php url,日期,ip,邮箱地址检测类代码

2024-09-04 11:47:32

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本文章提供的确款正则表达式来检测url地址,日期格式,ip地址,与邮箱地址是否合法的验证代码,希望本文章对各位同学会带来帮助,代码如下:

class validation{

function check_email($value){ //check a email address

  return (bool) preg_match('/^[a-z0-9._%+-]+@(?:[a-z0-9-]+.)+[a-z]{2,4}$/i', $value);

}

function check_ip($value){ //check a ip address

  return (bool) preg_match("/^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?).){4}$/", $value.".");

}

function check_date($date, $format="dd/mm/yy"){ //check a date

  if(!preg_match("/([0-9]+)([./-])([0-9]+)(/2)([0-9]+)/", $date, $m)) return false;

  $f = explode("/", $format);

  $d[$f[0]] = $m[1];

  $d[$f[1]] = $m[3];

  $d[$f[2]] = $m[5];

  return checkdate($d['mm'], $d['dd'], $d['yyyy'].$d['yy']);

}

function check_url($url){ //check a url

  return (bool) preg_match("/^(?:(?:ht|f)tp(?:s?)://|~/|/)?(?:(?:w+.)+)w+(?::d+)?(?:(?:/[^/?#]+)+)?/?(?:?[^?]*)?(#.*)?$/i", $url);

}

}

调用方法,代码如下:

$validation = new validation();

//检测邮箱:

var_dump($validation->check_email("abc@abc.abc.com"));//true

var_dump($validation->check_email("abc.abc@abc.com"));//false

//ip检测:

var_dump($validation->check_ip("127.0.0.1.0"));

var_dump($validation->check_ip("256.0.0.1"));

//日期格式检测:

//true

var_dump($validation->check_date("2010/1/20", "yyyy/mm/dd"));

var_dump($validation->check_date("1/20/10", "mm/dd/yy"));

var_dump($validation->check_date("2010-20-1", "yyyy/dd/mm"));

//false

var_dump($validation->check_date("2010/2/29", "yyyy/mm/dd"));//开源代码Vevb.com

var_dump($validation->check_date("2010/1/20", "yyyy/dd/mm"));

var_dump($validation->check_date("2010-20/1", "yyyy/dd/mm"));