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PHP - ÑéÖ¤Ãû×Ö

ÒÔÏ´úÂëչʾµÄ¼òµ¥·½·¨¼ì²é name ×Ö¶ÎÊÇ·ñ°üº¬×ÖĸºÍ¿Õ¸ñ¡£Èç¹û name ×Ö¶ÎÎÞЧ£¬Ôò´æ´¢Ò»Ìõ´íÎóÏûÏ¢£º

$name = test_input($_POST["name"]);
if (!preg_match("/^[a-zA-Z ]*$/",$name)) {
  $nameErr = "Ö»ÔÊÐí×ÖĸºÍ¿Õ¸ñ£¡"; 
}

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PHP - ÑéÖ¤ E-mail

ÒÔÏ´úÂëչʾµÄ¼òµ¥·½·¨¼ì²é e-mail µØÖ·Óï·¨ÊÇ·ñÓÐЧ¡£Èç¹ûÎÞЧÔò´æ´¢Ò»Ìõ´íÎóÏûÏ¢£º

$email = test_input($_POST["email"]);
if (!preg_match("/([\w\-]+\@[\w\-]+\.[\w\-]+)/",$email)) {
  $emailErr = "ÎÞЧµÄ email ¸ñʽ£¡"; 
}

PHP - ÑéÖ¤ URL

ÒÔÏ´úÂëչʾµÄ·½·¨¼ì²é URL µØÖ·Óï·¨ÊÇ·ñÓÐЧ£¨ÕâÌõÕýÔò±í´ïʽͬʱÔÊÐí URL ÖеÄб¸Ü£©¡£Èç¹û URL µØÖ·Óï·¨ÎÞЧ£¬Ôò´æ´¢Ò»Ìõ´íÎóÏûÏ¢£º

$website = test_input($_POST["website"]);
if (!preg_match("/\b(?:(?:https?|ftp):\/\/|www\.)[-a-z0-9+&@#\/%?=~_|!:,.;]*[-a-z0-9+&@#\/%
=~_|]/i",$website)) {
  $websiteErr = "ÎÞЧµÄ URL"; 
}

PHP - ÑéÖ¤ Name¡¢E-mail¡¢ÒÔ¼° URL

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<?php
// ¶¨Òå±äÁ¿²¢ÉèÖÃΪ¿ÕÖµ
$nameErr = $emailErr = $genderErr = $websiteErr = "";
$name = $email = $gender = $comment = $website = "";

if ($_SERVER["REQUEST_METHOD"] == "POST") {
  if (empty($_POST["name"])) {
    $nameErr = "Name is required";
  } else {
    $name = test_input($_POST["name"]);
    // ¼ì²éÃû×ÖÊÇ·ñ°üº¬×ÖĸºÍ¿Õ¸ñ
    if (!preg_match("/^[a-zA-Z ]*$/",$name)) {
      $nameErr = "Only letters and white space allowed"; 
    }
  }

  if (empty($_POST["email"])) {
    $emailErr = "Email is required";
  } else {
    $email = test_input($_POST["email"]);
    // ¼ì²éµçÓʵØÖ·Óï·¨ÊÇ·ñÓÐЧ
    if (!preg_match("/([\w\-]+\@[\w\-]+\.[\w\-]+)/",$email)) {
      $emailErr = "Invalid email format"; 
    }
  }

  if (empty($_POST["website"])) {
    $website = "";
  } else {
    $website = test_input($_POST["website"]);
    // ¼ì²é URL µØÖ·ÓïÑÔÊÇ·ñÓÐЧ£¨´ËÕýÔò±í´ïʽͬÑùÔÊÐí URL ÖеÄÏ»®Ïߣ©
    if (!preg_match("/\b(?:(?:https?|ftp):\/\/|www\.)[-a-z0-9+&@#\/%?=~_|!:,.;]*[-a-z0-9+&@#\/%
    =~_|]/i",$website)) {
      $websiteErr = "Invalid URL"; 
    }
  }

  if (empty($_POST["comment"])) {
    $comment = "";
  } else {
    $comment = test_input($_POST["comment"]);
  }

  if (empty($_POST["gender"])) {
    $genderErr = "Gender is required";
  } else {
    $gender = test_input($_POST["gender"]);
  }
}
?>

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