TP模版中自定义函数及一些小bug

Nov 12, 2018 Eric Guo    1034

摘要：在TP模版中可以使用自己在function中写的函数，这里写了一个自定义的截取字符串的函数，支持中文及其他编码

截取字符串函数

<td>{$vo.apply_date|e_msubstr=0,10}</td>
方法为：
    /**
     * TODO 字符串截取，支持中文和其他编码
     * static
     * access public
     * @param string $str 需要转换的字符串
     * @param string $start 开始位置
     * @param string $length 截取长度
     * @param string $charset 编码格式
     * @param string $suffix 截断显示字符
     * return string
     */
    function e_msubstr($str, $start=0, $length, $charset="utf-8", $suffix=true)
    {
        if(function_exists("mb_substr")){
            if($suffix)
                if(mb_strlen($str,"utf-8") > $length)
                    //return mb_substr($str, $start, $length, $charset)."...";
                    return mb_substr($str, $start, $length, $charset);
                else
                    return mb_substr($str, $start, $length, $charset);
            else
                return mb_substr($str, $start, $length, $charset);
        }
        elseif(function_exists('iconv_substr')) {
            if($suffix)
                //return iconv_substr($str,$start,$length,$charset)."...";
                return iconv_substr($str,$start,$length,$charset);
            else
                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 $slice."…";
        if($suffix) return $slice;
        return $slice;
    }

foreach和volist默认支持三层超过就会不执行

可以通过更改LibraryThinkTemplateTagLib下的Cx.class.php文件实现多层

    // 标签定义
    protected $tags   =  array(
        // 标签定义： attr 属性列表 close 是否闭合（0 或者1 默认1） alias 标签别名 level 嵌套层次
        'php'       =>  array(),
        'volist'    =>  array('attr'=>'name,id,offset,length,key,mod','level'=>5,'alias'=>'iterate'),
        'foreach'   =>  array('attr'=>'name,item,key','level'=>5),
        'if'        =>  array('attr'=>'condition','level'=>2),
        'elseif'    =>  array('attr'=>'condition','close'=>0),
        'else'      =>  array('attr'=>'','close'=>0),
        'switch'    =>  array('attr'=>'name','level'=>2),
        'case'      =>  array('attr'=>'value,break'),
        'default'   =>  array('attr'=>'','close'=>0),
        'compare'   =>  array('attr'=>'name,value,type','level'=>3,'alias'=>'eq,equal,notequal,neq,gt,lt,egt,elt,heq,nheq'),
        'range'     =>  array('attr'=>'name,value,type','level'=>3,'alias'=>'in,notin,between,notbetween'),
        'empty'     =>  array('attr'=>'name','level'=>3),
        'notempty'  =>  array('attr'=>'name','level'=>3),
        'present'   =>  array('attr'=>'name','level'=>3),
        'notpresent'=>  array('attr'=>'name','level'=>3),
        'defined'   =>  array('attr'=>'name','level'=>3),
        'notdefined'=>  array('attr'=>'name','level'=>3),
        'import'    =>  array('attr'=>'file,href,type,value,basepath','close'=>0,'alias'=>'load,css,js'),
        'assign'    =>  array('attr'=>'name,value','close'=>0),
        'define'    =>  array('attr'=>'name,value','close'=>0),
        'for'       =>  array('attr'=>'start,end,name,comparison,step', 'level'=>3),
        );
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