对于ThinkPHP的截取字符串函数无法显示省略号的情况,解决方法如下:
打开Common/extend.php页面,修改msubstr函数如下:
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function msubstr( $str , $start =0, $length , $charset = "utf-8" , $suffix =true)
{
if (function_exists( "mb_substr" )) {
if ( $suffix )
{
if ( $str ==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 )
{
if ( $str ==iconv_substr( $str , $start , $length , $charset ))
{
return iconv_substr( $str , $start , $length , $charset );
}
else
{
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 . "…" ;
return $slice ;
}
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