文档介绍：常用函数封装 123456789 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 <?php /** * 获取客户端 IP * ***@return [string] [description] */ function getClientIp() { $ip = NULL; 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 = $_SERVER [ 'REMOTE_ADDR' ]; } // IP 地址合法验证$ip = (false !== ip2long ( $ip )) ? $ip : '' ; return $ip ;} /** * 获取在线 IP * ***@return String */ function getOnlineIp( $format =0) { global $S_GLOBAL ; if ( empty ( $S_GLOBAL [ 'onlineip' ])) { if ( getenv ( 'HTTP_CLIENT_IP' ) && strcasecmp ( getenv ( 'HTTP_CLIENT_IP' ), 'unknown' )) { $onlineip = getenv ( 'HTTP_CLIENT_IP' ); } elseif ( getenv ( 'HTTP_X_FORWARDED_FOR' ) && strcasecmp ( getenv ( 'HTTP_X_FORWARDED_FOR' ), 'unknown' )) { $onlineip = getenv ( 'HTTP_X_FORWARDED_FOR' ); } elseif ( getenv ( 'REMOTE_ADDR' ) && strcasecmp ( getenv ( 'REMOTE_ADDR' ), 'unknown' )) { $onlineip = getenv ( 'REMOTE_ADDR' ); } elseif (isset( $_SERVER [ 'REMOTE_ADDR' ]) && $_SERVER [ 'REMOTE_ADDR' ] && strcasecmp ( $_SERVER [ 'REMOTE_ADDR' ], 'unknown' )) { 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 $onlineip = $_SERVER [ 'REMOTE_ADDR' ]; } preg_match( "/[\d\.]{7,15}/" , $onlineip , $onlineipmatches ); $S_GLOBAL [ 'onlineip' ]= $onlineipmatches [0] ? $onlineipmatches [0] : 'unknown' ; } if ( $format ){ $ips = explode ( '.' , $S_GLOBAL [ 'onlineip' ]); for ( $i =0; $i <3; $i ++) { $ips [ $i ]= intval ( $ips [ $i ]); } return sprintf( '%03d%03d%03d' , $ips [0], $ips [1], $ips [2]); } else { return $S_GLOBAL [ 'onlineip' ]; }} /** * 获取 url * ***@return [type] [description] */ function getUrl(){ $