137 lines
2.6 KiB
PHP
137 lines
2.6 KiB
PHP
<?php
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class dbh
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{
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private $db; //传入PDO对象.
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private $product = 0; //产品环境
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function __construct($db)
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{
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$this->db = $db;
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}
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function insert($table,$data,$return=false)
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{
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$fields = array();
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$datas = array();
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foreach($data as $k=>$v)
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{
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$fields[] = '"'.$k.'"';
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if(is_int($v) || is_float($v) || is_bool($v))
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{
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$datas[] = $v;
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}else{
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if(preg_match("/\'/",$v))
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{
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$v = preg_replace("/\'/","''",$v);
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}
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$datas[] = "'".$v."'";
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}
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}
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$fields = join(",",$fields);
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$datas = join(",",$datas);
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if($return == false){
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$sql = "INSERT INTO \"".$table."\" ($fields) VALUES ($datas)";
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try{
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return $this->db->exec($sql);
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}catch (Exception $e) {
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if($this->product)
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{
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return false;
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}else{
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echo 'Caught exception: '. $e->getMessage(). "\n";
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}
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}
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}else{
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$sql = "INSERT INTO \"".$table."\" ($fields) VALUES ($datas) RETURNING id";
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try{
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$sth = $this->db->prepare($sql);
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if($sth->execute())
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{
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$temp = $sth->fetch(PDO::FETCH_ASSOC);
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return $temp['id'];
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}else{
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return false;
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}
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}catch (Exception $e) {
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if($this->product)
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{
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return false;
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}else{
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echo 'Caught exception: '. $e->getMessage(). "\n";
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}
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}
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}
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}//insert
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function update($table,$data,$condition="",$return=false)
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{
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$ups = array();
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foreach($data as $k=>$v)
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{
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if(is_int($v) || is_float($v) || is_bool($v))
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{
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$ups[] = '"'.$k.'"='.$v;
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}else{
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if(preg_match("/\'/",$v))
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{
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$v = preg_replace("/\'/","''",$v);
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}
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if(preg_match("/\"/",$v))
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{
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$v = preg_replace("/\"/","''",$v);
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}
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$ups[] = '"'.$k.'"=\''.$v."'";
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}
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}
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$fields = join(",",$ups);
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if(!empty($condition))
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{
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$wheresql = " WHERE ".$condition;
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}else{
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$wheresql = "";
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}
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if($return == false){
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try{
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$sql = "UPDATE \"".$table."\" SET $fields $wheresql";
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if($this->db->exec($sql))
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{
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return true;
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}else{
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return false;
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}
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}catch (Exception $e) {
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if($this->product)
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{
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return false;
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}else{
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echo 'Caught exception: '. $e->getMessage(). "\n";
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}
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}
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}else{
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try{
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$sql = "UPDATE \"".$table."\" SET $fields $wheresql";
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return $this->db->exec($sql);
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}catch (Exception $e) {
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if($this->product)
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{
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return false;
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}else{
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echo "<pre>";
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echo $sql."\r\n";
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echo 'Caught exception: '. $e->getMessage(). "\r\n";
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echo "</pre>";
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}
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}
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}
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}//update
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} |