PHPforeach()跳出本次或当前循环与终止循环方法
PHP中用foreach()循环中，想要在循环的时候，当满足某个条件时，想
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$arr=array('a','b','c','d','e');
$html='';
foreach($arras$key=>$value){
if($value=='b'){
$html.=$value;
continue;//当$value为b时，跳出本次循环
}
if($value=='c'){
$html.=$value;
break;//当$value为c时，终止循环
}
$html.=$value;
}
echo$html;//输出：ab
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下面是自己的实际例子
//父级栏目
publicfunctionparentList($id)
{
//查询该栏目下所有子类数据
$categoryData=db("category")->where("id=".$id)->find();
//dump($categoryData);
if(!$categoryData){
$this->error("参数错误");
}else{
$this->assign('categoryData',$categoryData);
//查询该栏目下所有子类数据即pid=$id
$category=db("category")->select();
$praProductData=$this->toLayer($category);
//dump($praProductData);
foreach($praProductDataas$k=>$v){
//如果有子类目
if(!empty($v['zilei'])&&$v['id']==$id){
$praductData=Db::table("ven_article")
->alias('a')
->join('ven_categoryw','a.cid=w.id')
->where("a.status=1andw.pid='".$id."'")
->field("a.id,a.title,a.faceimg,a.time_report,a.resume,a.cid,w.name")
->order('a.idDESC')
->paginate(6);
//dump($praductData);
break;
}else{
//没有子类
if($v['id']==$id){
$praductData=Db::table("ven_article")
->alias('a')
->join('ven_categoryw','a.cid=w.id')
->where("a.status=1anda.cid=".$id)
->field("a.id,a.title,a.faceimg,a.time_report,a.resume,a.cid,w.name")
->order('a.idDESC')
->paginate(6);
//dump($praductData);
break;
}
}
}
$data=$praductData->toArray()['data'];//或者$data=$praductDatas->all();
if($data){
$this->assign('a',1);
}
$page=$praductData->render();
$this->assign('Page',$page);
$this->assign("newPraProduct",$praductData);
}
returnview("ParentList");
}
打印$praProductData结果如下：
array(5){
[0]=>array(9){
["id"]=>int(1)
["pid"]=>int(0)
["path"]=>string(3)"0-1"
["name"]=>string(9)"风幕柜"
["status"]=>int(1)
["seo_title"]=>string(0)""
["seo_keys"]=>string(0)""
["seo_desc"]=>string(0)""
["zilei"]=>array(2){
[0]=>array(9){
["id"]=>int(2)
["pid"]=>int(1)
["path"]=>string(5)"0-1-2"
["name"]=>string(21)"饮料超市风幕柜"
["status"]=>int(1)
["seo_title"]=>string(0)""
["seo_keys"]=>string(21)"饮料超市风幕柜"
["seo_desc"]=>string(21)"饮料超市风幕柜"
["zilei"]=>array(0){
}
}
[1]=>array(9){
["id"]=>int(37)
["pid"]=>int(1)
["path"]=>string(6)"0-1-37"
["name"]=>string(15)"超市风幕柜"
["status"]=>int(1)
["seo_title"]=>string(0)""
["seo_keys"]=>string(15)"超市风幕柜"
["seo_desc"]=>string(15)"超市风幕柜"
["zilei"]=>array(0){
}
}
}
}
[1]=>array(9){
["id"]=>int(33)
["pid"]=>int(0)
["path"]=>string(4)"0-33"
["name"]=>string(15)"环岛风幕柜"
["status"]=>int(1)
["seo_title"]=>string(15)"环岛风幕柜"
["seo_keys"]=>string(15)"环岛风幕柜"
["seo_desc"]=>string(15)"环岛风幕柜"
["zilei"]=>array(0){
}
}
[2]=>array(9){
["id"]=>int(46)
["pid"]=>int(0)
["path"]=>string(4)"0-46"
["name"]=>string(9)"点菜柜"
["status"]=>int(1)
["seo_title"]=>string(9)"点菜柜"
["seo_keys"]=>string(9)"点菜柜"
["seo_desc"]=>string(9)"点菜柜"
["zilei"]=>array(0){
}
}
[3]=>array(9){
["id"]=>int(48)
["pid"]=>int(0)
["path"]=>string(4)"0-48"
["name"]=>string(9)"鲜花柜"
["status"]=>int(1)
["seo_title"]=>string(9)"鲜花柜"
["seo_keys"]=>string(9)"鲜花柜"
["seo_desc"]=>string(9)"鲜花柜"
["zilei"]=>array(0){
}
}
[4]=>array(9){
["id"]=>int(53)
["pid"]=>int(0)
["path"]=>string(4)"0-53"
["name"]=>string(9)"药品柜"
["status"]=>int(1)
["seo_title"]=>string(0)""
["seo_keys"]=>string(0)""
["seo_desc"]=>string(0)""
["zilei"]=>array(2){
[0]=>array(9){
["id"]=>int(54)
["pid"]=>int(53)
["path"]=>string(7)"0-53-54"
["name"]=>string(15)"药品阴凉柜"
["status"]=>int(1)
["seo_title"]=>string(0)""
["seo_keys"]=>string(0)""
["seo_desc"]=>string(0)""
["zilei"]=>array(0){
}
}
[1]=>array(9){
["id"]=>int(55)
["pid"]=>int(53)
["path"]=>string(7)"0-53-55"
["name"]=>string(15)"药品冷藏柜"
["status"]=>int(1)
["seo_title"]=>string(0)""
["seo_keys"]=>string(0)""
["seo_desc"]=>string(0)""
["zilei"]=>array(0){
}
}
}
}
}
要跳出本次循环继续执行下次循环，或者满足某个条件的时候，终止foreach()循环，分别会用到：continue与break。
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