再来 10 个有用的 PHP 代码
http://www.learncomputer.com/10-useful-php-code-snippets/ br /
http://www.learncomputer.com/10-useful-php-code-snippets/
function getRemoteIPAddress() {
$ip = $_SERVER['REMOTE_ADDR'];
return $ip;
}
2. [代码]如果有代理服务器的情况下获取IP 跳至 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [全屏预览]
function getRealIPAddress() {
if (!empty($_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;
}
3. [代码]获取 MySQL 时间戳 跳至 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [全屏预览]
$query = "select UNIX_TIMESTAMP(date_field) as mydate from mytable where 1=1";
$records = mysql_query($query) or die(mysql_error());
while($row = mysql_fetch_array($records)) {
echo $row;
}
4. [代码]验证日期格式：YYYY-MM-DD 跳至 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [全屏预览]
function checkDateFormat($date) {
// match the format of the date
if (preg_match("/^([0-9]{4})-([0-9]{2})-([0-9]{2})$/", $date, $parts)) {
// check whether the date is valid of not
if (checkdate($parts[2], $parts[3], $parts[1])) {
return true;
} else {
return false;
}
} else {
return false;
}
}
5. [代码]重定向 跳至 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [全屏预览]
header('Location: http://www.oschina.net/project/zh');
6. [代码]发送邮件 跳至 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [全屏预览]
$to = "someone@oschina.net"; $subject = "Your Subject here"; $body = "Body of your message here you can use HTML too. e.g. <br><b> Bold </b>"; $headers = "From: You\r\n"; $headers .= "Reply-To: info@yoursite.com\r\n"; $headers .= "Return-Path: info@yoursite.com\r\n"; $headers .= "X-Mailer: PHP\n"; $headers .= 'MIME-Version: 1.0' . "\n"; $headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n"; mail($to, $subject, $body, $headers);
7. [代码]BASE64 编码和解码 跳至 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [全屏预览]
function base64url_encode($plainText) {
$base64 = base64_encode($plainText);
$base64url = strtr($base64, '+/=', '-_,');
return $base64url;
}
function base64url_decode($plainText) {
$base64url = strtr($plainText, '-_,', '+/=');
$base64 = base64_decode($base64url);
return $base64;
}
8. [代码]JSON 处理 跳至 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [全屏预览]
$json_data = array ('id'=>1,'name'=>"John",'country'=>'Canada',"work"=>array("Google","Oracle"));
echo json_encode($json_data);
$json_string='{"id":1,"name":"John","country":"Canada","work":["Google","Oracle"]} ';
$obj=json_decode($json_string);
// print the parsed data
echo $obj->name; //displays John
echo $obj->work[0]; //displays Google
9. [代码]检测用户浏览器类型 跳至 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [全屏预览]
$useragent = $_SERVER ['HTTP_USER_AGENT']; echo "<b>Your User Agent is</b>: " . $useragent;
10. [代码]显示网页源码 跳至 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [全屏预览]
$lines = file('http://www.oschina.net/home/about');
foreach ($lines as $line_num => $line) {
// loop thru each line and prepend line numbers
echo "Line #<b>{$line_num}</b> : " . htmlspecialchars($line) . "<br>\n";
}
11. [代码]调整服务器时间 跳至 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [全屏预览]
$now = date('Y-m-d-G');
$now = strftime("%Y-%m-%d-%H", strtotime("$now -8 hours"));
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