时间：2021-07-01 10:21:17 帮助过：7人阅读
下面写的这个SQL语句组合类，主要是用于学习的，如果有同学想拿去用，请再完善一下。
123456789101112131415161718192021222324252627282930313233343536373839 | /* * SQL语句组合实例类，始发文章web开发笔记 * www.chhua.com * 学习用，非专业类 * */class sql{ private $sql=array("from"=>"", "where"=>"", "order"=>"", "limit"=>""); public function from($tableName) { $this->sql["from"]="FROM ".$tableName; return $this; } public function where($_where='1=1') { $this->sql["where"]="WHERE ".$_where; return $this; } public function order($_order='id DESC') { $this->sql["order"]="ORDER BY ".$_order; return $this; } public function limit($_limit='30') { $this->sql["limit"]="LIMIT 0,".$_limit; return $this; } public function select($_select='*') { return "SELECT ".$_select." ".(implode(" ",$this->sql)); }} $sql =new sql(); echo $sql->from("testTable")->where("id=1")->order("id DESC")->limit(10)->select();//输出 SELECT * FROM testTable WHERE id=1 ORDER BY id DESC LIMIT 0,10 |