php常用的一些方法

摘要：有可能我们用的一些框架已经帮助我们封装好了这些方法，我们平常经常用到获取地址创建目录之类的方法，但是我还是想摘出来放在下面，可能大家已经都已经熟悉了。

有可能我们用的一些框架已经帮助我们封装好了这些方法，我们平常经常用到获取ip地址、创建目录之类的方法，但是我还是想摘出来放在下面，可能大家已经都已经熟悉了。

 * @copyright     Copyright (c) 2007-2013 bagesoft. All rights reserved.
 * @link          http://www.bagecms.com
 * @package       BageCMS.Tools
 * @license       http://www.bagecms.com/license
 * @version       v3.1.0
 */

class XUtils {

    /**
     * 友好显示var_dump
     */
    static public function dump( $var, $echo = true, $label = null, $strict = true ) {
        $label = ( $label === null ) ? "" : rtrim( $label ) . " ";
        if ( ! $strict ) {
            if ( ini_get( "html_errors" ) ) {
                $output = print_r( $var, true );
                $output = "
" . $label . htmlspecialchars( $output, ENT_QUOTES ) . "
";
            } else {
                $output = $label . print_r( $var, true );
            }
        } else {
            ob_start();
            var_dump( $var );
            $output = ob_get_clean();
            if ( ! extension_loaded( "xdebug" ) ) {
                $output = preg_replace( "/]=>
(s+)/m", "] => ", $output );
                $output = "
" . $label . htmlspecialchars( $output, ENT_QUOTES ) . "
";
            }
        }
        if ( $echo ) {
            echo $output;
            return null;
        } else
            return $output;
    }

    /**
     * 获取客户端IP地址
     */
    static public function getClientIP() {
        static $ip = NULL;
        if ( $ip !== NULL )
            return $ip;
        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;
    }

    /**
     * 循环创建目录
     */
    static public function mkdir( $dir, $mode = 0777 ) {
        if ( is_dir( $dir ) || @mkdir( $dir, $mode ) )
            return true;
        if ( ! mk_dir( dirname( $dir ), $mode ) )
            return false;
        return @mkdir( $dir, $mode );
    }

    /**
     * 格式化单位
     */
    static public function byteFormat( $size, $dec = 2 ) {
        $a = array ( "B" , "KB" , "MB" , "GB" , "TB" , "PB" );
        $pos = 0;
        while ( $size >= 1024 ) {
            $size /= 1024;
            $pos ++;
        }
        return round( $size, $dec ) . " " . $a[$pos];
    }

    /**
     * 下拉框，单选按钮 自动选择
     *
     * @param $string 输入字符
     * @param $param  条件
     * @param $type   类型
     *            selected checked
     * @return string
     */
    static public function selected( $string, $param = 1, $type = "select" ) {

        if ( is_array( $param ) ) {
            $true = in_array( $string, $param );
        }elseif ( $string == $param ) {
            $true = true;
        }
        if ( $true )
            $return = $type == "select" ? "selected="selected"" : "checked="checked"";

        echo $return;
    }

    /**
     * 获得来源类型 post get
     *
     * @return unknown
     */
    static public function method() {
        return strtoupper( isset( $_SERVER["REQUEST_METHOD"] ) ? $_SERVER["REQUEST_METHOD"] : "GET" );
    }

    /**
     * 提示信息
     */
    static public function message( $action = "success", $content = "", $redirect = "", $timeout = 3 ) {

        $url = $redirect;
        switch ( $action ) {
        case "success": 
            $vars = array("titler"=>"操作完成", "class"=>"success","status"=>"✔"); 
            break;
        case "error": 
            $vars = array("titler"=>"操作未完成", "class"=>"error","status"=>"✘"); 
            break;
        case "errorBack": 
            $vars = array("titler"=>"操作未完成", "class"=>"error","status"=>"✘"); 
            break;
        case "redirect":  header( "Location:$url" ); break;
        case "script":
            exit( "" );
            break;
        }
        if($action !="errorBack")
            $script = "
系统自动跳转在 ".$timeout." 秒钟后，如果不想等待 > 点击这里跳转";
        else
            $script = "[点这里返回上一页]";
        $body = "
".$vars["status"]."
".$content."
".$script."
";
        exit ( $body  );
    }

    /**
     * 查询字符生成
     */
    static public function buildCondition( array $getArray, array $keys = array() ) {
        if ( $getArray ) {
            foreach ( $getArray as $key => $value ) {
                if ( in_array( $key, $keys ) && $value ) {
                    $arr[$key] = CHtml::encode(strip_tags($value));
                }
            }
            return $arr;
        }
    }

    /**
     * base64_encode
     */
    static function b64encode( $string ) {
        $data = base64_encode( $string );
        $data = str_replace( array ( "+" , "/" , "=" ), array ( "-" , "_" , "" ), $data );
        return $data;
    }

    /**
     * base64_decode
     */
    static function b64decode( $string ) {
        $data = str_replace( array ( "-" , "_" ), array ( "+" , "/" ), $string );
        $mod4 = strlen( $data ) % 4;
        if ( $mod4 ) {
            $data .= substr( "====", $mod4 );
        }
        return base64_decode( $data );
    }

    /**
     * 验证邮箱
     */
    public static function email( $str ) {
        if ( empty( $str ) )
            return true;
        $chars = "/^([a-z0-9+_]|-|.)+@(([a-z0-9_]|-)+.)+[a-z]{2,6}$/i";
        if ( strpos( $str, "@" ) !== false && strpos( $str, "." ) !== false ) {
            if ( preg_match( $chars, $str ) ) {
                return true;
            } else {
                return false;
            }
        } else {
            return false;
        }
    }
    
    /**
     * 验证手机号码
     */
    public static function mobile( $str ) {
        if ( empty( $str ) ) {
            return true;
        }

        return preg_match( "#^13[d]{9}$|14^[0-9]d{8}|^15[0-9]d{8}$|^18[0-9]d{8}$#", $str );
    }
    
    /**
     * 验证固定电话
     */
    public static function tel( $str ) {
        if ( empty( $str ) ) {
            return true;
        }
        return preg_match( "/^(((d{2,3}))|(d{3}-))?((0d{2,3})|0d{2,3}-)?[1-9]d{6,7}(-d{1,4})?$/", trim( $str ) );

    }
    
    /**
     * 验证qq号码
     */
    public static function qq( $str ) {
        if ( empty( $str ) ) {
            return true;
        }

        return preg_match( "/^[1-9]d{4,12}$/", trim( $str ) );
    }

    /**
     * 验证邮政编码
     */
    public static function zipCode( $str ) {
        if ( empty( $str ) ) {
            return true;
        }

        return preg_match( "/^[1-9]d{5}$/", trim( $str ) );
    }
    
    /**
     * 验证ip
     */
    public static function ip( $str ) {
        if ( empty( $str ) )
            return true;

        if ( ! preg_match( "#^d{1,3}.d{1,3}.d{1,3}.d{1,3}$#", $str ) ) {
            return false;
        }

        $ip_array = explode( ".", $str );

        //真实的ip地址每个数字不能大于255（0-255）
        return ( $ip_array[0] <= 255 && $ip_array[1] <= 255 && $ip_array[2] <= 255 && $ip_array[3] <= 255 ) ? true : false;
    }

    /**
     * 验证身份证(中国)
     */
    public static function idCard( $str ) {
        $str = trim( $str );
        if ( empty( $str ) )
            return true;

        if ( preg_match( "/^([0-9]{15}|[0-9]{17}[0-9a-z])$/i", $str ) )
            return true;
        else
            return false;
    }

    /**
     * 验证网址
     */
    public static function url( $str ) {
        if ( empty( $str ) )
            return true;

        return preg_match( "#(http|https|ftp|ftps)://([w-]+.)+[w-]+(/[w-./?%&=]*)?#i", $str ) ? true : false;
    }

    /**
     * 根据ip获取地理位置
     * @param $ip
     * return :ip,beginip,endip,country,area
     */
    public static function getlocation( $ip = "" ) {
        $ip = new XIp();
        $ipArr = $ip->getlocation( $ip );
        return $ipArr;
    }

    /**
     * 中文转换为拼音
     */
    public static function pinyin( $str ) {
        $ip = new XPinyin();
        return $ip->output( $str );
    }

    /**
     * 拆分sql
     *
     * @param $sql
     */
    public static function splitsql( $sql ) {
         $sql = preg_replace("/TYPE=(InnoDB|MyISAM|MEMORY)( DEFAULT CHARSET=[^; ]+)?/", "ENGINE=1 DEFAULT CHARSET=" . Yii::app()->db->charset, $sql);
        $sql = str_replace("
", "
", $sql);
        $ret = array ();
        $num = 0;
        $queriesarray = explode(";
", trim($sql));
        unset($sql);
        foreach ($queriesarray as $query) {
            $ret[$num] = "";
            $queries = explode("
", trim($query));
            $queries = array_filter($queries);
            foreach ($queries as $query) {
                $str1 = substr($query, 0, 1);
                if ($str1 != "#" && $str1 != "-")
                    $ret[$num] .= $query;
            }
            $num ++;
        }
        return ($ret);
    }

    /**
     * 字符截取
     *
     * @param $string
     * @param $length
     * @param $dot
     */
    public static function cutstr( $string, $length, $dot = "...", $charset = "utf-8" ) {
        if ( strlen( $string ) <= $length )
            return $string;

        $pre = chr( 1 );
        $end = chr( 1 );
        $string = str_replace( array ( "&" , """ , "<" , ">" ), array ( $pre . "&" . $end , $pre . """ . $end , $pre . "<" . $end , $pre . ">" . $end ), $string );

        $strcut = "";
        if ( strtolower( $charset ) == "utf-8" ) {

            $n = $tn = $noc = 0;
            while ( $n < strlen( $string ) ) {

                $t = ord( $string[$n] );
                if ( $t == 9 || $t == 10 || ( 32 <= $t && $t <= 126 ) ) {
                    $tn = 1;
                    $n ++;
                    $noc ++;
                } elseif ( 194 <= $t && $t <= 223 ) {
                    $tn = 2;
                    $n += 2;
                    $noc += 2;
                } elseif ( 224 <= $t && $t <= 239 ) {
                    $tn = 3;
                    $n += 3;
                    $noc += 2;
                } elseif ( 240 <= $t && $t <= 247 ) {
                    $tn = 4;
                    $n += 4;
                    $noc += 2;
                } elseif ( 248 <= $t && $t <= 251 ) {
                    $tn = 5;
                    $n += 5;
                    $noc += 2;
                } elseif ( $t == 252 || $t == 253 ) {
                    $tn = 6;
                    $n += 6;
                    $noc += 2;
                } else {
                    $n ++;
                }

                if ( $noc >= $length ) {
                    break;
                }

            }
            if ( $noc > $length ) {
                $n -= $tn;
            }

            $strcut = substr( $string, 0, $n );

        } else {
            for ( $i = 0; $i < $length; $i ++ ) {
                $strcut .= ord( $string[$i] ) > 127 ? $string[$i] . $string[++ $i] : $string[$i];
            }
        }

        $strcut = str_replace( array ( $pre . "&" . $end , $pre . """ . $end , $pre . "<" . $end , $pre . ">" . $end ), array ( "&" , """ , "<" , ">" ), $strcut );

        $pos = strrpos( $strcut, chr( 1 ) );
        if ( $pos !== false ) {
            $strcut = substr( $strcut, 0, $pos );
        }
        return $strcut . $dot;
    }

    /**
     * 描述格式化
     * @param  $subject
     */
    public static function clearCutstr ($subject, $length = 0, $dot = "...", $charset = "utf-8")
    {
        if ($length) {
            return XUtils::cutstr(strip_tags(str_replace(array ("
" ), "", $subject)), $length, $dot, $charset);
        } else {
            return strip_tags(str_replace(array ("
" ), "", $subject));
        }
    }

    /**
     * 检测是否为英文或英文数字的组合
     *
     * @return unknown
     */
    public static function isEnglist( $param ) {
        if ( ! eregi( "^[A-Z0-9]{1,26}$", $param ) ) {
            return false;
        } else {
            return true;
        }
    }

    /**
     * 将自动判断网址是否加http://
     *
     * @param $http
     * @return  string
     */
    public static function convertHttp( $url ) {
        if ( $url == "http://" || $url == "" )
            return "";

        if ( substr( $url, 0, 7 ) != "http://" && substr( $url, 0, 8 ) != "https://" )
            $str = "http://" . $url;
        else
            $str = $url;
        return $str;

    }

    /*
        标题样式格式化
    */
    public static function titleStyle( $style ) {
        $text = "";
        if ( $style["bold"] == "Y" ) {
            $text .="font-weight:bold;";
            $serialize["bold"] = "Y";
        }

        if ( $style["underline"] == "Y" ) {
            $text .="text-decoration:underline;";
            $serialize["underline"] = "Y";
        }

        if ( !empty( $style["color"] ) ) {
            $text .="color:#".$style["color"].";";
            $serialize["color"] = $style["color"];
        }

        return array( "text" => $text, "serialize"=>empty( $serialize )? "": serialize( $serialize ) );

    }

     // 自动转换字符集 支持数组转换
    static public function autoCharset ($string, $from = "gbk", $to = "utf-8")
    {
        $from = strtoupper($from) == "UTF8" ? "utf-8" : $from;
        $to = strtoupper($to) == "UTF8" ? "utf-8" : $to;
        if (strtoupper($from) === strtoupper($to) || empty($string) || (is_scalar($string) && ! is_string($string))) {
            //如果编码相同或者非字符串标量则不转换
            return $string;
        }
        if (is_string($string)) {
            if (function_exists("mb_convert_encoding")) {
                return mb_convert_encoding($string, $to, $from);
            } elseif (function_exists("iconv")) {
                return iconv($from, $to, $string);
            } else {
                return $string;
            }
        } elseif (is_array($string)) {
            foreach ($string as $key => $val) {
                $_key = self::autoCharset($key, $from, $to);
                $string[$_key] = self::autoCharset($val, $from, $to);
                if ($key != $_key)
                    unset($string[$key]);
            }
            return $string;
        } else {
            return $string;
        }
    }

    /*
        标题样式恢复
    */
    public static function titleStyleRestore( $serialize, $scope = "bold" ) {
        $unserialize = unserialize( $serialize );
        if ( $unserialize["bold"] =="Y" && $scope == "bold" )
            return "Y";
        if ( $unserialize["underline"] =="Y" && $scope == "underline" )
            return "Y";
        if ( $unserialize["color"] && $scope == "color" )
            return $unserialize["color"];

    }

    /**
     * 列出文件夹列表
     *
     * @param $dirname
     * @return unknown
     */
    public static function getDir( $dirname ) {
        $files = array();
        if ( is_dir( $dirname ) ) {
            $fileHander = opendir( $dirname );
            while ( ( $file = readdir( $fileHander ) ) !== false ) {
                $filepath = $dirname . "/" . $file;
                if ( strcmp( $file, "." ) == 0 || strcmp( $file, ".." ) == 0 || is_file( $filepath ) ) {
                    continue;
                }
                $files[] =  self::autoCharset( $file, "GBK", "UTF8" );
            }
            closedir( $fileHander );
        }
        else {
            $files = false;
        }
        return $files;
    }

    /**
     * 列出文件列表
     *
     * @param $dirname
     * @return unknown
     */
    public static function getFile( $dirname ) {
        $files = array();
        if ( is_dir( $dirname ) ) {
            $fileHander = opendir( $dirname );
            while ( ( $file = readdir( $fileHander ) ) !== false ) {
                $filepath = $dirname . "/" . $file;

                if ( strcmp( $file, "." ) == 0 || strcmp( $file, ".." ) == 0 || is_dir( $filepath ) ) {
                    continue;
                }
                $files[] = self::autoCharset( $file, "GBK", "UTF8" );;
            }
            closedir( $fileHander );
        }
        else {
            $files = false;
        }
        return $files;
    }


    /**
     * [格式化图片列表数据]
     *
     * @return [type] [description]
     */
    public static function imageListSerialize( $data ) {

        foreach ( (array)$data["file"] as $key => $row ) {
            if ( $row ) {
                $var[$key]["fileId"] = $data["fileId"][$key];
                $var[$key]["file"] = $row;
            }

        }
        return array( "data"=>$var, "dataSerialize"=>empty( $var )? "": serialize( $var ) );

    }

    /**
     * 反引用一个引用字符串
     * @param  $string
     * @return string
     */
    static function stripslashes($string) {
        if(is_array($string)) {
            foreach($string as $key => $val) {
                $string[$key] = self::stripslashes($val);
            }
        } else {
            $string = stripslashes($string);
        }
        return $string;
    }
    
    /**
     * 引用字符串
     * @param  $string
     * @param  $force
     * @return string
     */
   static function addslashes($string, $force = 1) {
        if(is_array($string)) {
            foreach($string as $key => $val) {
                $string[$key] = self::addslashes($val, $force);
            }
        } else {
            $string = addslashes($string);
        }
        return $string;
    }

    /**
     * 格式化内容
     */
    static function formatHtml($content, $options = ""){
        $purifier = new CHtmlPurifier();
        if($options != false)
            $purifier->options = $options;
        return $purifier->purify($content);
    }
}

?>