需要验证和空白/空字段的 PHP 提交表单

Question

我有一个包含 4 个字段的提交表单，由客户填写； “名” “姓” “问题” “行政问题” 没有一个字段可以允许提交数字值，如果尝试使用输入的数字进行发布，则必须返回错误。 前两个字段是必需的。 第三个和第四个字段要求填充其中一个或另一个，没有数字，也可以填充两者，但都不能为空。

在 Ryans 的指导下，我有以下代码来处理“questions”和“administrative_questions”字段，它允许一个或另一个为空，但如果两者都被填充，一个将允许数字通过但如果两者都有数字或两者都有数字和文本，则不是。仅当一个有文本，一个有数字或数字和文本混合时。 此表格的要求要求不允许提交任何数字。 这是财务咨询小组的合规问题。不允许客户通过此基于网络的提交表格提供任何类型的帐号、银行余额或财务价值，他们必须提供名字和姓氏。

$error_message = "";
$string_exp = "/^[\n\r\A-Za-z .,?!'-]+$/";
$questionsEntered = preg_match($string_exp,$questions);

$string_exp = "/^[\n\r\A-Za-z .,?!'-]+$/";
$administrativeQuestionsEntered = preg_match($string_exp,$administrative_questions);

if ($questionsEntered && $administrativeQuestionsEntered) {
// both were entered - ok?
}
elseif ($questionsEntered || $administrativeQuestionsEntered) {
// either one was entered - ok
}
else {
// explain that at least one of them must be entered 
$error_message = 'your error message';

Answer 1

我没有按照我应该阅读的方式阅读说明......

• error_message 附加到
• 如果输入的字段必须有效（每个字段两次检查）
• 它必须报告所有错误的字段。

这是经过测试的新代码...

$string_exp = "/^[\n\r\A-Za-z .,?!'-]+$/";
$questionsEntered = strlen(trim($questions)) > 0;
$questionsValid = preg_match($string_exp, $questions);
$questionErrorMsg = 'It appears you did not fill in all fields correctly.<br />
The <FONT COLOR="red">"Questions for Barbara"</font> you entered does not appear to be Valid,<br />
or contains numbers which are not permitted.<br />
In order to assure your security, the use of numbers is prohibited.<br />
Please use the "Back" button below this message to return to your initial<br />
submission and correct to this information.<br />
<FORM><INPUT Type="button" VALUE="Back" onClick="history.go(-1);return true;"></FORM>';

$string_exp = "/^[\n\r\A-Za-z .,?!'-]+$/";
$adminQuestionsEntered = strlen(trim($administrative_questions)) > 0;
$adminQuestionsValid = preg_match($string_exp, $administrative_questions);
$adminQuestionsErrorMsg = 'It appears you did not fill in all fields correctly.<br />
The <FONT COLOR="red">"Questions for Ray"</font> you entered does not appear to be Valid,<br />
or contains numbers which are not permitted.<br />
In order to assure your security, the use of numbers is prohibited.<br />
Please use the "Back" button below this message to return to your initial<br />
submission and correct to this information.<br />
<FORM><INPUT Type="button" VALUE="Back" onClick="history.go(-1);return true;"></FORM>';


if ($questionsEntered || $adminQuestionsEntered) {
   // either one or both were entered, are they Valid?

    if ($questionsEntered && !$questionsValid) {
        $error_message .= $questionErrorMsg;
    }

    if ($adminQuestionsEntered && !$adminQuestionsValid) {
        $error_message .= $adminQuestionsErrorMsg;
    }
}
else {
  // explain that at least one of them must be entered
  $error_message .= 'It appears you did not fill in all fields correctly.<br />
The <FONT COLOR="red">"Some questions must be entered"</font><br />
Please use the "Back" button below this message to return to your initial<br />
submission and correct to this information.<br />
<FORM><INPUT Type="button" VALUE="Back" onClick="history.go(-1);return true;"></FORM>';
}