php smarty函数扩展

发布时间：2020-12-13 05:40:50 所属栏目：PHP教程来源：网络整理

导读：中文截取 modifier.cn_truncate.php 代码如下: function smarty_modifier_cn_truncate($string,$strlen = 20,$etc = '...', $keep_first_style = false) { $strlen = $strlen*2; $string = trim($string); if ( strlen($string) return $string; } $str = st

中文截取 modifier.cn_truncate.php

代码如下:

function smarty_modifier_cn_truncate($string,$strlen = 20,$etc = '...',
$keep_first_style = false) 
{ 
$strlen = $strlen*2; 
$string = trim($string); 
if ( strlen($string) <= $strlen ) { 
return $string; 
} 
$str = strip_tags($string); 
$j = 0; 
for($i=0;$i<$strlen;$i++) { 
if(ord(substr($str,$i,1))>0xa0) $j++; 
} 
if($j%2!=0) $strlen++; 
$rstr=substr($str,$strlen); 
if (strlen($str)>$strlen ) {$rstr .= $etc;} 
if ( $keep_first_style == true && ereg('^<(.*)>$',$string) ) { 
if ( strlen($str) <= $strlen ) { 
return $string; 
} 
$start_pos = strpos($string,substr($str,4)); 
$end_pos = strpos($string,-4)); 
$end_pos = $end_pos+4; 
$rstr = substr($string,$start_pos) . $rstr . substr($string,$end_pos,strlen($string)); 
} 
return $rstr; 
} 

modifier.ubb.php

代码如下:

function smarty_modifier_ubb($str) {
$ubbs['quote'][0] = '/[quote](.*?)[/quote]/s';
$ubbs['quote'][1] = '

引用:
1

';
$ubbs['b'][0] = '/[b](.*?)[/b]/s';
$ubbs['b'][1] = '1';
$ubbs['i'][0] = '/[i](.*?)[/i]/s';
$ubbs['i'][1] = '1';
$ubbs['u'][0] = '/[u](.*?)[/u]/s';
$ubbs['u'][1] = '1';
$ubbs['li'][0] = '/[li](.*?)[/li]/s';
$ubbs['li'][1] = '

';
$ubbs['img'][0] = '/[img](.*?)[/img]/s';
$ubbs['img'][1] = '

$ubbs['img2'][0] = '/[img=([^,]+),([^]]+)](.*?)[/img]/s';
$ubbs['img2'][1] = '$ubbs['url'][0] = '/[url](.*?)[/url]/s';
$ubbs['url'][1] = '';
$ubbs['url2'][0] = '/[url=([^]]+)](.*?)[/url]/s';
$ubbs['url2'][1] = '';
$ubbs['email'][0] = '/[email=([^]]+)](.*?)[/email]/s';
$ubbs['email'][1] = '';
$ubbs['qq'][0] = '/[qq]([0-9]{5,10})[/qq]/s';
$ubbs['qq'][1] = '';
$ubbs['color'][0] = '/[color=([^]]+)](.*?)[/color]/s';
$ubbs['color'][1] = '$ubbs['font'][0] = '/[font=([^]]+)](.*?)[/font]/s';
$ubbs['font'][1] = '$ubbs['size'][0] = '/[size=([0-9]+)](.*?)[/size]/s';
$ubbs['size'][1] = '$ubbs['sizept'][0] = '/[size=([0-9,pt]+)](.*?)[/size]/s';
$ubbs['sizept'][1] = '$ubbs['align'][0] = '/[align=([^]]+)](.*?)[/align]/s';
$ubbs['align'][1] = '

$ubbs['media'][0] = '/[media](.*?)[/media]/s';
$ubbs['media'][1] = '

';
$ubbs['list'][0] = '/[list](.*?)[/list]/s';
$ubbs['list'][1] = '

1';
$ubbs['list2'][0] = '/[list=([0-9]+)](.*?)[/list]/s';
$ubbs['list2'][1] = '

2';
$ubbs['indent'][0] = '/[indent](.*?)[/indent]/s';
$ubbs['indent'][1] = '

$ubbs['table'][0] = '/[table([=,0-9,%]*)](.*?)[/table]/s';
$ubbs['table'][1] = '$ubbs['tr'][0] = '/[tr](.*?)[/tr]/s';
$ubbs['tr'][1] = '$ubbs['td'][0] = '/[td](.*?)[/td]/s';
$ubbs['td'][1] = '

$ubbs['td2'][0] = '/[td([^(]|[)]+)](.*?)[/td]/s';
$ubbs['td2'][1] = '

$str = str_replace('[*]','

',$str);
foreach ($ubbs as $ubb){
$str = ubb_replace($ubb[0],$ubb[1],$str);
}
return $str;
}
function ubb_replace($pattern,$replacement,$str){
do {
$str_ret = $str;
$str = preg_replace($pattern,$str);
}while($$str);
return $str_ret;
}
?>

编码 modifier.unescape.php

代码如下:

function smarty_modifier_unescape($str) 
{ 
$str = rawurldecode($str); 
preg_match_all("/(?:%u.{4})|[^%]+/",$str,$r); 
$ar = $r[0]; 
foreach($ar as $k=>$v) { 
if(substr($v,2) == "%u" && strlen($v) == 6) 
$ar[$k] = iconv("UCS-2","GB2312",@pack("H4",substr($v,-4))); 
} 
return join("",$ar); 
} 

（编辑：李大同）

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