10段PHP常用功能代码(1)
1、使用PHP Mail函数发送Email
$to = "viralpatel.net@gmail.com"; $subject = "VIRALPATEL.net"; $body = "Body of your message here you can use HTML too. e.g. ﹤br﹥ ﹤b﹥ Bold ﹤/b﹥"; $headers = "From: Peter\r\n"; $headers .= "Reply-To: info@yoursite.com\r\n"; $headers .= "Return-Path: info@yoursite.com\r\n"; $headers .= "X-Mailer: PHP5\n"; $headers .= 'MIME-Version: 1.0' . "\n"; $headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n"; mail($to,$subject,$body,$headers); ?﹥ |
2、PHP中的64位编码和解码
function base64url_encode($plainText) { $base64 = base64_encode($plainText); $base64url = strtr($base64, '+/=', '-_,'); return $base64url; } function base64url_decode($plainText) { $base64url = strtr($plainText, '-_,', '+/='); $base64 = base64_decode($base64url); return $base64; } |
3、获取远程IP地址
function getRealIPAddr() { if (!empty($_SERVER['HTTP_CLIENT_IP'])) //check ip from share internet { $ip=$_SERVER['HTTP_CLIENT_IP']; } elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) //to check ip is pass from proxy { $ip=$_SERVER['HTTP_X_FORWARDED_FOR']; } else { $ip=$_SERVER['REMOTE_ADDR']; } return $ip; } |
4、 日期格式化
function checkDateFormat($date) { //match the format of the date if (preg_match ("/^([0-9]{4})-([0-9]{2})-([0-9]{2})$/", $date, $parts)) { //check weather the date is valid of not if(checkdate($parts[2],$parts[3],$parts[1])) return true; else return false; } else return false; } |
5、验证Email
$email = $_POST['email']; if(preg_match("~([a-zA-Z0-9!#$%&'*+-/=?^_`{|}~])@([a-zA-Z0-9-]). ([a-zA-Z0-9]{2,4})~",$email)) { echo 'This is a valid email.'; } else{ echo 'This is an invalid email.'; } |
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