在提交表单和验证开始之前，有没有办法将左右单引号转换为撇号？
我问的原因是我的表单在所有平台上都能正常运行，但iPhone用户有时使用错误的字符并输入左或右单引号。由于我的表单验证输入的数据并且必须准确，因此左侧单引号被视为与DB表中的撇号相比的错误，并且不接受该信息。
如果我可以在用户提交撇号时转换这些字符，那么即使在iPhone上也能正常工作。我会非常感激任何见解，我尝试了一些像htmlspecialchar这样的项目，但似乎并没有帮助。
另外我应该注意，当使用iPhone并在ios11上的智能键盘布局中输入coorect撇号时，我能够成功通过表单验证。这似乎是苹果的一个已知问题，但他们还没有纠正这个问题，我相信如果我们能找到答案，我希望这个解决方案对社区中的许多人都有益。
相关表单字段为：
<input type="text" name="last_name" id="last_name" value="<?php echo htmlspecialchars(stripslashes(isset($fields['last_name'])) ? $fields['last_name'] : '') ?>" >
如何设置此表单字段以使用php或jquery将左右单引号转换为表单提交中的撇号？
更新
@fubar今晚你是我的救世主。第一个解决方案很有效。但是我如何添加第二个选项呢？
function cv(&$fields, &$errors) {
// Check args and replace if necessary
if (!is_array($fields)) $fields = array();
if (!is_wp_error($errors)) $errors = new WP_Error;
// Check for form submit
if (isset($_POST['submit'])) {
// Get fields from submitted form
$fields = cv_get_fields();
// Validate fields and produce errors
if (cv_validate($fields, $errors)) {
// If successful, display a message
$Id=$fields['login'];
$First=$fields['first_name'];
$Last=$fields['last_name'];
global $wpdb;
$user = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM users WHERE login = %s", $Id ) );
$userquery = $wpdb->get_results($user->login);
$Id=$fields['login'];
if ( !username_exists ($Id)) {
$Id=$fields['login'];
$access = $wpdb->get_row( $wpdb->prepare( "SELECT access FROM table WHERE ID = %s", $Id ) );
foreach ($access as $accessquery) {
if ($accessquery == lvl2) {
$_SESSION['mem_data']=$fields;
header("Location: https://example.com/lvl2-register/");
}
if ( is_null ($accessquery)) {
$_SESSION['mem_data']=$fields;
header("Location: https://example.com/lvl1-register/");
}
}
}
elseif ( username_exists ($Id)) {
header("Location: https://example.com/already-registered/");
}
}
}
// Santitize fields
cv_sanitize($fields);
// Generate form
cv_display_form($fields, $errors);
}
function cv_sanitize(&$fields) {
$fields['login'] = isset($fields['login']) ? sanitize_user($fields['login']) : '';
$fields['first_name'] = isset($fields['first_name']) ? sanitize_text_field($fields['first_name']) : '';
$fields['last_name'] = isset($fields['last_name']) ? sanitize_text_field($fields['last_name']) : '';
}
function cv_display_form($fields = array(), $errors = null) {
// Check for wp error obj and see if it has any errors
if (is_wp_error($errors) && count($errors->get_error_messages()) > 0) {
// Display errors
?>
<div class="step1-form" style="display:block;margin:0 auto;text-align:left;max-width:1080px;">
<?php
foreach ($errors->get_error_messages() as $key => $val) {
?><p>
<?php echo $val; ?>
</p><?php
}
?><?php
}
// Display form
?>
</div>
<div class="step1-form" style="display:block;margin:0 auto;text-align:left;max-width:1080px;">
<h1 class="til-postheader entry-title">User Registration: Step 1 of 2</h1>
<h4>Prior to registering for this website you must first verify Your Membership.<h4>
<div id="login" style="max-width:175px;width:100%;margin:10px;">
<form action="" method="post">
<div>
<label for="first_name">First Name:</label><br>
<input type="text" name="first_name" id="first_name" value="<?php echo (isset($fields['first_name']) ? $fields['first_name'] : '') ?>" >
</div>
<br>
<div>
<label for="last_name">Last Name:</label><br>
<input type="text" name="last_name" id="last_name" value="<?php echo htmlspecialchars(stripslashes(isset($fields['last_name'])) ? $fields['last_name'] : '') ?>" >
</div>
<br>
<div>
<a data-fancybox data-src="#ID" href="javascript:;" style="outline:none;border:0px;text-decoration:none;" tabindex="-1"><span style="width:21px;float:right;color:#ffffff;background:#0a4b73;text-align:center;line-height:21px;border-radius:50%;" tabindex="-1">?</span></a><label for="login">Member ID:</label><br>
<input type="text" name="login" id="login" value="<?php echo (isset($fields['login']) ? $fields['login'] : '') ?>" >
</div>
<br>
<input type="submit" name="submit" value="Verify Membership">
</form>
</div>
<?php
}
function cv_get_fields() {
return array(
'login' => isset($_POST['login']) ? $_POST['login'] : '',
'first_name' => isset($_POST['first_name']) ? $_POST['first_name'] : '',
'last_name' => isset($_POST['last_name']) ? $_POST['last_name'] : '',
);
}
function cv_validate(&$fields, &$errors) {
// Make sure there is a proper wp error obj
// If not, make one
if (!is_wp_error($errors)) $errors = new WP_Error;
// Validate form data
// Define $Card $First $Last $PIN
$Id=$fields['login'];
$First=$fields['first_name'];
$Last=$fields['last_name'];
// $Lastname = htmlspecialchars_decode(stripslashes($fields["last_name"]));
$Lastname = '‘ ‘ - ’ ’';
$Lastname = str_replace(['‘', '’'], "'", html_entity_decode(stripslashes($fields["last_name"])));
global $wpdb;
$result = $wpdb->get_row( $wpdb->prepare( 'SELECT distinct ID, First, Last, FROM table WHERE ID = %s AND First = "%s" AND Last = "%s", $Id, $First, $Lastname ) );
if ( is_null ( $result ) ) {
$errors->add('non_member', 'The information entered does not match our records.');
}
if (empty($fields['login']) || empty($fields['first_name']) || empty($fields['last_name'])) {
$errors->add('field', '');
}
// If errors were produced, fail
if (count($errors->get_error_messages()) > 0) {
return false;
}
$Id=$fields['login'];
global $wpdb;
$accessno = $wpdb->get_row( $wpdb->prepare( "SELECT distinct access FROM table WHERE ID = %s", $Id ) );
foreach ($accessno as $noquery) {
if ( $noquery == NO) {
header ('Location: https://example.com/access-denied/');
}
}
// Else, success!
return true;
}
// The callback function for the [cv] shortcode
function cv_cb() {
$fields = array();
$errors = new WP_Error();
// Buffer output
ob_start();
// Custom verification, go!
cv($fields, $errors);
// Return buffer
return ob_get_clean();
}
add_shortcode('cv', 'cv_cb');
答案 0 :(得分：1)
这会将原始和编码的单引号转换为撇号。
$value = '‘ ‘ - ’ ’';
$value = str_replace(['‘', '’'], "'", html_entity_decode($value));
如果要将其应用于所有POST数据，可以使用：
$_POST = array_map(function ($value) {
return str_replace(['‘', '’'], "'", html_entity_decode($value));
}, $_POST);
修改
如果您替换以下行：
// Get fields from submitted form
$fields = cv_get_fields();
使用：
// Get fields from submitted form
$fields = array_map(function ($value) {
return str_replace(['‘', '’'], "'", html_entity_decode($value));
}, cv_get_fields());
然后你可以删除以下内容：
$Lastname = '‘ ‘ - ’ ’';
$Lastname = str_replace(['‘', '’'], "'", html_entity_decode(stripslashes($fields["last_name"])));