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sql多关键字搜索 无 if(count($newstr)==1){//如果数组的元素个数为1个,则按单个条件进行查询 $sql = "select * from tb_info where title like '%".$newstr[0]."%' or content like '%".$newstr[0]."%'order by id desc ";}else{//合并查询结果集for($i=0;$
sql 多关键字搜索if(count($newstr)==1){ //如果数组的元素个数为1个,则按单个条件进行查询 $sql = "select * from tb_info where title like '%".$newstr[0]."%' or content like '%".$newstr[0]."%'order by id desc "; }else{ //合并查询结果集 for($i=0;$i<count($newstr);$i++){ $sql0.=" title like '%".trim($newstr[$i])."%'"." or"; } for($j=0;$j<count($newstr);$j++){ $sql1.=" content like '%".trim($newstr[$j])."%'"." or"; } $sql1=substr($sql1,0,-3); //去掉最后一个“or” $sql="select * from tb_info where".$sql0.$sql1." order by id desc"; }