value = 1;
    if (isset($_GET['id'])) {
        $value = $_GET['id'];
    }
    return 'Option ' . $value . ' selected.';
}
?>
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论

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