处理AJAX发送HTML内容中标签反斜杠问题的教程

$( ".jsClickClaimsSendSH" ).click(function() {
    var ajaxurl = $(this).data("ajax");
    var action = 'claim_defects_breach_of_contract_send_mail';

    // ... 其他数据获取

    var subject = $("#claimsmailbodycontainer .claimssubjectbody").val();
    var mailbody = $("#claimsmailbodycontainer .claimsmailbody").val(); // 获取HTML内容

    $.ajax({
        type: "POST",
        url: ajaxurl,
        data: {
            action : action,
            claimtype : claimtype,
            leadID : leadID,
            uniqueid : uniqueid,
            subject : subject,
            mailbody : mailbody // 发送HTML内容
        },
        success: function( result ){
            // ... 成功处理
        }
    });         
});

$mailbody = $_POST['mailbody']; // 从$_POST中获取HTML内容

// ... 其他邮件头部设置

ob_start();
include_mail_template_php ($getPageLanguage.'/claimmail'); // 载入邮件模板
$message = ob_get_contents();
ob_end_clean(); 

// 替换邮件模板中的占位符
$variables = array(
    '%%text-body%%',
); 
$values = array(
    $mailbody
);
$message = str_replace( $variables, $values, $message );

wp_mail($empfaenger, $subject, $message, $headers); // 发送邮件

// ... (之前的PHP代码)

$mailbody = $_POST['mailbody'];
$mailbody = wp_unslash( $mailbody ); // 关键：剥离WordPress自动添加的反斜杠

$headers = [];
$headers[] = 'From: '.$mailFrom;
$headers[] = 'Reply-To: '.$mailReplyTo;        
$headers[] = 'Content-Type: text/html; charset=UTF-8'; // 确保邮件以HTML格式发送
$headers[] = 'X-Mailer: PHP/' . phpversion(); 

ob_start();
include_mail_template_php ($getPageLanguage.'/claimmail'); // 载入邮件模板
$message = ob_get_contents();
ob_end_clean(); 

// '%%text-body%%' 是邮件模板中 $mailbody 的占位符
$variables = array(
    '%%text-body%%',
); 

// 设置替换变量的值
$values = array(
    $mailbody // 使用已剥离斜杠的 $mailbody
);

$message = str_replace( $variables, $values, $message );

wp_mail($empfaenger, $subject, $message, $headers);

// ... (之前的PHP代码，包括str_replace)

$message = str_replace( $variables, $values, $message );
$message = wp_unslash( $message ); // 再次剥离反斜杠，确保最终邮件内容干净

wp_mail($empfaenger, $subject, $message, $headers);

// ... (AJAX请求的JavaScript部分保持不变)

// PHP函数接收邮件内容并发送
function claim_defects_breach_of_contract_send_mail() {
    // 确保接收到的数据存在
    if ( !isset( $_POST['mailbody'] ) || !isset( $_POST['subject'] ) ) {
        wp_send_json_error( 'Required data missing.' );
        return;
    }

    $mailbody = $_POST['mailbody'];
    // 核心修复：剥离WordPress可能自动添加的反斜杠
    $mailbody = wp_unslash( $mailbody ); 

    $subject = $_POST['subject'];
    $claimtype = $_POST['claimtype'];
    $leadID = $_POST['leadID'];
    $uniqueid = $_POST['uniqueid'];

    // 假设这些变量已正确定义或从配置中获取
    $mailFrom = 'sender@example.com'; 
    $mailReplyTo = 'replyto@example.com';
    $empfaenger = 'recipient@example.com';
    $getPageLanguage = 'en'; // 示例语言设置

    $headers = [];
    $headers[] = 'From: ' . $mailFrom;
    $headers[] = 'Reply-To: ' . $mailReplyTo;        
    $headers[] = 'Content-Type: text/html; charset=UTF-8'; // 关键：指定邮件内容为HTML
    $headers[] = 'X-Mailer: PHP/' . phpversion(); 

    ob_start();
    // 假设 include_mail_template_php 函数正确加载邮件模板文件
    include_mail_template_php( $getPageLanguage . '/claimmail' );
    $message = ob_get_contents();
    ob_end_clean(); 

    // '%%text-body%%' 是邮件模板中的占位符
    $variables = array(
        '%%text-body%%',
    ); 

    // 设置替换变量的值
    $values = array(
        $mailbody // 使用经过 wp_unslash 处理的 mailbody
    );

    $message = str_replace( $variables, $values, $message );

    // 发送邮件
    $mail_sent = wp_mail( $empfaenger, $subject, $message, $headers );

    if ( $mail_sent ) {
        wp_send_json_success( 'Mail sent successfully.' );
    } else {
        wp_send_json_error( 'Failed to send mail.' );
    }
}
// 确保此函数在WordPress AJAX钩子中注册，例如：
// add_action( 'wp_ajax_claim_defects_breach_of_contract_send_mail', 'claim_defects_breach_of_contract_send_mail' );
// add_action( 'wp_ajax_nopriv_claim_defects_breach_of_contract_send_mail', 'claim_defects_breach_of_contract_send_mail' );