php常用函数
来源：互联网 发布：腾讯网络认证 编辑：程序博客网 时间：2024/06/05 03:48
<?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 : '0.0.0.0'; 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')) { $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(){ $pageURL = 'http'; if (isset($_SERVER["HTTPS"]) && $_SERVER["HTTPS"] == "on") { $pageURL .= "s"; } $pageURL .= "://"; if ($_SERVER["SERVER_PORT"] != "80") { $pageURL .= $_SERVER["HTTP_HOST"] . ":" . $_SERVER["SERVER_PORT"] . $_SERVER["REQUEST_URI"]; } else { $pageURL .= $_SERVER["HTTP_HOST"] . $_SERVER["REQUEST_URI"]; } return $pageURL;} /** * 获取当前站点的访问路径根目录 * @return [type] [description] */function getSiteUrl() { $uri = $_SERVER['REQUEST_URI']?$_SERVER['REQUEST_URI']:($_SERVER['PHP_SELF']?$_SERVER['PHP_SELF']:$_SERVER['SCRIPT_NAME']); return 'http://'.$_SERVER['HTTP_HOST'].substr($uri, 0, strrpos($uri, '/')+1);} /** * 字符串截取，支持中文和其他编码 * @param [string] $str [字符串] * @param integer $start [起始位置] * @param integer $length [截取长度] * @param string $charset [字符串编码] * @param boolean $suffix [是否有省略号] * @return [type] [description] */function msubstr($str, $start=0, $length=15, $charset="utf-8", $suffix=true) { if(function_exists("mb_substr")) { return mb_substr($str, $start, $length, $charset); } elseif(function_exists('iconv_substr')) { return iconv_substr($str,$start,$length,$charset); } $re['utf-8'] = "/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xff][\x80-\xbf]{3}/"; $re['gb2312'] = "/[\x01-\x7f]|[\xb0-\xf7][\xa0-\xfe]/"; $re['gbk'] = "/[\x01-\x7f]|[\x81-\xfe][\x40-\xfe]/"; $re['big5'] = "/[\x01-\x7f]|[\x81-\xfe]([\x40-\x7e]|\xa1-\xfe])/"; preg_match_all($re[$charset], $str, $match); $slice = join("",array_slice($match[0], $start, $length)); if($suffix) { return $slice."…"; } return $slice;} /** * php 实现js escape 函数 * @param [type] $string [description] * @param string $encoding [description] * @return [type] [description] */function escape($string, $encoding = 'UTF-8'){ $return = null; for ($x = 0; $x < mb_strlen($string, $encoding);$x ++) { $str = mb_substr($string, $x, 1, $encoding); if (strlen($str) > 1) { // 多字节字符 $return .= "%u" . strtoupper(bin2hex(mb_convert_encoding($str, 'UCS-2', $encoding))); } else { $return .= "%" . strtoupper(bin2hex($str)); } } return $return;}/** * php 实现 js unescape函数 * @param [type] $str [description] * @return [type] [description] */function unescape($str) { $str = rawurldecode($str); preg_match_all("/(?:%u.{4})|.{4};|&#\d+;|.+/U",$str,$r); $ar = $r[0]; foreach($ar as $k=>$v) { if(substr($v,0,2) == "%u"){ $ar[$k] = iconv("UCS-2","utf-8//IGNORE",pack("H4",substr($v,-4))); } elseif(substr($v,0,3) == "") { $ar[$k] = iconv("UCS-2","utf-8",pack("H4",substr($v,3,-1))); } elseif(substr($v,0,2) == "&#") { echo substr($v,2,-1).""; $ar[$k] = iconv("UCS-2","utf-8",pack("n",substr($v,2,-1))); } } return join("",$ar);} /** * 数字转人名币 * @param [type] $num [description] * @return [type] [description] */function num2rmb ($num) { $c1 = "零壹贰叁肆伍陆柒捌玖"; $c2 = "分角元拾佰仟万拾佰仟亿"; $num = round($num, 2); $num = $num * 100; if (strlen($num) > 10) { return "oh,sorry,the number is too long!"; } $i = 0; $c = ""; while (1) { if ($i == 0) { $n = substr($num, strlen($num)-1, 1); } else { $n = $num % 10; } $p1 = substr($c1, 3 * $n, 3); $p2 = substr($c2, 3 * $i, 3); if ($n != '0' || ($n == '0' && ($p2 == '亿' || $p2 == '万' || $p2 == '元'))) { $c = $p1 . $p2 . $c; } else { $c = $p1 . $c; } $i = $i + 1; $num = $num / 10; $num = (int)$num; if ($num == 0) { break; } } $j = 0; $slen = strlen($c); while ($j < $slen) { $m = substr($c, $j, 6); if ($m == '零元' || $m == '零万' || $m == '零亿' || $m == '零零') { $left = substr($c, 0, $j); $right = substr($c, $j + 3); $c = $left . $right; $j = $j-3; $slen = $slen-3; } $j = $j + 3; } if (substr($c, strlen($c)-3, 3) == '零') { $c = substr($c, 0, strlen($c)-3); } // if there is a '0' on the end , chop it out return $c . "整";} /** * 特殊的字符 * @param [type] $str [description] * @return [type] [description] */function makeSemiangle($str) { $arr = array( '０' => '0', '１' => '1', '２' => '2', '３' => '3', '４' => '4', '５' => '5', '６' => '6', '７' => '7', '８' => '8', '９' => '9', 'Ａ' => 'A', 'Ｂ' => 'B', 'Ｃ' => 'C', 'Ｄ' => 'D', 'Ｅ' => 'E', 'Ｆ' => 'F', 'Ｇ' => 'G', 'Ｈ' => 'H', 'Ｉ' => 'I', 'Ｊ' => 'J', 'Ｋ' => 'K', 'Ｌ' => 'L', 'Ｍ' => 'M', 'Ｎ' => 'N', 'Ｏ' => 'O', 'Ｐ' => 'P', 'Ｑ' => 'Q', 'Ｒ' => 'R', 'Ｓ' => 'S', 'Ｔ' => 'T', 'Ｕ' => 'U', 'Ｖ' => 'V', 'Ｗ' => 'W', 'Ｘ' => 'X', 'Ｙ' => 'Y', 'Ｚ' => 'Z', 'ａ' => 'a', 'ｂ' => 'b', 'ｃ' => 'c', 'ｄ' => 'd', 'ｅ' => 'e', 'ｆ' => 'f', 'ｇ' => 'g', 'ｈ' => 'h', 'ｉ' => 'i', 'ｊ' => 'j', 'ｋ' => 'k', 'ｌ' => 'l', 'ｍ' => 'm', 'ｎ' => 'n', 'ｏ' => 'o', 'ｐ' => 'p', 'ｑ' => 'q', 'ｒ' => 'r', 'ｓ' => 's', 'ｔ' => 't', 'ｕ' => 'u', 'ｖ' => 'v', 'ｗ' => 'w', 'ｘ' => 'x', 'ｙ' => 'y', 'ｚ' => 'z', '（' => '(', '）' => ')', '〔' => '[', '〕' => ']', '【' => '[', '】' => ']', '〖' => '[', '〗' => ']', '｛' => '{', '｝' => '}', '《' => '<', '》' => '>', '％' => '%', '＋' => '+', '—' => '-', '－' => '-', '～' => '-', '：' => ':', '。' => '.', '、' => ',', '，' => '.', '、' => '.', '；' => ';', '？' => '?', '！' => '!', '…' => '-', '‖' => '|', '”' => '"', '“' => '"', '’' => '`', '‘' => '`', '｜' => '|', '〃' => '"', ' ' => ' ','．' => '.'); return strtr($str, $arr);} /** * 下载 * @param [type] $filename [description] * @param string $dir [description] * @return [type] [description] */function downloads($filename,$dir='./'){ $filepath = $dir.$filename; if (!file_exists($filepath)){ header("Content-type: text/html; charset=utf-8"); echo "File not found!"; exit; } else { $file = fopen($filepath,"r"); Header("Content-type: application/octet-stream"); Header("Accept-Ranges: bytes"); Header("Accept-Length: ".filesize($filepath)); Header("Content-Disposition: attachment; filename=".$filename); echo fread($file, filesize($filepath)); fclose($file); }} /** * 创建一个目录树 * @param [type] $dir [description] * @param integer $mode [description] * @return [type] [description] */function mkdirs($dir, $mode = 0777) { if (!is_dir($dir)) { mkdirs(dirname($dir), $mode); return mkdir($dir, $mode); } return true;}#完善cURL功能function xcurl($url,$ref=null,$post=array(),$ua="Mozilla/5.0 (X11; Linux x86_64; rv:2.2a1pre) Gecko/20110324 Firefox/4.2a1pre",$print=false) { $ch = curl_init(); curl_setopt($ch, CURLOPT_AUTOREFERER, true); if(!empty($ref)) { curl_setopt($ch, CURLOPT_REFERER, $ref); } curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_HEADER, 0); curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); if(!empty($ua)) { curl_setopt($ch, CURLOPT_USERAGENT, $ua); } if(count($post) > 0){ curl_setopt($ch, CURLOPT_POST, 1); curl_setopt($ch, CURLOPT_POSTFIELDS, $post); } $output = curl_exec($ch); curl_close($ch); if($print) { print($output); } else { return $output; }}/** * 根据一个时间戳得到详细信息 * @param [type] $time [时间戳] * @return [type] * @author [yangsheng@yahoo.com] */function getDateInfo($time){ $day_of_week_cn=array("日","一","二","三","四","五","六"); //中文星期 $week_of_month_cn = array('','第1周','第2周','第3周','第4周','第5周','第6周');#本月第几周 $tenDays= getTenDays(date('j',$time)); #获得旬 $quarter = getQuarter(date('n',$time),date('Y',$time));# 获取季度 $dimDate = array( 'date_key' => strtotime(date('Y-m-d',$time)), #日期时间戳 'date_day' => date('Y-m-d',$time), #日期YYYY-MM-DD 'current_year' => date('Y',$time),#数字年 'current_quarter' => $quarter['current_quarter'], #季度 'quarter_cn' =>$quarter['quarter_cn'], 'current_month' =>date('n',$time),#月 'month_cn' =>date('Y-m',$time), #月份 'tenday_of_month' =>$tenDays['tenday_of_month'],#数字旬 'tenday_cn' =>$tenDays['tenday_cn'],#中文旬 'week_of_month' =>ceil(date('j',$time)/7), #本月第几周 'week_of_month_cn' =>$week_of_month_cn[ceil(date('j',$time)/7)],#中文当月第几周 'day_of_year' =>date('z',$time)+1, #年份中的第几天 'day_of_month' =>date('j',$time),#得到几号 'day_of_week' =>date('w',$time)>0 ? date('w',$time):7,#星期几 'day_of_week_cn' =>'星期'.$day_of_week_cn[date('w',$time)], ); return $dimDate;} /** * 获得日期是上中下旬 * @param [int] $j [几号] * @return [array] [description] * @author [yangsheng@yahoo.com] */function getTenDays($j){ $j = intval($j); if($j < 1 || $j > 31){ return false;#不是日期 } $tenDays = ceil($j/10); switch ($tenDays) { case 1:#上旬 return array('tenday_of_month'=>1,'tenday_cn'=>'上旬',); break; case 2:#中旬 return array('tenday_of_month'=>2,'tenday_cn'=>'中旬',); break; default:#下旬 return array('tenday_of_month'=>3,'tenday_cn'=>'下旬',); break; } return false;} /** * 根据月份获得当前第几季度 * @param [int] $n [月份] * @param [int] $y [年] * @return [array] [description] */function getQuarter($n,$y=null){ $n = intval($n); if($n < 1 || $n > 12){ return false; #不是月份 } $quarter = ceil($n/3); switch ($quarter) { case 1: #第一季度 return array('current_quarter' => 1, 'quarter_cn'=>$y?$y.'-Q1':'Q1'); break; case 2: #第二季度 return array('current_quarter' => 2, 'quarter_cn'=>$y?$y.'-Q2':'Q2'); break; case 3: #第三季度 return array('current_quarter' => 3, 'quarter_cn'=>$y?$y.'-Q3':'Q3'); break; case 4: #第四季度 return array('current_quarter' => 4, 'quarter_cn'=>$y?$y.'-Q4':'Q4'); break; } return false;} 0 0
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