HTML5 PHP表单赢得'；不发送

我已经从以前的表单构建中修改了一些新字段，这些字段工作得很好。客户端验证工作正常，但由于电子邮件无法发送，它们似乎是一个php问题

我仍在学习PHP和表单，所以任何帮助都将是ace

请从页面和下面的php中获取相关代码

页面

    <div id="contact-form" class="clearfix">
        <h1>SWPEE certificate</h1><br>
        <?php
        //init variables
        $cf = array();
        $sr = false;

        if(isset($_SESSION['cf_returndata'])){
            $cf = $_SESSION['cf_returndata'];
            $sr = true;
        }
        ?>
        <ul id="errors" class="<?php echo ($sr && !$cf['form_ok']) ? 'visible' : ''; ?>">
            <li id="info">There were some problems with your form submission:</li>
            <?php 
            if(isset($cf['errors']) && count($cf['errors']) > 0) :
                foreach($cf['errors'] as $error) :
            ?>
            <li><?php echo $error ?></li>
            <?php
                endforeach;
            endif;
            ?>
        </ul>
        <p id="success" class="<?php echo ($sr && $cf['form_ok']) ? 'visible' : ''; ?>">Thanks you. Your information has been submitted.</p>
        <form method="post" action="process2.php">
            <label for="firstname">First Name: <span class="required">*</span></label>
            <input type="text" id="firstname" name="first name" value="<?php echo ($sr && !$cf['form_ok']) ? $cf['posted_form_data']['first name'] : '' ?>" placeholder="First Name" required autofocus />

            <label for="surname">Surname: <span class="required">*</span></label>
            <input type="text" id="surname" name="surname" value="<?php echo ($sr && !$cf['form_ok']) ? $cf['posted_form_data']['surname'] : '' ?>" placeholder="Surname" required autofocus />

            <label for="jobtitle">Job title: <span class="required">*</span></label>
            <input type="text" id="jobtitle" name="job title" value="<?php echo ($sr && !$cf['form_ok']) ? $cf['posted_form_data']['job title'] : '' ?>" placeholder="Job title" required autofocus />

            <label for="office">Office location:</label>
            <select id="office" name="office">
                <option value="Birmingham" <?php echo ($sr && !$cf['form_ok'] && $cf['posted_form_data']['office'] == 'Birmingham') ? "selected='selected'" : '' ?>>Birmingham</option>
                <option value="Chippenham" <?php echo ($sr && !$cf['form_ok'] && $cf['posted_form_data']['office'] == 'Chippenham') ? "selected='selected'" : '' ?>>Chippenham</option>
                <option value="Croyden" <?php echo ($sr && !$cf['form_ok'] && $cf['posted_form_data']['office'] == 'Croyden') ? "selected='selected'" : '' ?>>Croyden</option>
                <option value="Glasgow" <?php echo ($sr && !$cf['form_ok'] && $cf['posted_form_data']['office'] == 'Glasgow') ? "selected='selected'" : '' ?>>Glasgow</option>
                <option value="Hornsey" <?php echo ($sr && !$cf['form_ok'] && $cf['posted_form_data']['office'] == 'Hornsey') ? "selected='selected'" : '' ?>>Hornsey</option>
                <option value="London" <?php echo ($sr && !$cf['form_ok'] && $cf['posted_form_data']['office'] == 'London') ? "selected='selected'" : '' ?>>London</option>
                <option value="Swanley" <?php echo ($sr && !$cf['form_ok'] && $cf['posted_form_data']['office'] == 'Swanley') ? "selected='selected'" : '' ?>>Swanley</option>
                <option value="York" <?php echo ($sr && !$cf['form_ok'] && $cf['posted_form_data']['office'] == 'York') ? "selected='selected'" : '' ?>>York</option>
            </select>

            <label for="emp_con">Employee or Contractor:</label>
            <select id="emp_con" name="emp_con">
            <option value="Employee" <?php echo ($sr && !$cf['form_ok'] && $cf['posted_form_data']['cmp_con'] == 'Employee') ? "selected='selected'" : '' ?>>Employee</option>
                <option value="Contractor" <?php echo ($sr && !$cf['form_ok'] && $cf['posted_form_data']['cmp_con'] == 'Contractor') ? "selected='selected'" : '' ?>>Contractor</option>
            </select>

            <label for="course_module">Course or Module: <span class="required">*</span></label>
            <input type="text" id="course_module" name="course module" value="<?php echo ($sr && !$cf['form_ok']) ? $cf['posted_form_data']['course module'] : '' ?>" placeholder="Course or Module name" required autofocus />

            <label for="date">Date Course or Module was completed: <span class="required">*</span></label>
            <input type="text" id="date_completed" name="date completed" value="<?php echo ($sr && !$cf['form_ok']) ? $cf['posted_form_data']['date completed'] : '' ?>" placeholder="23/7/2012" required autofocus />

            <label for="line_manager">Line Manager: <span class="required">*</span></label>
            <input type="text" id="line_manager" name="line manager" value="<?php echo ($sr && !$cf['form_ok']) ? $cf['posted_form_data']['line manager'] : '' ?>" placeholder="Line Manager" required autofocus />

            <span id="loading"></span>
            <input type="submit" value="Submit" id="submit-button" />
            <p id="req-field-desc"><span class="required">*</span> indicates a required field</p>
        </form>
        <?php unset($_SESSION['cf_returndata']); ?>
    </div>

SWPEE证书

尝试将$surename更改为$Lastname

if(empty($surname)){
    $formok = false;
    $errors[] = "You have not entered your surname";
}

编辑：哇，我不知道这是多久前发布的。抱歉，这只是和我的问题有关，所以我快速看了一下，发现了一个错误
 当你说它不发送。。。它有什么作用？如果调试代码，在什么情况下它会偏离预期行为？它甚至连发送电子邮件的线路都到了吗？若否，原因为何？它以什么方式失败？尝试调试php:error\u reporting（E\u ALL）；formok==true是否在正确的位置？它返回姓氏字段的错误消息。即使这是正确的，jQuery也会很好地验证它。这将阻止表单的发布。这一切都有点大，有点吓人！
if(empty($surename)){
    $formok = false;
    $errors[] = "You have not entered your surname";
}

if(empty($surname)){
    $formok = false;
    $errors[] = "You have not entered your surname";
}