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class-form-email-handler.php
527 lines
| 1 | <?php |
| 2 | |
| 3 | namespace SuperbAddons\Gutenberg\Form; |
| 4 | |
| 5 | defined('ABSPATH') || exit(); |
| 6 | |
| 7 | class FormEmailHandler |
| 8 | { |
| 9 | /** |
| 10 | * Track the last wp_mail_failed error for status capture. |
| 11 | */ |
| 12 | private static $last_mail_error = null; |
| 13 | |
| 14 | /** |
| 15 | * Send admin notification email. |
| 16 | * |
| 17 | * @param array $form_data Form configuration |
| 18 | * @param array $fields Submitted field data (field_id => value) |
| 19 | * @param int $post_id Optional submission post ID for status tracking |
| 20 | * @return bool |
| 21 | */ |
| 22 | public static function SendAdminNotification($form_data, $fields, $post_id = 0) |
| 23 | { |
| 24 | $to_raw = !empty($form_data['email_to']) ? $form_data['email_to'] : get_option('admin_email'); |
| 25 | $to = array_filter(array_map(function ($email) { |
| 26 | return sanitize_email(trim($email)); |
| 27 | }, explode(',', $to_raw)), 'is_email'); |
| 28 | if (empty($to)) { |
| 29 | return false; |
| 30 | } |
| 31 | $subject = self::ProcessMergeTags( |
| 32 | !empty($form_data['email_subject']) ? $form_data['email_subject'] : __('New form submission', 'superb-blocks'), |
| 33 | $form_data, |
| 34 | $fields |
| 35 | ); |
| 36 | |
| 37 | // Annotate file fields with attach/too-large flags and collect the file |
| 38 | // paths that fit within the total email-attachment budget. BuildEmailBody |
| 39 | // reads the flags, so this must run before the body is built. |
| 40 | list($fields, $attachments) = self::PrepareAttachments($fields, $form_data); |
| 41 | |
| 42 | $body = self::BuildEmailBody($form_data, $fields); |
| 43 | $headers = array('Content-Type: text/html; charset=UTF-8'); |
| 44 | |
| 45 | // From name/email: form-level -> global default -> WordPress default |
| 46 | $from_name = self::ResolveFromName($form_data); |
| 47 | $from_email = self::ResolveFromEmail($form_data); |
| 48 | if (!empty($from_email) && is_email($from_email)) { |
| 49 | $from_header = !empty($from_name) ? ($from_name . ' <' . $from_email . '>') : $from_email; |
| 50 | $headers[] = 'From: ' . $from_header; |
| 51 | } |
| 52 | |
| 53 | $form_fields = isset($form_data['form_fields']) ? $form_data['form_fields'] : array(); |
| 54 | |
| 55 | if (!empty($form_data['email_reply_to'])) { |
| 56 | $reply_to_value = self::FindFieldValue($fields, $form_data['email_reply_to'], $form_fields); |
| 57 | if (!empty($reply_to_value) && is_email($reply_to_value)) { |
| 58 | $headers[] = 'Reply-To: ' . sanitize_email($reply_to_value); |
| 59 | } |
| 60 | } |
| 61 | |
| 62 | if (!empty($form_data['email_cc'])) { |
| 63 | $cc_emails = array_map('trim', explode(',', $form_data['email_cc'])); |
| 64 | foreach ($cc_emails as $cc) { |
| 65 | if (is_email($cc)) { |
| 66 | $headers[] = 'Cc: ' . sanitize_email($cc); |
| 67 | } |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | if (!empty($form_data['email_bcc'])) { |
| 72 | $bcc_emails = array_map('trim', explode(',', $form_data['email_bcc'])); |
| 73 | foreach ($bcc_emails as $bcc) { |
| 74 | if (is_email($bcc)) { |
| 75 | $headers[] = 'Bcc: ' . sanitize_email($bcc); |
| 76 | } |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | self::$last_mail_error = null; |
| 81 | add_action('wp_mail_failed', array(__CLASS__, 'CaptureMailError')); |
| 82 | $result = wp_mail($to, $subject, $body, $headers, $attachments); |
| 83 | remove_action('wp_mail_failed', array(__CLASS__, 'CaptureMailError')); |
| 84 | |
| 85 | if ($post_id > 0) { |
| 86 | self::UpdateEmailStatus($post_id, 'admin', $result, self::$last_mail_error); |
| 87 | } |
| 88 | |
| 89 | return $result; |
| 90 | } |
| 91 | |
| 92 | /** |
| 93 | * Send confirmation email to the form submitter. |
| 94 | * |
| 95 | * @param array $form_data Form configuration |
| 96 | * @param array $fields Submitted field data |
| 97 | * @param int $post_id Optional submission post ID for status tracking |
| 98 | * @return bool |
| 99 | */ |
| 100 | public static function SendConfirmation($form_data, $fields, $post_id = 0) |
| 101 | { |
| 102 | $form_fields = isset($form_data['form_fields']) ? $form_data['form_fields'] : array(); |
| 103 | |
| 104 | // Find the email field value — use configured field if set, otherwise auto-detect |
| 105 | $user_email = ''; |
| 106 | if (!empty($form_data['confirmation_email_field'])) { |
| 107 | $found = self::FindFieldValue($fields, $form_data['confirmation_email_field'], $form_fields); |
| 108 | if (!empty($found) && is_email($found)) { |
| 109 | $user_email = $found; |
| 110 | } |
| 111 | } |
| 112 | // Fallback: auto-detect first email value |
| 113 | if (empty($user_email)) { |
| 114 | foreach ($fields as $field_id => $value) { |
| 115 | if (is_email($value)) { |
| 116 | $user_email = $value; |
| 117 | break; |
| 118 | } |
| 119 | } |
| 120 | } |
| 121 | |
| 122 | if (empty($user_email)) { |
| 123 | return false; |
| 124 | } |
| 125 | |
| 126 | $subject = self::ProcessMergeTags( |
| 127 | !empty($form_data['confirmation_subject']) ? $form_data['confirmation_subject'] : __('We received your submission', 'superb-blocks'), |
| 128 | $form_data, |
| 129 | $fields |
| 130 | ); |
| 131 | |
| 132 | $message = self::ProcessMergeTags( |
| 133 | !empty($form_data['confirmation_message']) ? $form_data['confirmation_message'] : __('Thank you for your submission.', 'superb-blocks'), |
| 134 | $form_data, |
| 135 | $fields, |
| 136 | true // Escape for HTML email body |
| 137 | ); |
| 138 | |
| 139 | // The message is authored in a plain textarea, so its newlines carry the |
| 140 | // intended spacing. The body is sent as text/html, where newlines collapse |
| 141 | // to spaces, so convert them to <br> the way the editor preview does. |
| 142 | $body = self::WrapInTemplate(nl2br($message)); |
| 143 | $headers = array('Content-Type: text/html; charset=UTF-8'); |
| 144 | |
| 145 | // From name/email: form-level -> global default -> WordPress default |
| 146 | $from_name = self::ResolveFromName($form_data); |
| 147 | $from_email = self::ResolveFromEmail($form_data); |
| 148 | if (!empty($from_email) && is_email($from_email)) { |
| 149 | $from_header = !empty($from_name) ? ($from_name . ' <' . $from_email . '>') : $from_email; |
| 150 | $headers[] = 'From: ' . $from_header; |
| 151 | } |
| 152 | |
| 153 | self::$last_mail_error = null; |
| 154 | add_action('wp_mail_failed', array(__CLASS__, 'CaptureMailError')); |
| 155 | $result = wp_mail(sanitize_email($user_email), $subject, $body, $headers); |
| 156 | remove_action('wp_mail_failed', array(__CLASS__, 'CaptureMailError')); |
| 157 | |
| 158 | if ($post_id > 0) { |
| 159 | self::UpdateEmailStatus($post_id, 'user', $result, self::$last_mail_error); |
| 160 | } |
| 161 | |
| 162 | return $result; |
| 163 | } |
| 164 | |
| 165 | /** |
| 166 | * Capture wp_mail_failed error for status tracking. |
| 167 | * |
| 168 | * @param \WP_Error $error |
| 169 | */ |
| 170 | public static function CaptureMailError($error) |
| 171 | { |
| 172 | if (is_wp_error($error)) { |
| 173 | self::$last_mail_error = $error->get_error_message(); |
| 174 | } |
| 175 | } |
| 176 | |
| 177 | /** |
| 178 | * Update email delivery status meta on a submission. |
| 179 | * |
| 180 | * @param int $post_id |
| 181 | * @param string $type 'admin' or 'user' |
| 182 | * @param bool $sent |
| 183 | * @param string|null $error |
| 184 | */ |
| 185 | public static function UpdateEmailStatus($post_id, $type, $sent, $error = null) |
| 186 | { |
| 187 | $status = get_post_meta($post_id, '_spb_form_email_status', true); |
| 188 | if (!is_array($status)) { |
| 189 | $status = array(); |
| 190 | } |
| 191 | $status[$type] = array( |
| 192 | 'sent' => (bool) $sent, |
| 193 | 'time' => time(), |
| 194 | 'error' => $error, |
| 195 | ); |
| 196 | update_post_meta($post_id, '_spb_form_email_status', $status); |
| 197 | } |
| 198 | |
| 199 | private static function BuildEmailBody($form_data, $fields) |
| 200 | { |
| 201 | $form_name = !empty($form_data['form_name']) ? esc_html($form_data['form_name']) : __('Form Submission', 'superb-blocks'); |
| 202 | |
| 203 | // Build fieldId => deduplicated label lookup |
| 204 | $form_fields = isset($form_data['form_fields']) ? $form_data['form_fields'] : array(); |
| 205 | $label_map = array(); |
| 206 | foreach (self::BuildFieldTagMap($form_fields) as $entry) { |
| 207 | $label_map[$entry['fieldId']] = $entry['label']; |
| 208 | } |
| 209 | |
| 210 | // Build sensitive field lookup to skip in email body. The sensitive |
| 211 | // toggle is unavailable for file and hidden fields, so a flag left over |
| 212 | // from a prior field type is treated as off. Those fields are shown, |
| 213 | // and files attached, like any other field. |
| 214 | $sensitive_ids = array(); |
| 215 | foreach ($form_fields as $field_def) { |
| 216 | $field_type = isset($field_def['fieldType']) ? $field_def['fieldType'] : ''; |
| 217 | if ($field_type === 'file' || $field_type === 'hidden') { |
| 218 | continue; |
| 219 | } |
| 220 | if (!empty($field_def['sensitive']) && !empty($field_def['fieldId'])) { |
| 221 | $sensitive_ids[$field_def['fieldId']] = true; |
| 222 | } |
| 223 | } |
| 224 | |
| 225 | // Build signature field lookup to skip in email body |
| 226 | $signature_ids = array(); |
| 227 | foreach ($form_fields as $field_def) { |
| 228 | if (isset($field_def['fieldType']) && $field_def['fieldType'] === 'signature' && !empty($field_def['fieldId'])) { |
| 229 | $signature_ids[$field_def['fieldId']] = true; |
| 230 | } |
| 231 | } |
| 232 | |
| 233 | $rows = ''; |
| 234 | foreach ($fields as $field_id => $value) { |
| 235 | // Skip sensitive fields |
| 236 | if (isset($sensitive_ids[$field_id])) { |
| 237 | continue; |
| 238 | } |
| 239 | // Skip signature fields (PNG data URLs are too large for email) |
| 240 | if (isset($signature_ids[$field_id])) { |
| 241 | continue; |
| 242 | } |
| 243 | $label = esc_html(isset($label_map[$field_id]) ? $label_map[$field_id] : $field_id); |
| 244 | |
| 245 | // File fields store an array of file metadata. Attached files are |
| 246 | // listed by name; files that exceeded the attachment budget get a |
| 247 | // plain-text note (no admin URL, since it may be quoted in a reply |
| 248 | // to the submitter when Reply-To is mapped to their email). |
| 249 | if (is_array($value)) { |
| 250 | // Only point the admin to the dashboard when submissions are |
| 251 | // stored. With storage off there is no submission to open, so an |
| 252 | // oversized file is gone once it misses the email; say no more. |
| 253 | $store_enabled = !empty($form_data['store_enabled']); |
| 254 | $parts = array(); |
| 255 | foreach ($value as $file) { |
| 256 | if (!is_array($file) || !isset($file['name'])) { |
| 257 | continue; |
| 258 | } |
| 259 | $name = esc_html($file['name']); |
| 260 | if (!empty($file['too_large'])) { |
| 261 | $size_str = isset($file['size']) ? esc_html(self::FormatBytes($file['size'])) : ''; |
| 262 | $file_label = $size_str !== '' ? $name . ' (' . $size_str . ')' : $name; |
| 263 | $parts[] = $store_enabled |
| 264 | /* translators: %s: file name, optionally followed by its size in parentheses */ |
| 265 | ? sprintf(__('%s is too large to email. It is available in this form\'s submissions in your dashboard.', 'superb-blocks'), $file_label) |
| 266 | /* translators: %s: file name, optionally followed by its size in parentheses */ |
| 267 | : sprintf(__('%s is too large to email.', 'superb-blocks'), $file_label); |
| 268 | } else { |
| 269 | $parts[] = $name; |
| 270 | } |
| 271 | } |
| 272 | $val = implode('<br>', array_filter($parts)); |
| 273 | if (empty($val)) { |
| 274 | continue; |
| 275 | } |
| 276 | } else { |
| 277 | $val = nl2br(esc_html($value)); |
| 278 | } |
| 279 | |
| 280 | $rows .= '<tr><td style="padding:8px 12px;border-bottom:1px solid #eee;font-weight:500;vertical-align:top;width:30%;">' . $label . '</td>'; |
| 281 | $rows .= '<td style="padding:8px 12px;border-bottom:1px solid #eee;">' . $val . '</td></tr>'; |
| 282 | } |
| 283 | |
| 284 | $content = '<h2 style="margin:0 0 16px;font-size:18px;">' . $form_name . '</h2>'; |
| 285 | $content .= '<table style="width:100%;border-collapse:collapse;font-size:14px;">' . $rows . '</table>'; |
| 286 | |
| 287 | return self::WrapInTemplate($content); |
| 288 | } |
| 289 | |
| 290 | /** |
| 291 | * Decide which uploaded files can ride along as email attachments. |
| 292 | * |
| 293 | * Files are attached greedily in field order while the running total stays |
| 294 | * within the budget returned by GetMaxAttachmentBytes(). Each file's |
| 295 | * metadata array is annotated with 'attached' (bool) and, when a present |
| 296 | * file did not fit, 'too_large' (bool) so BuildEmailBody can render it. |
| 297 | * The per-field upload cap (fileSettings.maxFileSize) is intentionally NOT |
| 298 | * reused: it is per-file, while this budget bounds the whole message. |
| 299 | * |
| 300 | * @param array $fields Submitted field data (field_id => value). |
| 301 | * @param array $form_data Form configuration (passed through to the filter). |
| 302 | * @return array list($fields, $attachment_paths) |
| 303 | */ |
| 304 | private static function PrepareAttachments($fields, $form_data) |
| 305 | { |
| 306 | $max_total = self::GetMaxAttachmentBytes($form_data); |
| 307 | $attachments = array(); |
| 308 | $used = 0; |
| 309 | |
| 310 | // The only array-valued fields reaching here are file fields (multi-value |
| 311 | // fields are stringified during sanitization), and the sensitive toggle |
| 312 | // is never available for file fields, so no sensitive check is needed. |
| 313 | foreach ($fields as $field_id => $value) { |
| 314 | if (!is_array($value)) { |
| 315 | continue; |
| 316 | } |
| 317 | foreach ($value as $i => $file) { |
| 318 | if (!is_array($file) || empty($file['path'])) { |
| 319 | continue; |
| 320 | } |
| 321 | $fields[$field_id][$i]['attached'] = false; |
| 322 | if (!file_exists($file['path'])) { |
| 323 | continue; |
| 324 | } |
| 325 | $size = isset($file['size']) ? intval($file['size']) : 0; |
| 326 | if ($size <= 0) { |
| 327 | $size = (int) filesize($file['path']); |
| 328 | } |
| 329 | if ($max_total > 0 && $size > 0 && ($used + $size) <= $max_total) { |
| 330 | $attachments[] = $file['path']; |
| 331 | $used += $size; |
| 332 | $fields[$field_id][$i]['attached'] = true; |
| 333 | } else { |
| 334 | $fields[$field_id][$i]['too_large'] = true; |
| 335 | } |
| 336 | } |
| 337 | } |
| 338 | |
| 339 | return array($fields, $attachments); |
| 340 | } |
| 341 | |
| 342 | /** |
| 343 | * Total byte budget for files attached to a single notification email. |
| 344 | * |
| 345 | * Defaults to 10MB, which clears the strict end of common mail-server |
| 346 | * limits after base64 inflation (~33%). Not a user-facing setting because |
| 347 | * the real ceiling is a property of the recipient's mail server; devs on a |
| 348 | * generous SMTP relay can raise it (or return 0 to disable attachments). |
| 349 | * |
| 350 | * @param array $form_data Form configuration, for per-form overrides. |
| 351 | * @return int Maximum total attachment size in bytes (0 disables). |
| 352 | */ |
| 353 | private static function GetMaxAttachmentBytes($form_data) |
| 354 | { |
| 355 | $default = 10 * 1024 * 1024; |
| 356 | /** |
| 357 | * Filters the total attachment byte budget for form notification emails. |
| 358 | * |
| 359 | * @param int $default Default budget in bytes (10MB). |
| 360 | * @param array $form_data The form configuration for the submission. |
| 361 | */ |
| 362 | $bytes = apply_filters('superbaddons_form_email_max_attachment_bytes', $default, $form_data); |
| 363 | return max(0, intval($bytes)); |
| 364 | } |
| 365 | |
| 366 | /** |
| 367 | * Format a byte count as a short human-readable size (e.g. "14MB"). |
| 368 | * |
| 369 | * @param int|float $bytes |
| 370 | * @return string |
| 371 | */ |
| 372 | private static function FormatBytes($bytes) |
| 373 | { |
| 374 | $bytes = floatval($bytes); |
| 375 | if ($bytes >= 1048576) { |
| 376 | return round($bytes / 1048576, 1) . 'MB'; |
| 377 | } |
| 378 | if ($bytes >= 1024) { |
| 379 | return round($bytes / 1024) . 'KB'; |
| 380 | } |
| 381 | return intval($bytes) . 'B'; |
| 382 | } |
| 383 | |
| 384 | private static function WrapInTemplate($content) |
| 385 | { |
| 386 | $site_name = esc_html(get_bloginfo('name')); |
| 387 | /* translators: %s: site name */ |
| 388 | $footer_text = sprintf(__('Sent from %s', 'superb-blocks'), $site_name); |
| 389 | return '<!DOCTYPE html><html><head><meta charset="UTF-8"></head><body style="margin:0;padding:20px;background:#f5f5f5;font-family:-apple-system,BlinkMacSystemFont,sans-serif;">' |
| 390 | . '<div style="max-width:600px;margin:0 auto;background:#fff;border-radius:4px;padding:24px;border:1px solid #e0e0e0;">' |
| 391 | . $content |
| 392 | . '<p style="margin:24px 0 0;font-size:12px;color:#999;">' . $footer_text . '</p>' |
| 393 | . '</div></body></html>'; |
| 394 | } |
| 395 | |
| 396 | /** |
| 397 | * Build a deduplicated tag map from form field definitions. |
| 398 | * Mirrors the JS buildFieldTagMap — duplicate labels get numeric suffixes. |
| 399 | * |
| 400 | * @param array $form_fields Array of field attribute arrays. |
| 401 | * @return array Array of [ 'fieldId' => string, 'label' => string ] |
| 402 | */ |
| 403 | private static function BuildFieldTagMap($form_fields) |
| 404 | { |
| 405 | $counts = array(); |
| 406 | $result = array(); |
| 407 | foreach ($form_fields as $field_def) { |
| 408 | $fid = isset($field_def['fieldId']) ? $field_def['fieldId'] : ''; |
| 409 | if ($fid === '') { |
| 410 | continue; |
| 411 | } |
| 412 | $field_type = isset($field_def['fieldType']) ? $field_def['fieldType'] : ''; |
| 413 | if ($field_type === 'hidden' || $field_type === 'signature') { |
| 414 | continue; |
| 415 | } |
| 416 | if (!empty($field_def['sensitive'])) { |
| 417 | continue; |
| 418 | } |
| 419 | $base_label = isset($field_def['label']) && $field_def['label'] !== '' |
| 420 | ? $field_def['label'] |
| 421 | : ($field_type !== '' ? 'Unlabeled ' . ucfirst($field_type) . ' Field' : 'Unlabeled Field'); |
| 422 | $counts[$base_label] = isset($counts[$base_label]) ? $counts[$base_label] + 1 : 1; |
| 423 | $n = $counts[$base_label]; |
| 424 | $label = $n > 1 ? $base_label . ' ' . $n : $base_label; |
| 425 | $result[] = array('fieldId' => $fid, 'label' => $label); |
| 426 | } |
| 427 | return $result; |
| 428 | } |
| 429 | |
| 430 | /** |
| 431 | * @param string $text Text with merge tags |
| 432 | * @param array $form_data Form configuration |
| 433 | * @param array $fields Submitted field data |
| 434 | * @param bool $escape_html Whether to escape values for HTML context |
| 435 | */ |
| 436 | private static function ProcessMergeTags($text, $form_data, $fields, $escape_html = false) |
| 437 | { |
| 438 | $form_name = isset($form_data['form_name']) ? $form_data['form_name'] : ''; |
| 439 | $site_name = get_bloginfo('name'); |
| 440 | if ($escape_html) { |
| 441 | $form_name = esc_html($form_name); |
| 442 | $site_name = esc_html($site_name); |
| 443 | } |
| 444 | $text = str_replace('{form_name}', $form_name, $text); |
| 445 | $text = str_replace('{site_name}', $site_name, $text); |
| 446 | |
| 447 | $form_fields = isset($form_data['form_fields']) ? $form_data['form_fields'] : array(); |
| 448 | $tag_map = self::BuildFieldTagMap($form_fields); |
| 449 | foreach ($tag_map as $entry) { |
| 450 | if (isset($fields[$entry['fieldId']])) { |
| 451 | $val = $fields[$entry['fieldId']]; |
| 452 | // Skip non-string values (e.g. file metadata arrays) |
| 453 | if (!is_string($val)) { |
| 454 | continue; |
| 455 | } |
| 456 | if ($escape_html) { |
| 457 | $val = esc_html($val); |
| 458 | } |
| 459 | $text = str_replace('{' . $entry['label'] . '}', $val, $text); |
| 460 | } |
| 461 | } |
| 462 | |
| 463 | return $text; |
| 464 | } |
| 465 | |
| 466 | /** |
| 467 | * Resolve the "From" name: form-level -> global default -> site name. |
| 468 | * |
| 469 | * @param array $form_data |
| 470 | * @return string |
| 471 | */ |
| 472 | private static function ResolveFromName($form_data) |
| 473 | { |
| 474 | // 1. Form-level setting |
| 475 | if (!empty($form_data['email_from_name'])) { |
| 476 | return sanitize_text_field($form_data['email_from_name']); |
| 477 | } |
| 478 | // 2. Global default setting |
| 479 | $defaults = get_option('superbaddons_form_default_email', array()); |
| 480 | if (is_array($defaults) && !empty($defaults['from_name'])) { |
| 481 | return sanitize_text_field($defaults['from_name']); |
| 482 | } |
| 483 | // 3. WordPress default |
| 484 | return get_bloginfo('name'); |
| 485 | } |
| 486 | |
| 487 | /** |
| 488 | * Resolve the "From" email: form-level -> global default -> admin email. |
| 489 | * |
| 490 | * @param array $form_data |
| 491 | * @return string |
| 492 | */ |
| 493 | private static function ResolveFromEmail($form_data) |
| 494 | { |
| 495 | // 1. Form-level setting |
| 496 | if (!empty($form_data['email_from_address'])) { |
| 497 | return sanitize_email($form_data['email_from_address']); |
| 498 | } |
| 499 | // 2. Global default setting |
| 500 | $defaults = get_option('superbaddons_form_default_email', array()); |
| 501 | if (is_array($defaults) && !empty($defaults['from_email'])) { |
| 502 | return sanitize_email($defaults['from_email']); |
| 503 | } |
| 504 | // 3. WordPress default |
| 505 | return get_option('admin_email'); |
| 506 | } |
| 507 | |
| 508 | /** |
| 509 | * Resolve a deduplicated label to its submitted value. |
| 510 | */ |
| 511 | private static function FindFieldValue($fields, $field_name, $form_fields = array()) |
| 512 | { |
| 513 | // First try direct match (fieldId as key) |
| 514 | if (isset($fields[$field_name])) { |
| 515 | return $fields[$field_name]; |
| 516 | } |
| 517 | // Resolve deduplicated label to fieldId via tag map |
| 518 | $tag_map = self::BuildFieldTagMap($form_fields); |
| 519 | foreach ($tag_map as $entry) { |
| 520 | if ($entry['label'] === $field_name && isset($fields[$entry['fieldId']])) { |
| 521 | return $fields[$entry['fieldId']]; |
| 522 | } |
| 523 | } |
| 524 | return ''; |
| 525 | } |
| 526 | } |
| 527 |