网页前端常用的小函数汇总，分页啦，中文截取啦，文件写入啦，啥的
<?phpif( !defined('CORE') ) exit('Request Error!');/** * 实用函数集合 * * 替代lib_common * * @author itprato<2500875@qq> * @version $Id$ */class util{ public static $client_ip = null; public static $cfc_handle = null; /** * 获得用户的真实IP 地址 * * @param 多个用多行分开 * @return void */ public static function get_client_ip() { static $realip = NULL; if( self::$client_ip !== NULL ) { return self::$client_ip; } if (isset($_SERVER['HTTP_X_FORWARDED_FOR2'])) { $arr = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR2']); foreach ($arr as $ip) { $ip = trim($ip); if ($ip != 'unknown') { $realip = $ip; break; } } } elseif (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) { $arr = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']); foreach ($arr as $ip) { $ip = trim($ip); if ($ip != 'unknown' ) { $realip = $ip; break; } } } elseif (isset($_SERVER['HTTP_CLIENT_IP'])) { $realip = $_SERVER['HTTP_CLIENT_IP']; } else { if (isset($_SERVER['REMOTE_ADDR'])) { $realip = $_SERVER['REMOTE_ADDR']; } else { $realip = '0.0.0.0'; } } preg_match("/[\d\.]{7,15}/", $realip, $onlineip); self::$client_ip = ! empty($onlineip[0]) ? $onlineip[0] : '0.0.0.0'; return self::$client_ip; } /** * 写文件 */ function put_file($file, $content, $flag = 0) { $pathinfo = pathinfo ( $file ); if (! empty ( $pathinfo ['dirname'] )) { if (file_exists ( $pathinfo ['dirname'] ) === false) { if (@mkdir ( $pathinfo ['dirname'], 0777, true ) === false) { return false; } } } if ($flag === FILE_APPEND) { return @file_put_contents ( $file, $content, FILE_APPEND ); } else { return @file_put_contents ( $file, $content, LOCK_EX ); } } /** * 获得当前的Url */ public static function get_cururl() { if(!empty($_SERVER["REQUEST_URI"])) { $scriptName = $_SERVER["REQUEST_URI"]; $nowurl = $scriptName; } else { $scriptName = $_SERVER["PHP_SELF"]; $nowurl = empty($_SERVER["QUERY_STRING"]) ? $scriptName : $scriptName."?".$_SERVER["QUERY_STRING"]; } return $nowurl; } /** * 检查路径是否存在 * @parem $path * @return bool */ public static function path_exists( $path ) { $pathinfo = pathinfo ( $path . '/tmp.txt' ); if ( !empty( $pathinfo ['dirname'] ) ) { if (file_exists ( $pathinfo ['dirname'] ) === false) { if (mkdir ( $pathinfo ['dirname'], 0777, true ) === false) { return false; } } } return $path; } /** * 判断是否为utf8字符串 * @parem $str * @return bool */ public static function is_utf8($str) { if ($str === mb_convert_encoding(mb_convert_encoding($str, "UTF-32", "UTF-8"), "UTF-8", "UTF-32")) { return true; } else { return false; } } /** * 公共分页函数 * * @param array $config * $config['current_page'] //当前页数 * $config['page_size'] //每页显示多少条 * $config['total_rs'] //总记录数 * $config['url_prefix'] //网址前缀 * $config['page_name'] //当前分页变量名(默认是page_no， 即访问是用 url_prefix&page_no=xxx ) * $config['move_size'] //前后偏移量（默认是5） * $config['input'] //是否使用输入跳转框(0|1) * 输出格式： * <div . $current_page . "</span>\n"; //后偏移 $flag = 0; if ( $current_page < $total_page ) { for ($i = $current_page + 1; $i <= $total_page; $i++) { $pages .= "<a href='{$url_prefix}&{$page_name}={$i}'>$i</a>\n"; $flag++; if ($flag == $move_size) { break; } } } //下一页、末页 if( $current_page != $total_page ) { $pages .= "<a href='{$url_prefix}&{$page_name}={$next_page}' class='next'>>»</a>\n"; $pages .= "<a href='{$url_prefix}&{$page_name}={$last_page}' class='last-page'>末页</a>\n"; } else { $pages .= "<a class='next'>>»</a>\n"; $pages .= "<a class='last-page'>末页</a>\n"; } //增加输入框跳转 if( !empty($config['input']) ) { $pages .= '<input type="text" onkeydown="javascript:if(event.keyCode==13){ location=\''.$url_prefix.'&'.$page_name.'=\'+this.value; }" onkeyup="value=value.replace(/[^\d]/g,\'\')" />'; } $pages .= "<span>共 {$total_page} 页 / {$total_rs} 条记录</span>\n"; $pages .= '</div>'; return $pages; } /** * utf8编码模式的中文截取2，单字节截取模式 * 这里不使用mbstring扩展 * @return string */ public static function utf8_substr($str, $slen, $startdd=0) { return mb_substr($str , $startdd , $slen , 'UTF-8'); } /** * 从普通时间返回Linux时间截(strtotime中文处理版) * @parem string $dtime * @return int */ public static function cn_strtotime( $dtime ) { if(!preg_match("/[^0-9]/", $dtime)) { return $dtime; } $dtime = trim($dtime); $dt = Array(1970, 1, 1, 0, 0, 0); $dtime = preg_replace("/[\r\n\t]|日|秒/", " ", $dtime); $dtime = str_replace("年", "-", $dtime); $dtime = str_replace("月", "-", $dtime); $dtime = str_replace("时", ":", $dtime); $dtime = str_replace("分", ":", $dtime); $dtime = trim(preg_replace("/[ ]{1,}/", " ", $dtime)); $ds = explode(" ", $dtime); $ymd = explode("-", $ds[0]); if(!isset($ymd[1])) { $ymd = explode(".", $ds[0]); } if(isset($ymd[0])) { $dt[0] = $ymd[0]; } if(isset($ymd[1])) $dt[1] = $ymd[1]; if(isset($ymd[2])) $dt[2] = $ymd[2]; if(strlen($dt[0])==2) $dt[0] = '20'.$dt[0]; if(isset($ds[1])) { $hms = explode(":", $ds[1]); if(isset($hms[0])) $dt[3] = $hms[0]; if(isset($hms[1])) $dt[4] = $hms[1]; if(isset($hms[2])) $dt[5] = $hms[2]; } foreach($dt as $k=>$v) { $v = preg_replace("/^0{1,}/", '', trim($v)); if($v=='') { $dt[$k] = 0; } } $mt = mktime($dt[3], $dt[4], $dt[5], $dt[1], $dt[2], $dt[0]); if(!empty($mt)) { return $mt; } else { return strtotime( $dtime ); } } /** * 发送邮件 * @param array $to 收件人 * @param string $subject 邮件标题 * @param string $body 邮件内容 * @return bool * @author xiaocai */ public static function send_email($to, $subject, $body) { $send_account = $GLOBALS['config']['send_smtp_mail_account']; try { $smtp = new cls_mail($send_account['host'], $send_account['port'], true, $send_account['user'], $send_account['password']); $smtp->debug = $send_account['debug']; $result = $smtp->sendmail($to, $send_account['from'], $subject, $body, $send_account['type']); return $result; } catch( Exception $e ) { return false; } } //将中文进行 urlencode 转换 public static function q_encode($str) { $data_code = ""; $data = array_filter(explode(" ",$str)); $data = array_flip(array_flip($data)); foreach ($data as $ss) { if (strlen($ss)>1 ) $data_code .= str_replace("%","",urlencode($ss)) . " "; } $data_code = trim($data_code); return $data_code; } public static function get_domain($url){ $pattern = "/[\w-]+\.(com|net|org|gov|cc|biz|info|cn)(\.(cn|hk))*/"; preg_match($pattern, $url, $matches); if(count($matches) > 0) { return $matches[0]; }else{ $rs = parse_url($url); $main_url = $rs["host"]; if(!strcmp(long2ip(sprintf("%u",ip2long($main_url))),$main_url)) { return $main_url; }else{ $arr = explode(".",$main_url); $count=count($arr); $endArr = array("com","net","org","3322");//com.cn net.cn 等情况 if (in_array($arr[$count-2],$endArr)){ $domain = $arr[$count-3].".".$arr[$count-2].".".$arr[$count-1]; }else{ $domain = $arr[$count-2].".".$arr[$count-1]; } return $domain; }// end if(!strcmp...) }// end if(count...) }// end function /** * 根据日期得到年龄 * @param string $birthday Y-m-d * @return <type> */ function get_age($birthday) { if(!$birthday) return "-"; $by = substr($birthday, 0,4); $bm = substr($birthday, 4,2); $bd = substr($birthday, 6,2); list($y, $m, $d) = explode("-", date('Y-m-d')); if(($m > $bm) || ($m == $bm && $d > $bd)) $y++; return $y-$by; } /** *getConstellation 根据出生生日取得星座 * *@param String $brithday 用于得到星座的日期 格式为yyyy-mm-dd * *@param Array $format 用于返回星座的名称 * *@return String */ public static function get_constellation($birthday, $format=null) { $pattern = '/^\d{4}-\d{1,2}-\d{1,2}$/'; if (!preg_match($pattern, $birthday, $matchs)) { return null; } $date = explode('-', $birthday); $year = $date[0]; $month = $date[1]; $day = $date[2]; if ($month <1 || $month>12 || $day < 1 || $day >31) { return null; } //设定星座数组 $constellations = array( '摩羯座', '水瓶座', '双鱼座', '白羊座', '金牛座', '双子座', '巨蟹座','狮子座', '处女座', '天秤座', '天蝎座', '射手座',); //或 /*$constellations = array( 'Capricorn', 'Aquarius', 'Pisces', 'Aries', 'Taurus', 'Gemini', 'Cancer','Leo', 'Virgo', 'Libra', 'Scorpio', 'Sagittarius',);*/ //设定星座结束日期的数组，用于判断 $enddays = array(19, 18, 20, 20, 20, 21, 22, 22, 22, 22, 21, 21,); //如果参数format被设置，则返回值采用format提供的数组，否则使用默认的数组 if ($format != null) { $values = $format; } else { $values = $constellations; } //根据月份和日期判断星座 switch ($month) { case 1: if ($day <= $enddays[0]) { $constellation = $values[0]; } else { $constellation = $values[1]; } break; case 2: if ($day <= $enddays[1]) { $constellation = $values[1]; } else { $constellation = $values[2]; } break; case 3: if ($day <= $enddays[2]) { $constellation = $values[2]; } else { $constellation = $values[3]; } break; case 4: if ($day <= $enddays[3]) { $constellation = $values[3]; } else { $constellation = $values[4]; } break; case 5: if ($day <= $enddays[4]) { $constellation = $values[4]; } else { $constellation = $values[5]; } break; case 6: if ($day <= $enddays[5]) { $constellation = $values[5]; } else { $constellation = $values[6]; } break; case 7: if ($day <= $enddays[6]) { $constellation = $values[6]; } else { $constellation = $values[7]; } break; case 8: if ($day <= $enddays[7]) { $constellation = $values[7]; } else { $constellation = $values[8]; } break; case 9: if ($day <= $enddays[8]) { $constellation = $values[8]; } else { $constellation = $values[9]; } break; case 10: if ($day <= $enddays[9]) { $constellation = $values[9]; } else { $constellation = $values[10]; } break; case 11: if ($day <= $enddays[10]) { $constellation = $values[10]; } else { $constellation = $values[11]; } break; case 12: if ($day <= $enddays[11]) { $constellation = $values[11]; } else { $constellation = $values[0]; } break; } return $constellation; } /** * 0大于18岁，1小于18岁 * gt18,判断是否大于18岁 */public static function gt18($user_id){$user_info = pub_mod_user::get_one_user_details($user_id);$reg_time = $user_info['reg_time']; //如果2012.11.20以前用户不在追究验证$time = mktime(0,0,0,11,20,2012);$IDCard = $user_info['idcard'];if($reg_time<$time){return 0;exit; //大于18}elseif(empty($IDCard)){return 1;exit; //小于18}else{if(!preg_match("/^[1-9]\d{7}((0\d)|(1[0-2]))(([0|1|2]\d)|3[0-1])\d{3}$/",$IDCard) && !preg_match("/^[1-9]\d{5}[1-9]\d{3}((0\d)|(1[0-2]))(([0|1|2]\d)|3[0-1])\d{3}(\d|x|X)$/",$IDCard)){ $flag=1; }else{ if(strlen($IDCard)==18){ $tyear=intval(substr($IDCard,6,4)); $tmonth=intval(substr($IDCard,10,2)); $tday=intval(substr($IDCard,12,2)); if($tyear>date("Y")||$tyear<(date("Y")-100)){ $flag=0; } elseif($tmonth<0||$tmonth>12){ $flag=0; } elseif($tday<0||$tday>31){ $flag=0; }else{ $tdate=$tyear."-".$tmonth."-".$tday." 00:00:00"; if((time()-mktime(0,0,0,$tmonth,$tday,$tyear))>18*365*24*60*60){ $flag=0; }else{ $flag=1; } } }elseif(strlen($IDCard)==15){ $tyear=intval("19".substr($IDCard,6,2)); $tmonth=intval(substr($IDCard,8,2)); $tday=intval(substr($IDCard,10,2)); if($tyear>date("Y")||$tyear<(date("Y")-100)){ $flag=0; } elseif($tmonth<0||$tmonth>12){ $flag=0; } elseif($tday<0||$tday>31){ $flag=0; }else{ $tdate=$tyear."-".$tmonth."-".$tday." 00:00:00"; if((time()-mktime(0,0,0,$tmonth,$tday,$tyear))>18*365*24*60*60){ $flag=0; }else{ $flag=1; } } } } return $flag; }} /** * 在二维数组中找第二维数组中，$key==$value 的 * * @param array $array * @param string $item * @param string $value * @return array or false */ function array_search2($array, $item, $value, $return_key = false) { if (!is_array($array) || empty($item) || empty($value)) { return false; } foreach ($array as $k => $v) { if (isset($v[$item]) && $v[$item] === $value) { if ($return_key) { return $k; } return $v; } } return false; }/** * * 限制ip访问游戏 */function ipallow(){$ip = util::get_client_ip();$tip = $GLOBALS['config']['ipallow'];if(in_array($ip,$tip)){return true;}else{echo "<script>alert('未到开服时间')</script>";exit();}}}
?作者：北京小buger，出来卖的，北京生活质量太低了，一个月挣个小钱儿，实在没啥情调，求解决方案
