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Source of: /inc/function.inc.php

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<?php
/**
* Global Function
*
* @author   Avenger <[email protected]>
* @version 1.14 $Id 2003-05-30 10:10:08 $
*/

/**
* 弹出提示框
*
* @access public
* @param string $txt 弹出一个提示框，$txt为要弹出的内容
* @return void
*/
function popbox($txt) {
    echo "<script language='JavaScript'>alert('".$txt."')</script>";
}

/**
* 非法操作警告
*
* @access public
* @param string $C_alert   提示的错误信息
* @param string $I_goback  返回后返回到哪一页,不指定则不返回
* @return void
*/
function alert($C_alert,$I_goback='main.php') {
    if(!empty($I_goback)) {
        echo "<script>alert('$C_alert');window.location.href='$I_goback';</script>";
    } else {
        echo "<script>alert('$C_alert');</script>";
    }
}


/**
* 产生随机字符串
*
* 产生一个指定长度的随机字符串,并返回给用户
*
* @access public
* @param int $len  产生字符串的位数
* @return string
*/
function randstr($len=6) {
    $chars='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-@#~'; // characters to build the password from
    mt_srand((double)microtime()*1000000*getmypid()); // seed the random number generater (must be done)
    $password='';
    while(strlen($password)<$len)
        $password.=substr($chars,(mt_rand()%strlen($chars)),1);
    return $password;
}


/**
* 判断下拉菜音的选取项
*
* 可以判断字符串一和字符串二是否相等.从而使相等的项目在下拉菜单中被选择
*
* @access public
* @param string $str1  要比较的字符串一
* @param string $str2  要比较的字符串二
* @return string       相等返回字符串"selected",否则返回空字符串
*/
function ckselect($str1,$str2) {
    if($str1==$str2) {
        return ' selected';
    }
    return '';
}

/**
* 一个自定义的Ftp函数
*
* @access private
* @return void
*/
function myftp($ftp_server,$ftp_port,$ftp_username,$ftp_password,$ftp_path='/') {
    $ftpid=@ftp_connect($ftp_server,$ftp_port) or die('Connect To Ftp Server Error!');
    @ftp_login($ftpid,$ftp_username,$ftp_password) or die('Login Ftp Error!');
    @ftp_chdir($ftpid,'/wwwroot/'.$ftp_path) or die('Chdir Error!');
    return $ftpid;
}

/**
* 截取中文部分字符串
*
* 截取指定字符串指定长度的函数,该函数可自动判定中英文,不会出现乱码
*
* @access public
* @param string    $str    要处理的字符串
* @param int       $strlen 要截取的长度默认为10
* @param string    $other  是否要加上省略号,默认会加上
* @return string
*/
function showtitle($str,$strlen=10,$other=true) {
    $j = 0;
    for($i=0;$i<$strlen;$i++)
      if(ord(substr($str,$i,1))>0xa0) $j++;
    if($j%2!=0) $strlen++;
    $rstr=substr($str,0,$strlen);
    if (strlen($str)>$strlen && $other) {$rstr.='...';}
    return $rstr;
}

/**
* 制作链接
*
* @access public
* @param string    url         要链接到的网址
* @param string    linktext    显示的链接文字
* @param string    target      目标框架
* @param string    extras      扩展参数
* @return string
*/
function make_link ($url, $linktext=false, $target=false, $extras=false) {
    return sprintf("<a href=\"%s\"%s%s>%s</a>",
        $url,
        ($target ? ' target="'.$target.'"' : ''),
        ($extras ? ' '.$extras : ''),
        ($linktext ? $linktext : $url)
    );
}

/**
* 格式化用户评论
*
* @access public
* @param string
* @return void
*/
function clean_note($text) {
    $text = htmlspecialchars(trim($text));

    /* turn urls into links */
    $text = preg_replace("/((mailto|http|ftp|nntp|news):.+?)(&gt;|\s|\)|\"|\.\s|$)/","<a href=\"\1\">\1</a>\3",$text);

    /* this 'fixing' code will go away eventually. */
    $fixes = array('<br>', '<p>', '</p>');
    reset($fixes);
    while (list(,$f) = each($fixes)) {
        $text = str_replace(htmlspecialchars($f), $f, $text);
        $text = str_replace(htmlspecialchars(strtoupper($f)), $f, $text);
    }
    
    /* <p> tags make things look awfully weird (breaks things out of the <code>
       tag). Just convert them to <br>'s
    */
    $text = str_replace (array ('<P>', '<p>'), '<br>', $text);
    
    /* Remove </p> tags to prevent it from showing up in the note */
    $text = str_replace (array ('</P>', '</p>'), '', $text);

    /* preserve linebreaks */
    $text = str_replace("\n", "<br>", $text);

    /* this will only break long lines */
    if (function_exists("wordwrap")) {
        $text = wordwrap($text);
    }
    
    // Preserve spacing of user notes
    $text = str_replace("  ", " &nbsp;", $text);

    return $text;
}


/**
* 获取图象信息的函数
*
* 一个全面获取图象信息的函数
*
* @access public
* @param string $img 图片路径
* @return array
*/
function getimageinfo($img) {
    $img_info = getimagesize($img);
    switch ($img_info[2]) {
    case 1:
    $imgtype = "GIF";
    break;
    case 2:
    $imgtype = "JPG";
    break;
    case 3:
    $imgtype = "PNG";
    break;
    }
    $img_size = ceil(filesize($img)/1000)."k";
    $new_img_info = array (
        "width"=>$img_info[0],
        "height"=>$img_info[1],
        "type"=>$imgtype,
        "size"=>$img_size
    );
    return $new_img_info;
}

/**
* 计算当前时间
*
* 以微秒为单位返回当前系统的时间
*
* @access public
* @return real
*/
function getmicrotime() {
    $tmp = explode(' ', microtime());
    return (real)$tmp[1]. substr($tmp[0], 1);
}

/**
* 写文件操作
*
* @access public
* @param bool
* @return void
*/
function wfile($file,$content,$mode='w') {
    $oldmask = umask(0);
    $fp = fopen($file, $mode);
    if (!$fp) return false;
    fwrite($fp,$content);
    fclose($fp);
    umask($oldmask);
    return true;
}


/**
* 加载模板文件
*
* @access public
* @return void
*/
function tpl_load($tplfile,$path='./templates/',$empty='remove') {
    global $tpl;

    $path ? '' : $path='./templates/';

    require_once 'HTML/Template/PHPLIB.php';

    $tpl = new Template_PHPLIB($path,$empty);
    
    $tpl->setFile('main',$tplfile);
}


/**
* 模板解析输出
*
* @access public
* @return void
*/
function tpl_output() {
    global $tpl;

    $tpl->parse('output','main');
    $tpl->p('output');
}


/**
* 邮件发送函数
*
* @access public private
* @param bool
* @return void
*/
function mailSender($from, $to, $title, $content) {
    $from ? $from = '[email protected]' : '';
    $title ? $title = 'From Exceed PHP...' : '';
    $sig = "
      感谢您使用我们的服务.\n\n
                                                Exceed PHP(超越PHP)\n
                                                $maildate\n\n

---------------------------------------------------------------------------------------
\n\n
去发现极限方法的唯一办法就是去超越它\n
超越PHP欢迎您(http://www.phpe.net)\n
";
    $content .= $sig;

    if (@_mail($to, $title, $content, "From:$from\nReply-To:$from")) {
        return true;
    } else {
        return false;
    }

}


/**
* UBB解析
*
* @param      none
* @access     public
* @return     void
*/
function ubbParse($txt, $coverhtml=0) {

    if ($coverhtml == 0) $txt = nl2br(htmlspecialchars($txt));  //BR和HTML转换
    //只转换BR，不转换HTML
    if ($coverhtml == 1) {
        if (!preg_match('/^<.+>$/s', $txt) && !preg_match('/<table.+<\/table>/is', $txt)) {
            $txt = strip_tags($txt);
            $txt = nl2br($txt);
        }
    }

    // pre and quote
    $txt = preg_replace( "#\[quote\](.+?)\[/quote\]#is", "<blockquote>\1</blockquote>", $txt );
    $txt = preg_replace( "#\[code\](.+?)\[/code\]#is", "<p class='php'>\1</p>", $txt );

    // Colors 支持篏套
    while( preg_match( "#\[color=([^\]]+)\](.+?)\[/color\]#is", $txt ) ) {
        $txt = preg_replace( "#\[color=([^\]]+)\](.+?)\[/color\]#is", "<span style='color:\1'>\2</span>", $txt );
    }

    // Align
    $txt = preg_replace( "#\[center\](.+?)\[/center\]#is", "<center>\1</center>", $txt );
    $txt = preg_replace( "#\[left\](.+?)\[/left\]#is", "<div align=left>\1</div>", $txt );
    $txt = preg_replace( "#\[right\](.+?)\[/right\]#is", "<div align=right>\1</div>", $txt );

    // Sub & sup
    $txt = preg_replace( "#\[sup\](.+?)\[/sup\]#is", "<sup>\1</sup>", $txt );
    $txt = preg_replace( "#\[sub\](.+?)\[/sub\]#is", "<sub>\1</sub>", $txt );

    // email tags
    // [email][email protected][/email]   [[email protected]]Email me[/email]
    $txt = preg_replace( "#\[email\](\S+?)\[/email\]#i"                                                                , "<a href='mailto:\1'>\1</a>", $txt );
    $txt = preg_replace( "#\[email\s*=\s*\&quot\;([\.\w\-]+\@[\.\w\-]+\.[\.\w\-]+)\s*\&quot\;\s*\](.*?)\[\/email\]#i"  , "<a href='mailto:\1'>\2</a>", $txt );
    $txt = preg_replace( "#\[email\s*=\s*([\.\w\-]+\@[\.\w\-]+\.[\w\-]+)\s*\](.*?)\[\/email\]#i"                       , "<a href='mailto:\1'>\2</a>", $txt );

    // url tags
    // [url]http://www.phpe.net[/url]   [url=http://www.phpe.net]Exceed PHP![/url]
    $txt = preg_replace( "#\[url\](\S+?)\[/url\]#i"                                       , "<a href='\1' target='_blank'>\1</a>", $txt );
    $txt = preg_replace( "#\[url\s*=\s*\&quot\;\s*(\S+?)\s*\&quot\;\s*\](.*?)\[\/url\]#i" , "<a href='\1' target='_blank'>\2</a>", $txt );
    $txt = preg_replace( "#\[url\s*=\s*(\S+?)\s*\](.*?)\[\/url\]#i"                       , "<a href='\1' target='_blank'>\2</a>", $txt );

    // Start off with the easy stuff
    $txt = preg_replace( "#\[b\](.+?)\[/b\]#is", "<b>\1</b>", $txt );
    $txt = preg_replace( "#\[i\](.+?)\[/i\]#is", "<i>\1</i>", $txt );
    $txt = preg_replace( "#\[u\](.+?)\[/u\]#is", "<u>\1</u>", $txt );
    $txt = preg_replace( "#\[s\](.+?)\[/s\]#is", "<s>\1</s>", $txt );

    // Images
    $txt = preg_replace( "#\[img\](.+?)\[/img\]#i", "<a href='\1' target='_blank'><img alt='Click to fullsize' src='\1' border='0' onload='javascript:if(this.width>500) this.width=500' align='center' hspace='10' vspace='10'></a><br />", $txt );
    
    // Attach
    $txt = preg_replace( "#\[attach\s*=\s*\&quot\;\s*(\S+?)\s*\&quot\;\s*\](.*?)\[\/attach\]#i" , "<a href='\2' target='_blank'><b>相关附件：</b>\1</a>", $txt );
    $txt = preg_replace( "#\[attach\s*=\s*(\S+?)\s*\](.*?)\[\/attach\]#i"                       , "<a href='\2' target='_blank'><b>相关附件：</b>\1</a>", $txt );

    // Iframe
    $txt = preg_replace( "#\[iframe\](.+?)\[/iframe\]#i", "<div align='center'><iframe src='\1' style='width:96%;height:400px'></iframe><br clear='all'><a href='\1' target='_blank'>在新窗口打开链接</a></div>", $txt );

    // (c) (r) and (tm)
    $txt = preg_replace( "#\(c\)#i"     , "&copy;" , $txt );
    $txt = preg_replace( "#\(tm\)#i"    , "&#153;" , $txt );
    $txt = preg_replace( "#\(r\)#i"     , "&reg;"  , $txt );
    
    return $txt;
}
?>

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