判断post,ajax,get请求的方法

判断post,ajax,get请求的方法

define('IS_GET',isset($_SERVER['REQUEST_METHOD']) ? $_SERVER['REQUEST_METHOD'] == 'GET' : false);define('IS_POST',isset($_SERVER['REQUEST_METHOD']) ? $_SERVER['REQUEST_METHOD'] == 'POST' : false);define('IS_AJAX',isset($_SERVER['HTTP_REQUEST_TYPE']) && $_SERVER['HTTP_REQUEST_TYPE'] == 'ajax'?true:false);

补充：

function is_ajax(){　　return isset($_SERVER['HTTP_X_REQUESTED_WITH']) && strtoupper($_SERVER['HTTP_X_REQUESTED_WITH'])=='XMLHTTPREQUEST';}function is_cli(){　　return (PHP_SAPI === 'cli' OR defined('STDIN'));}

php中获取客户端真实ip地址的方法

function get_real_ip(){ ??$ip=false; ??if(!empty($_SERVER['HTTP_CLIENT_IP'])){ ??????$ip=$_SERVER['HTTP_CLIENT_IP']; ??} ??if(!empty($_SERVER['HTTP_X_FORWARDED_FOR'])){ ??????$ips=explode (', ', $_SERVER['HTTP_X_FORWARDED_FOR']); ??????if($ip){ array_unshift($ips, $ip); $ip=FALSE; } ??????for ($i=0; $i < count($ips); $i++){ ??????????if(!eregi ('^(10│172.16│192.168).', $ips[$i])){ ??????????????$ip=$ips[$i]; ??????????????break; ??????????} ??????} ??} ??return ($ip ? $ip : $_SERVER['REMOTE_ADDR']);}

function get_real_ip(){ ???static $realip; ???if(isset($_SERVER)){ ???????if(isset($_SERVER['HTTP_X_FORWARDED_FOR'])){ ???????????$realip=$_SERVER['HTTP_X_FORWARDED_FOR']; ???????}else if(isset($_SERVER['HTTP_CLIENT_IP'])){ ???????????$realip=$_SERVER['HTTP_CLIENT_IP']; ???????}else{ ???????????$realip=$_SERVER['REMOTE_ADDR']; ???????} ???}else{ ???????if(getenv('HTTP_X_FORWARDED_FOR')){ ???????????$realip=getenv('HTTP_X_FORWARDED_FOR'); ???????}else if(getenv('HTTP_CLIENT_IP')){ ???????????$realip=getenv('HTTP_CLIENT_IP'); ???????}else{ ???????????$realip=getenv('REMOTE_ADDR'); ???????} ???} ???return $realip;}

function is_ip($str){ ???$ip=explode('.',$str); ???for($i=0;$i<count($ip);$i++){ ???????if($ip[$i]>255){ ???????????return false; ???????} ???} ???return preg_match('/^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$/',$str);}function getIp(){ ???$ip='未知IP'; ???if(!empty($_SERVER['HTTP_CLIENT_IP'])){ ???????return is_ip($_SERVER['HTTP_CLIENT_IP'])?$_SERVER['HTTP_CLIENT_IP']:$ip; ???}elseif(!empty($_SERVER['HTTP_X_FORWARDED_FOR'])){ ???????return is_ip($_SERVER['HTTP_X_FORWARDED_FOR'])?$_SERVER['HTTP_X_FORWARDED_FOR']:$ip; ???}else{ ???????return is_ip($_SERVER['REMOTE_ADDR'])?$_SERVER['REMOTE_ADDR']:$ip; ???}}

/** * 获取客户端IP地址 * @param integer $type 返回类型 0 返回IP地址 1 返回IPV4地址数字 * @param boolean $adv 是否进行高级模式获取（有可能被伪装) * @return mixed */function get_client_ip($type = 0,$adv=false) { ???$type ??????= ?$type ? 1 : 0; ???static $ip ?= ??NULL; ???if ($ip !== NULL) return $ip[$type]; ???if($adv){ ???????if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) { ???????????$arr ???= ??explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']); ???????????$pos ???= ??array_search('unknown',$arr); ???????????if(false !== $pos) unset($arr[$pos]); ???????????$ip ????= ??trim($arr[0]); ???????}elseif (isset($_SERVER['HTTP_CLIENT_IP'])) { ???????????$ip ????= ??$_SERVER['HTTP_CLIENT_IP']; ???????}elseif (isset($_SERVER['REMOTE_ADDR'])) { ???????????$ip ????= ??$_SERVER['REMOTE_ADDR']; ???????} ???}elseif (isset($_SERVER['REMOTE_ADDR'])) { ???????$ip ????= ??$_SERVER['REMOTE_ADDR']; ???} ???// IP地址合法验证 ???$long = sprintf("%u",ip2long($ip)); ???$ip ??= $long ? array($ip, $long) : array('0.0.0.0', 0); ???return $ip[$type];}

php添加访问授权的方法

//允许所有域名的请求访问header('Access-Control-Allow-Origin:*');//允许百度的请求访问header('Access-Control-Allow-Origin:https://www.baidu.com'); header('Access-Control-Allow-Methods:*');header('Access-Control-Allow-Headers:x-requested-with,content-type');

补充：

$ret = [　　'name' => isset($_POST['name'])? $_POST['name'] : '',　　'gender' => isset($_POST['gender'])? $_POST['gender'] : ''];header('content-type:application:json;charset=utf8');$origin = isset($_SERVER['HTTP_ORIGIN'] ? $_SERVER['HTTP_ORIGIN'] : '');$allow_origin = [　　'http://www.baidu.com',　　'http://www.jjxhp.com'];if (in_array($origin, $allow_origin)) {　　　　header('Access-Control-Allow-Origin:'.$origin);　　header('Access-Control-Allow-Methods:*');　　header('Access-Control-Allow-Headers:x-requested-with,content-type');}echo json_encode($ret);

判断post,ajax,get请求的方法

原文地址：https://www.cnblogs.com/jjxhp/p/10290520.html