Tp5自定义标签

 'taglib_build_in'    => 'cx,tags', // 内置标签库名称(标签使用不必指定标签库名称),以逗号分隔 注意解析顺序

<?php

namespace think emplate aglib;

use think emplateTagLib;

class Tags extends TagLib{

/**

* 定义标签列表

*/

protected $tags = [

'sel' => ['attr' => 'table,id,where,order,limit,field,page'],

'find' => ['attr' => 'table,id,where,field'],

'val' => ['attr' => 'table,where,value,getdata','close' => 0],
];
/**

* volist标签解析 循环输出数据集

* 格式：

* {volist name="userList" id="user" empty=""}

* {user.username}

* {user.email}

* {/volist}

* @access public

* @param array $tag 标签属性

* @param string $content 标签内容

* @return string|void

*/

public function tagsel($tag, $content)

{
$table = $tag['table'];

$id = isset($tag['id'])?$tag['id']:'vo';

$where = isset($tag['where'])?$tag['where']:'[]';

$order = isset($tag['order'])?$tag['order']:'id desc';

$limit = !empty($tag['limit']) ? $tag['limit'] : '0';

$field = isset($tag['field'])?$tag['field']:'*';

$page = isset($tag['page'])?$tag['page']:false;
if($page){
$pa=input('');
if($pa){
foreach($pa as $key => $val){
$string[$key] = stripslashes($val);
}
$pa = $string;
}else{
$pa=[];
}
$querys= var_export(['query'=>$pa,'var_page'=>$page],TRUE);
}else{
$querys='[]';
}
$parseStr = '<?php ';
//查看是否存在model类

$file=[APP_PATH.'common/model/'.ucfirst($table).'.php',APP_PATH.request()->module().'model/'.ucfirst($table).'.php'];

if(file_exists($file[0])) $parseStr .= '$db=model("appcommonmodel\'.ucfirst($table).'");';

if(file_exists($file[1])) $parseStr .= '$db=model(app\'.request()->module().'model\'.ucfirst($table).');';

if(!file_exists($file[0]) && !file_exists($file[1])){

$parseStr .= '$db=db("'.$table.'");';

}
$parseStr .= $page?"$seldata=$db->where($where)->field('$field')->order('$order')->paginate('$limit',false,$querys);":"$seldata=$db->where($where)->field('$field')->order('$order')->limit('$limit')->select();";

// 设置了输出数组长度

$parseStr .= 'foreach($seldata as $key=>$' . $id . '): ?>';

$parseStr .= $content;

$parseStr .= '<?php endforeach; ?> ';

if ($page) {

$parseStr .= '<?php $' . $page . ' = $seldata->render(); ?>';

}

if (!empty($parseStr)) {
return $parseStr;

}

return;

}

public function tagfind($tag, $content){

$table = $tag['table'];

$id = isset($tag['id'])?$tag['id']:'vo';

$where = isset($tag['where'])?$tag['where']:'[]';

$field = isset($tag['field'])?$tag['field']:'*';

$parseStr = '<?php ';

//查看是否存在model类

$file=[APP_PATH.'common/model/'.ucfirst($table).'.php',APP_PATH.request()->module().'model/'.ucfirst($table).'.php'];

if(file_exists($file[0])) $parseStr .= '$db=model("appcommonmodel\'.ucfirst($table).'");';

if(file_exists($file[1])) $parseStr .= '$db=model(app\'.request()->module().'model\'.ucfirst($table).');';

if(!file_exists($file[0]) && !file_exists($file[1])){

$parseStr .= '$db=db("'.$table.'");';

}

$parseStr .= '$'.$id."=$db->where($where)->field('$field')->find(); ?>";

$parseStr .= $content;

if (!empty($parseStr)) {

return $parseStr;

}

return;

}

public function tagval($tag){

$table = $tag['table'];

$where = isset($tag['where'])?$tag['where']:'[]';

$value = isset($tag['value'])?$tag['value']:'id';

$getdata = isset($tag['getdata'])?$tag['getdata']:false;

$parseStr = '<?php ';

//查看是否存在model类

$file=[APP_PATH.'common/model/'.ucfirst($table).'.php',APP_PATH.request()->module().'model/'.ucfirst($table).'.php'];

if(file_exists($file[0])) $parseStr .= '$db=model("appcommonmodel\'.ucfirst($table).'");';

if(file_exists($file[1])) $parseStr .= '$db=model(app\'.request()->module().'model\'.ucfirst($table).');';

if(file_exists($file[1])) $parseStr .= 'use app\'.request()->module().'model\'.ucfirst($table).'; $db=model("'.ucfirst($table).'");';

if(!file_exists($file[0]) && !file_exists($file[1])){

$parseStr .= '$db=db("'.$table.'");';

}

$parseStr .= "$arr=$db->where($where)->field('$value')->find(); ";

$parseStr .= $getdata ?'echo $arr->getdata("'.$value.'");?>' :'echo $arr["'.$value.'"];?>';

if (!empty($parseStr)) {

return $parseStr;

}

return;

}

}