PHP常见方法封装总结 PHP常见方法封装总结

1.get请求
2.post请求
3.随机字符串
4.返回json数据
5.数据过滤
6.重定向
7.获取客户端ip

1.get请求

function get_curl($url, $timeout = 5) {$ch = curl_init(); curl_setopt($ch,CURLOPT_URL,$url); curl_setopt($ch,CURLOPT_RETURNTRANSFER,true ); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($ch, CURLOPT_TIMEOUT, $timeout); $result = curl_exec( $ch ); curl_close($ch); return $result; }

2.post请求

function post_curl($url, $data, $timeout = 5) {$ch = curl_init(); curl_setopt($ch,CURLOPT_URL,$url); curl_setopt($ch,CURLOPT_RETURNTRANSFER,true ); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($ch, CURLOPT_TIMEOUT, $timeout); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch,CURLOPT_POSTFIELDS,$data); $result = curl_exec( $ch ); curl_close($ch); return $result; }

3.随机字符串

function random_str($len=10, $type=1){switch($type){case 2:$chars='0123456789'; break; case 3:$chars='abcdefghijklmnopqrstuvwxyz'; break; case 4:$chars='ABDEFGHIJKLMNOPQRSTUVWXYZ'; break; case 5:$chars='abcdefghijklmnopqrstuvwxyzABDEFGHIJKLMNOPQRSTUVWXYZ'; break; case 6:$chars='abcdefghijklmnopqrstuvwxyz0123456789'; break; default:$chars='abcdefghijklmnopqrstuvwxyzABDEFGHIJKLMNOPQRSTUVWXYZ0123456789'; break; } $str = ''; for ( $i = 0; $i <$len; $i++ ){$str .= $chars[ mt_rand(0, strlen($chars) - 1) ]; }return $str; }

4.返回json数据

function json_back($data, $is_exit = true) {$callback = $_GET['callback'] ?? ''; if ($callback) {echo '' . $callback . "(" . json_encode($data, JSON_UNESCAPED_UNICODE) . ")"; } else {echo json_encode($data, JSON_UNESCAPED_UNICODE); }if ($is_exit) exit(); }

5.数据过滤

function check_data($data){if(is_array($data)){foreach($data as $key => $v){$data[$key] = $this->check_data($v); }}else{$data = https://www.it610.com/article/trim($data); $data = strip_tags($data); $data = htmlspecialchars($data); $data = addslashes($data); }return $data; }

6.重定向

function redirect($url = 'https://blog.csdn.net/weixin_41635750'){if (!headers_sent()) {header("Location: {$url}"); exit(); }else{$str = ""; exit($str); }}

7.获取客户端ip

function get_real_ip() {if(@$_SERVER["HTTP_ALI_CDN_REAL_IP"]){$ip = $_SERVER["HTTP_ALI_CDN_REAL_IP"]; }elseif (@$_SERVER["HTTP_X_FORWARDED_FOR"] ?: false) {$ip= $_SERVER["HTTP_X_FORWARDED_FOR"]; $ips = explode(',', $ip); $ip= $ips[0]; } elseif (@$_SERVER["HTTP_CDN_SRC_IP"] ?: false) {$ip = $_SERVER["HTTP_CDN_SRC_IP"]; } elseif (getenv('HTTP_CLIENT_IP')) {$ip = getenv('HTTP_CLIENT_IP'); } elseif (getenv('HTTP_X_FORWARDED')) {$ip = getenv('HTTP_X_FORWARDED'); } elseif (getenv('HTTP_FORWARDED_FOR')) {$ip = getenv('HTTP_FORWARDED_FOR'); } elseif (getenv('HTTP_FORWARDED')) {$ip = getenv('HTTP_FORWARDED'); } else {$ip = $_SERVER['REMOTE_ADDR']; }$ip = str_replace(array('::ffff:', '[', ']'), array('', '', ''), $ip); return $ip; }

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