// 有id，才算真的有发票数据
if ($v['b_invoice_id']) {$v['b_invoice_info'] = json_decode($v['b_invoice_json'],true);$v['b_invoice_str'] .= '类型:';if ((int)$v['b_invoice_purchase'] === 1) { $v['b_invoice_str'] .='(收购)'; }if ((int)$v['b_invoice_info']['type'] === 1) { $v['b_invoice_str'] .='普通发票'; } else { $v['b_invoice_str'] .= '专用发票'; }$v['b_invoice_str'] .= "\r\n公司名称/姓名:";$v['b_invoice_str'] .= $v['b_invoice_info']['company_name'];$v['b_invoice_str'] .= "\r\n识别号/身份证:";$v['b_invoice_str'] .= $v['b_invoice_info']['company_tax'];$v['b_invoice_str'] .= "\r\n电话:";$v['b_invoice_str'] .= $v['b_invoice_info']['company_telephone']?:'无';$v['b_invoice_str'] .= "\r\n地址:";$v['b_invoice_str'] .= $v['b_invoice_info']['company_address']?:'无';$v['b_invoice_str'] .= "\r\n开户行:";$v['b_invoice_str'] .= $v['b_invoice_info']['company_bank']?:'无';$v['b_invoice_str'] .= "\r\n开户账号:";$v['b_invoice_str'] .= $v['b_invoice_info']['company_account']?:'无';
} else {$v['b_invoice_info'] = [];
}
if ($v['c_invoice_id']) {$v['c_invoice_info'] = json_decode($v['c_invoice_json'],true);$v['c_invoice_str'] .= '类型:';if ((int)$v['c_invoice_info']['type'] === 1) { $v['c_invoice_str'] .='普通发票'; } else { $v['c_invoice_str'] .= '专用发票'; }$v['c_invoice_str'] .= "\r\n公司名称:";$v['c_invoice_str'] .= $v['c_invoice_info']['company_name'];$v['c_invoice_str'] .= "\r\n识别号:";$v['c_invoice_str'] .= $v['c_invoice_info']['company_tax'];$v['c_invoice_str'] .= "\r\n电话:";$v['c_invoice_str'] .= $v['c_invoice_info']['company_telephone']?:'无';$v['c_invoice_str'] .= "\r\n地址:";$v['c_invoice_str'] .= $v['c_invoice_info']['company_address']?:'无';$v['c_invoice_str'] .= "\r\n开户行:";$v['c_invoice_str'] .= $v['c_invoice_info']['company_bank']?:'无';$v['c_invoice_str'] .= "\r\n开户账号:";$v['c_invoice_str'] .= $v['c_invoice_info']['company_account']?:'无';
}

\r\n
必须是双引号。