在一段php代码里加个if语句

Question

if ($vod['vod_area'] = '中国 ')才采集，其它的不采，请问完整代码怎么写，需要加在哪个位置，高手帮忙下，谢谢了
代码有点长还有一部分在回复里
<?php
class CollectAction extends BaseAction{
// 栏目分类转换
    public function change(){
$change_content = trim(F('_collect/change'));
$this->assign('change_content',$change_content);
        $this->display('./Public/system/collect_change.html');
    }
// 栏目分类转换保存
    public function changeup(){
F('_collect/change',trim($_POST["content"]));
$array_rule = explode(chr(13),trim($_POST["content"]));
foreach($array_rule as $key => $listvalue){
$arrlist = explode('|',trim($listvalue));
$array[$arrlist[0]] = intval($arrlist[1]);
}
F('_collect/change_array',$array);
$this->assign("jumpUrl",'?s=Admin-Collect-Change');
$this->success('栏目转换规则编辑成功！');
}
// 栏目分类转换保存
    public function test(){

}
// 采集节点列表
    public function show(){
dump('2.0正式版才推出。');
exit();
    $rs = M("Collect");
$list = $rs->order('collect_id desc')->select();
$this->assign('list_collect',$list);
        $this->display('./Public/system/collect_show.html');
    }
// 添加编辑采集节点
    public function add(){
$rs = M("Collect");
$collect_id = intval($_GET['id']);
if($collect_id){
            $where['collect_id'] = $collect_id;
$array = $rs->where($where)->find();
$array['collect_replace'] = explode('|||',$array['collect_replace']);
$array['collect_tpltitle'] = '修改';
}else{
    $array['collect_id'] = 0;
    $array['collect_encoding'] = '2312';
$array['collect_player'] = 'qvod';
$array['collect_savepic'] = 0;
$array['collect_order'] = 0;
$array['collect_pagetype'] = 1;
$array['collect_pagesid'] = 1;
$array['collect_pageeid'] = 9;
$array['collect_tpltitle'] = '添加';
}
$array['collect_step'] = intval($_GET['step']);
$this->ppvod_play();
$this->assign($array);
$this->assign('listtree',F('_ppvod/listvod'));
$this->display('./Public/system/collect_add.html');
    }
// 采集节点数据入库
public function insert() {
$rs = D("Collect");
if($rs->create()){
    $id = $rs->add();
if(false !==  $id){
    //$this->f_replace($_POST['collect_replace'],$id);
redirect('?s=Admin-Collect-Add-id-'.$id.'-step-2');
}else{
$this->error('数据写入错误');
}
}else{
    $this->error($rs->getError());
}
}
// 更新数据库信息
public function update(){
if(empty($_POST['collect_savepic'])){
$_POST['collect_savepic'] = 0;
}
if(empty($_POST['collect_order'])){
$_POST['collect_order'] = 0;
}
$rs = D("Collect");
if($rs->create()){
$id = intval($_POST['collect_id']);
if(false !==  $rs->save()){
//F('_collects/id_'.$id,NULL);
//F('_collects/id_'.$id.'_rule',NULL);
//$this->f_replace($_POST['collect_replace'],$id);
$this->assign("jumpUrl",'?s=Admin-Collect-Caiji-ids-'.$id.'-tid-2');
$this->success('采集规则更新成功,测试一下是否能正常采集！');
}else{
$this->error("没有更新任何数据！");
}
}else{
$this->error($rs->getError());
}
}
// 复制规则
    public function cop(){
    $rs = D("Collect");
$id = intval($_GET['id']);
$array = $rs->find($id);
unset($array["collect_id"]);
$array["collect_title"] = $array["collect_title"].'-复制';
$rs->data($array)->add();
$this->success('复制采集规则成功！');
    }
// 删除规则
    public function del(){
$rs = D("Collect");
$id = intval($_GET['id']);
$where['collect_id'] = $id;
$rs->where($where)->delete();
F('_collects/cid_'.$id.'_rule',NULL);
F('_collects/cid_'.$id.'_replace',NULL);
$this->success('删除ID为'.$id.'的采集规则成功！');
    }
// 批量删除规则
    public function delall(){
if(empty($_POST['ids'])){
$this->error('请选择需要删除的采集规则！');
}
$array = $_POST['ids'];
$rs = D("Collect");
foreach($array as $value){
    $rs->where('collect_id='.$value)->delete();
F('_collects/cid_'.$value.'_rule',NULL);
F('_collects/cid_'.$value.'_replace',NULL);
}
$this->success('批量删除采集规则成功！');
    }
// 采集导出
    public function export(){
dump('2.0正式版才推出。');
exit();
    $rs = M("Collect");
$list = $rs->order('collect_id desc')->select();
$this->assign('list_collect',$list);
$this->display('./Public/system/collect_export.html');
    }
// 执行采集导出
    public function exportsql(){
$ids = $_POST['ids'];
    if(!is_array($ids)){
$this->error("请选择要导出的规则！");
}
    $where['collect_id'] = array('in',$ids);
    $rs = M("Collect");
$list = $rs->where($where)->order('collect_id desc')->select();
F('_collects/ppvod_collect',$list);
        $this->success("恭喜您!您选择的采集规则已经完整导出！");
    }
// 采集导入
    public function import(){
dump('2.0正式版才推出。');
exit();
$list = F('_collects/ppvod_collect');
if(!is_array($list)){
$this->error("没有找到采集规则文件Runtime/Data/_collects/ppvod_collect.php");
}
$this->assign('list_collect',$list);
        $this->display('./Public/system/collect_export.html');
    }
// 执行采集导入
    public function importsql(){
    $ids = $_POST['ids'];
if(!is_array($ids)){
$this->error("请选择要导入的规则！");
}
$list = F('_collects/ppvod_collect');
$rs = D("Collect");
$replace = array('all'=>'','listname'=>'','vodname'=>'','actor'=>'','director'=>'','content'=>'','vodpic'=>'','continu'=>'','url'=>'');
foreach($list as $key=>$val){
    if(in_array($val['collect_id'],$ids)){
unset($val['collect_id']);
$cid = $rs->data($val)->add();
$abc = explode('|||',$val['collect_replace']);
$replace = array();
$replace['all'] = $abc[0];
$replace['listname'] = $abc[1];
$replace['vodname'] = $abc[2];
$replace['actor'] = $abc[3];
$replace['director'] = $abc[4];
$replace['content'] = $abc[5];
$replace['vodpic'] = $abc[6];
$replace['continu'] = $abc[7];
$replace['url'] = $abc[8];
//$this->f_replace($replace,$cid);
};
}
$this->assign("jumpUrl",'?s=Admin-Collect-Show');
$this->success("恭喜您，您选择的采集规则已经成功导入！");
    }
// 采集主干
    public function caiji(){
//判断是否批量采集并生成当前采集ID
$ids = $_REQUEST['ids'];
if(is_array($ids)){
$ids = '1,'.implode(',',$ids);
$id = $ids[0];
}else{
$ids = $_GET['ids'];
$id = $ids;
}
//生成采集列表与规则
$array = $this->caijicreateurl($id);
$pagetype = $array['rule']['collect_pagetype'];
//采集方式分支-开始采集 ids=多个ID id=当前id sid=start eid=end tid=test
if($pagetype<3){
//按列表页采集
$jumpurl = '?s=Admin-Collect-Caijilist-ids-'.$ids.'-id-'.$id.'-sid-0-eid-'.count($array['list']).'-tid-'.$_GET['tid'].'.html';
}else{
//按内容页采集
$jumpurl = '?s=Admin-Collect-Caijiid-ids-'.$ids.'-id-'.$id.'-sid-0-eid-'.count($array['list']).'-tid-'.$_GET['tid'].'.html';
}
redirect($jumpurl);
}
// 按列表页采集
public function caijilist(){
    $list = F('_collects/id_'.$_GET['id']);
$rule = F('_collects/id_'.$_GET['id'].'_rule');
if(!$list || !$rule){
$this->error("采集范围或采集规则不正确,请修改！");
}
//判断采集范围是否采集完成
if($_GET['sid'] < $_GET['eid']){
$listurl = trim($list[$_GET['sid']]);
$html = ff_file_get_contents($listurl);
if(!html){
dump('获取网页'.$url.'数据失败！');
exit();
}
//编码转换
if("utf-8" <> $rule['collect_encoding']){
$html = g2u($html);
}
//缩小列表范围
if(!empty($rule['collect_listurlstr'])){
$html = ff_preg_match($html,$rule['collect_listurlstr']);
}
//列表页采集图片
if(!empty($rule['collect_listpicstr'])){
$array_url_pic = ff_preg_match_all($html,$rule['collect_listpicstr']);
$array_url_pic = preg_replace($replace['1']['patterns'],$replace['1']['replaces'],trim(ff_preg_match($html,$rule['collect_content'])));
}
//内容页链接数组
$array_url_detail = ff_preg_match_all($html,$rule['collect_listlink']);
//是否倒序
if(1 == $rule['collect_order']){
$array_url_pic = ff_krsort_url($array_url_pic);
$array_url_detail = ff_krsort_url($array_url_detail);
}
//获取内容页源码并入库
foreach($array_url_detail as $key=>$val){
$list_picurl = preg_replace($replace['0']['patterns'],$replace['0']['replaces'],trim($array_url_pic[$key]));
$vod = $this->caijimdb(get_base_url($listurl,trim($val)),$rule,$list_picurl,$_GET['tid']);
dump($vod);
ob_flush();flush();
}
}else{
F('_collects/id_'.$_GET['id'],NULL);
F('_collects/id_'.$_GET['id'].'_rule',NULL);
$this->checknext($_GET['id']);
$this->assign("jumpUrl",'?s=Admin-Vod-Show-vod_cid-0');
$this->success('恭喜你!所有采集任务成功完成!<br><br>点此查看一些相似的影片是否需要入库！');
}
}

Answer 1

// 按影片ID采集
public function caijiid(){
    $list = F('_collects/id_'.$_GET['id']);
$rule = F('_collects/id_'.$_GET['id'].'_rule');
if(!$list || !$rule){
$this->error("采集范围或采集规则不正确,请修改！");
}
//判断是否为采集完测试
if($_GET['tid']){
$vod = $this->caijimdb(trim($list[$_GET['sid']]),$rule,'',$_GET['tid']);
$this->caijishow($vod);
exit();
}
//判断采集范围是否采集完成
if($_GET['sid'] < $_GET['eid']){
$sid = intval($_GET['sid']);
for($ii=0;$ii<10;$ii++){//一次采集5个
$vod = $this->caijimdb(trim($list[$sid]),$rule,'',$_GET['tid']);
$this->caijishow($vod);
$sid++;
if($sid > $_GET['eid']){
dump('采集完成');
exit();
}
}
$jumpurl = '?s=Admin-Collect-Caijiid-ids-'.$_GET['ids'].'-id-'.$_GET['id'].'-sid-'.($sid+1).'-eid-'.$_GET['eid'].'-tid-'.$_GET['tid'].'.html';
$this->caijijumpurl($jumpurl);
}
//判断采集节点是否采集完成
$this->caijiend($_GET['id']);
}
//处理采集内容页并入库
public function caijimdb($url,$rule,$picurl='',$tid=''){
//获取过滤规则
    $replace = F('_collects/id_'.$rule['collect_id'].'_replace');
$url = preg_replace($replace['0']['patterns'],$replace['0']['replaces'],$url);
$html = ff_file_get_contents($url);
if(!html){
$vod['vod_state'] = '获取网页'.$url.'数据失败!';
return $vod;
}
//编码转换
if("utf-8" <> $rule['collect_encoding']){
$html = g2u($html);
}
$vod['vod_cid'] = $rule['collect_cid'];
if( 0 == $vod['vod_cid']){
$vod['vod_cid'] = preg_replace($replace['2']['patterns'],$replace['2']['replaces'],trim(ff_preg_match($html,$rule['collect_listname'])));
$vod['vod_cid'] = getlistid($vod['vod_cid']);
}
$vod['vod_name'] = preg_replace($replace['3']['patterns'],$replace['3']['replaces'],trim(ff_preg_match($html,$rule['collect_name'])));
$vod['vod_title'] = preg_replace($replace['4']['patterns'],$replace['4']['replaces'],trim(ff_preg_match($html,$rule['collect_info'])));
$vod['vod_actor'] = preg_replace($replace['5']['patterns'],$replace['5']['replaces'],trim(ff_preg_match($html,$rule['collect_actor'])));
$vod['vod_director'] = preg_replace($replace['6']['patterns'],$replace['6']['replaces'],trim(ff_preg_match($html,$rule['collect_director'])));
$vod['vod_content'] = preg_replace($replace['7']['patterns'],$replace['7']['replaces'],trim(ff_preg_match($html,$rule['collect_content'])));
if(C('play_collect')){
$vod['vod_content'] = ff_rand_str($vod['vod_content']);
}
//是否列表页获取图片
if($picurl){
$vod['vod_pic'] = get_base_url($url,$picurl);
}else{
$vod['vod_pic'] = preg_replace($replace['8']['patterns'],$replace['8']['replaces'],trim(ff_preg_match($html,$rule['collect_pic'])));
$vod['vod_pic'] = get_base_url($url,$vod['vod_pic']);
}
$vod['vod_continu'] = preg_replace($replace['9']['patterns'],$replace['9']['replaces'],trim(ff_preg_match($html,$rule['collect_continu'])));
if(empty($vod['vod_continu'])){
$vod['vod_continu'] = 0;
}
$vod['vod_area'] = preg_replace($replace['10']['patterns'],$replace['10']['replaces'],trim(ff_preg_match($html,$rule['collect_area'])));
$vod['vod_language'] = preg_replace($replace['11']['patterns'],$replace['11']['replaces'],trim(ff_preg_match($html,$rule['collect_language'])));
$vod['vod_year'] = preg_replace($replace['12']['patterns'],$replace['12']['replaces'],trim(ff_preg_match($html,$rule['collect_year'])));
//默认值
$vod['vod_savepic'] = $rule['collect_savepic'];
$vod['vod_addtime'] = time();
$vod['vod_inputer'] = 'collect'.$rule['collect_id'];
$vod['vod_stars'] = 1;
$vod['vod_letter'] = ff_letter_first($vod['vod_name']);
$vod['vod_play'] = $rule['collect_player'];
$vod['vod_reurl'] = $url;
//是否缩小地址范围
if(!empty($rule['collect_urlstr'])){
$html = ff_preg_match($html,$rule['collect_urlstr']);
}
//是否采集分集名称
if(!empty($rule['collect_urlname'])){
$arrname = ff_preg_match_all($html,$rule['collect_urlname']);
}
$arrurl = ff_preg_match_all($html,$rule['collect_urllink']);
$playurl = '';
foreach($arrurl as $key=>$val){
if(is_array($arrname)){
$playname = $arrname[$key].'$';
}else{
$playname = '';
}
//播放页是否新窗口
if(!empty($rule['collect_url'])){
$val = preg_replace($replace['url']['patterns'],$replace['url']['replaces'],$val);
$html = ff_file_get_contents(get_base_url($url,$val));
if("utf-8"<>$rule['collect_encoding']){
$html = g2u($html);
}
$playurl = $playurl.chr(13).$playname.trim(ff_preg_match($html,$rule['collect_url']));
}else{
$playurl = $playurl.chr(13).$playname.trim($val);
}
}
$vod['vod_url'] = trim(preg_replace($replace['13']['patterns'],$replace['13']['replaces'],$playurl));
//处理是否写入数据
if($tid){
$vod['vod_state'] = '采集测试，数据不写入数据库!';
}else{
$vod['vod_state'] = $this->xml_insert($vod);
}
return $vod;
}
//定时采集
public function dingshi(){
if(in_array(date("w"),$_POST['collect_week'])){
if(in_array(date("H"),$_POST['collect_hour'])){
$gid=implode(',',$_REQUEST['collect_id']);
$gid='?s=Admin-Collect-Ing-collect_id-'.$_REQUEST['collect_id'][0].'-gid-1,'.$gid;
}
}
$this->assign('gid',$gid);
$this->display(APP_PATH.'/Public/admin/collect.html');
}
// 生成采集列表缓存/采集规则缓存/替换规则缓存
public function caijicreateurl($id){
$rs = M("Collect");
$array = $rs->where('collect_id='.$id)->find();
if(!$array){
exit();
}
// 组合替换规则($rule)
foreach($array as $key =>$val){
if(strpos($val,'[$ppvod]')>0){
$rule[$key] = ff_replace_rule($val);
}else{
$rule[$key] = $val;
}
}
//组合采集范围($listurl)
if($array['collect_pagetype']==2 || $array['collect_pagetype']==3){
for($i=0;$i <= abs(intval($array['collect_pagesid']-$array['collect_pageeid']));$i++){
$listurl[$i] = str_replace('[$ppvod]',$i+$array['collect_pagesid'],$array['collect_pagestr']);
}
}elseif($array['collect_pagetype']==1 || $array['collect_pagetype']==4){
$listurl = explode(chr(13),$array['collect_liststr']);
};
//是否倒序($listurl)
if(1 == $array['collect_order']){
$listurl = ff_krsort_url($listurl);
}
//生成采集范围与采集规则缓存
F('_collects/id_'.$id,$listurl);
F('_collects/id_'.$id.'_rule',$rule);
//生成替换规则缓存
$arr_replace = explode('|||',$array['collect_replace']);
foreach($arr_replace as $i=>$v1){
foreach(explode(chr(13),trim($v1)) as $j=>$v){
list($key,$val) = explode('$$$',trim($v));
$arr1[$j] = '/'.trim(stripslashes($key)).'/si';
$arr2[$j] = trim($val);
}
$arr[$i] = array('patterns'=>$arr1,'replaces'=>$arr2);
}
F('_collects/id_'.$id.'_replace',$arr);
//返回采集列表与规则数组
return array('list'=>$listurl,'rule'=>$rule);
}
//显示采集信息
public function caijishow($vod){
echo('<div style="font-size:12px;margin-bottom:5px;">');
echo('影片：'.$vod['vod_name'].'<br />');
echo('主演：'.$vod['vod_actor'].'<br />');
echo('图片：<a href="'.$vod['vod_pic'].'" target="_blank">'.$vod['vod_pic'].'</a><br />');
echo('来源：<a href="'.$vod['vod_reurl'].'" target="_blank">'.$vod['vod_reurl'].'</a><br />');
echo('状态：<font color=red>'.$vod['vod_state'].'</font><br />');
echo('</div>');
ob_flush();flush();
}
//采集节点跳转
public function caijijumpurl($jumpurl){
echo('<div style="font-size:12px;margin-bottom:5px;color:read">');
echo C('play_collect_time').'秒后将自动采集下一页!';
echo('</div>');
echo '<meta http-equiv="refresh" content='.C('play_collect_time').';url='.$jumpurl.'>';
ob_flush();flush();
exit();
}
//检测采集任务是否完成
public function caijiend($id){
$this->checknext($_GET['id']);
F('_collects/id_'.$_GET['id'],NULL);
F('_collects/id_'.$_GET['id'].'_rule',NULL);
F('_collects/id_'.$_GET['id'].'_replace',NULL);
$this->assign("jumpUrl",'?s=Admin-Vod-Show-vod_cid-0');
$this->success('恭喜你!所有采集任务成功完成!<br><br>点此查看一些相似的影片是否需要入库！');
}
//判断与处理下一个采集节点转向地址
public function checknext($string){
if(!empty($string)){
$gid=explode(',',$string);
$collect_nowid=$gid[0];
$gid[0]=$collect_nowid+1;
$collect_nexturl='?s=Admin-Collect-Ing-collect_id-'.$gid[$gid[0]];
$collect_count=count($gid)-1;
$gid=implode(',',$gid);
$collect_nexturl=$collect_nexturl.'-gid-'.$gid;//生成下一个采集节点地址
if($collect_nowid==$collect_count){
if(c('url_html')){
header("Location: ?s=Admin-Html-Showvod-did-1-gid-1");//生成当天静态
}else{
if(c('html_cache_on')){
header("Location: ?s=Admin-Cache-Vodday");//清空当天缓存
}
}
}else{
header("Location: ".$collect_nexturl."");
}
}
}
// 写入替换规则缓存
    public function f_replace($rearr,$collectid){
foreach($rearr as $i=>$v1){
foreach(explode(chr(13),trim($v1)) as $j=>$v){
list($key,$val)=explode('$$$',trim($v));
$arr1[$j]='/'.trim(stripslashes($key)).'/si';
$arr2[$j]=trim($val);
}
$arr[$i]=array('patterns'=>$arr1,'replaces'=>$arr2);
}
F('_collects/id_'.$collectid.'_replace',$arr);
return $arr;   
}
}
?>

Answer 2

类是通用的，而你这个要求是不通用的个案，所以不应该修改类代码，而是控制是否传入参数，或者是否实例化所以应该在类外使用if例如
$a = new  CollectAction();改为 if ($vod['vod_area'] = '中国 ') {$a = new  CollectAction(); ... }