Question

我希望将2个$_POST数组值相互相乘，并将echo与提交时的总和相乘。

在这种情况下，它应该是$_POST['vindue1']和$_POST['quantity']

我试过了：

echo "<p><strong>Your price:  </strong>" . $_POST['vindue1'] * $_POST['quantity']. " Kr. </p>";

CODE：

<form action="" method="POST">
<div class="dropdown-option">
    <select id="select" name="vindue1">
        <option value="" >VÆLG POLERINGSTYPE</option>
        <option value="60" <?php if(isset($_POST['vindue1']) &&  $_POST['vindue1'] == '60'){ echo 'selected'; } else { echo ''; } ?>>INDVENDIG + UDVENDIG</option>
        <option value="40" <?php if(isset($_POST['vindue1']) &&  $_POST['vindue1'] == '40'){ echo 'selected'; } else { echo ''; } ?>>UDVENDIG</option>
        <option value="40" <?php if(isset($_POST['vindue1']) &&  $_POST['vindue1'] == '40'){ echo 'selected'; } else { echo ''; } ?>>INDVENDIG</option>
        <option value="85" <?php if(isset($_POST['vindue1']) &&  $_POST['vindue1'] == '85'){ echo 'selected'; } else { echo ''; } ?>>FORSATS (INKL. INDVENDIG + UDVENDIG)</option>
    </select>
</div>

<div class="quantity-field">
    <input type="number" name="quantity" min="0" max="100" placeholder="STK.">
</div>

<div class="dropdown-option">
    <select id="select" name="vindue2">
        <option value="" selected>VÆLG POLERINGSTYPE</option>
        <option value="90" <?php if(isset($_POST['vindue2']) &&  $_POST['vindue2'] == '60'){ echo 'selected'; } else { echo ''; } ?>>INDVENDIG + UDVENDIG</option>
        <option value="65" <?php if(isset($_POST['vindue2']) &&  $_POST['vindue2'] == '60'){ echo 'selected'; } else { echo ''; } ?>>UDVENDIG</option>
        <option value="65" <?php if(isset($_POST['vindue2']) &&  $_POST['vindue2'] == '60'){ echo 'selected'; } else { echo ''; } ?>>INDVENDIG</option>
        <option value="125" <?php if(isset($_POST['vindue2']) &&  $_POST['vindue2'] == '60'){ echo 'selected'; } else { echo ''; } ?>>FORSATS (INKL. INDVENDIG + UDVENDIG)</option>
    </select>

<div class="quantity-field">
        <input type="number" name="quantity" min="0" max="100" placeholder="STK.">
 </div>

<div class="row contact-form-pris">                     
    <div class="large-6 small-12 columns">
        <label for="first_name">Fornavn *</label>
        <input class="" name="first_name" id="first_name" type="text" required/>
    </div>
    <div class="large-6 small-12 columns">
        <label for="last_name">Efternavn *</label>
        <input class="" name="last_name" id="last_name" type="text" required/>
    </div>
    <div class="large-12 columns">
        <label for="address_street">Adresse *</label>
        <input class="" name="address_street" id="address_street" type="text" required/>    
    </div>
    <div class="large-6 small-12 columns">
        <label for="email_address">Email *</label>
        <input class="" name="email_address" id="email_address" type="email" required/>
    </div>
    <div class="large-6 small-12 columns">
        <label for="mobile_no">Telefon *</label>
        <input class="" name="mobile_no" id="mobile_no" type="tel" required/>
    </div>
    <div class="large-12 columns text-center">
        <input type="submit" name="submit" value="MODTAG UFORPLIGTENDE TILBUD" class="submit-pris">
    </div>
</div>

Answer 1

添加括号并使用intval()功能像这样：echo "<p><strong>Your price: </strong>" . (intval($_POST['vindue1']) * intval($_POST['quantity'])). " Kr. </p>";

乘法2 $ _POST数组

1 个答案: