大家好，当我尝试使用Mysql学习PHP OOP时，我遇到了这个问题。当我启动网页时，它显示的错误信息是:解析错误:语法错误，意外T_VARIABLE在/var/www/html/xxx/class_db .php第52行
希望任何人可以帮助和改善我的编码习惯，谢谢!
class_DB.php
<?php
class ConnDB{
private $host;
private $user;
private $pass;
private $db;
private $link;
private $query;
private $dbConn = 0;
public function __construct($host, $user, $pass, $db="", $conn = 1){
$this->host = $host;
$this->user = $user;
$this->pass = $pass;
$this->db_name = $db;
if (!empty($db)){
$this -> name = $db;
}
if ($conn == 1){
$this->connect();
}
}
public function __destruct(){
mysql_close($this->link);
}
public function connect(){
if($this -> link = mysql_connect($this->host, $this->user, $this->pass)){
if(!empty($this->db_name)){
if (!mysql_select_db($this->db_name)){
$this -> exception("Error: Could not connect to the database!");
}
}else{
$this -> exception("Could not create database connection!");
}
}
}
public function query($sql){
if($this->query = mysql_query($sql)){
return $this->query;
}else{
$this->exception("Could not query the database!");
return false;
}
}
public function insert_SQL($varNum ){
$this->query("INSERT INTO testing_Rand (number1, number2, number3, number4, number5, number6, number7, number8, number9, number10) VALUES ("
$newRand.=implode(',', $varNum)
$newRand.=")");
}
public function close() {
mysql_close($this->link);
}
public function fetch_array($queryID){
if(empty($queryID)){
$this->exception("Error: Could not fetch array");
return false;
}else{
$rows = mysql_fetch_array($queryID);
}
return $rows;
//return mysql_fetch_array($this->query, MYSQL_ASSOC);
}
public function fetch_array_assoc($queryID){
if(empty($queryID)){
$this->exception("Error: Could not fetch array assoc");
return false;
}else{
$rows = mysql_fetch_array($queryID, MYSQL_ASSOC);
}
return $rows;
}
public function num_rows($queryID){
if(empty($queryID)){
$this->exception("Error: Could not get number of rows");
return false;
}else{
return mysql_num_rows($queryID);
}
//return mysql_num_rows($this->query);
}
public function get_insert_id(){
return mysql_insert_id($this->_dbConn);
}
//$conn=mysql_connect($host,$user,$pass,$db);
}
?>
Rand.php
<?php session_start(); ?>
<?php
$_SESSION['selectNum'] = $_POST;
$selectNum = $_POST["selectNum"];
?>
<html>
<body>
<?php
require_once("class_DB.php");
$conn = new connDB('localhost', 'chccheung', 'chccheung', 'chccheung');
if (!$conn){
die('Not connected : ' . mysql_error());
}
$varNum = array();
$varNum = range(0, 9);
?>
<form action="<?=htmlentities($_SERVER['PHP_SELF']); ?>" method="post">
<p><b><center>Choose an amount of random numbers in the selection box</center></b></p>
<p>
<center>
<select name="selectNum" id="selectNum">
<?php
/*foreach($varNum as $key => $value):
echo '<option value="'.$key.'">'.$value.'</option>';
endforeach;*/
?>
<option <?php if (isset($_SESSION['selectNum']) && $selectNum =="0") echo "selected";?> value="0">1</option>
<option <?php if (isset($_SESSION['selectNum']) && $selectNum =="1") echo "selected";?> value="1">2</option>
<option <?php if (isset($_SESSION['selectNum']) && $selectNum =="2") echo "selected";?> value="2">3</option>
<option <?php if (isset($_SESSION['selectNum']) && $selectNum =="3") echo "selected";?> value="3">4</option>
<option <?php if (isset($_SESSION['selectNum']) && $selectNum =="4") echo "selected";?> value="4">5</option>
<option <?php if (isset($_SESSION['selectNum']) && $selectNum =="5") echo "selected";?> value="5">6</option>
<option <?php if (isset($_SESSION['selectNum']) && $selectNum =="6") echo "selected";?> value="6">7</option>
<option <?php if (isset($_SESSION['selectNum']) && $selectNum =="7") echo "selected";?> value="7">8</option>
<option <?php if (isset($_SESSION['selectNum']) && $selectNum =="8") echo "selected";?> value="8">9</option>
<option <?php if (isset($_SESSION['selectNum']) && $selectNum =="9") echo "selected";?> value="9">10</option>
</select>
</center>
</p>
<center><input type="hidden" name="selected_Num" id="selected_Num" value="" /></center>
<center><input type="Submit" value="submit"></center>
</form>
<?php
//Check the amount to generate random numbers
if(isset($_POST['selectNum']) ){
//if(isset($selectNum) ){
$arrayRand=intval($_POST['selectNum']);
for($i=0;$i<=$arrayRand;$i++){
$varNum[$i]=rand(1,10000);
}
for($i=9;$i>$arrayRand;$i--){
$varNum[$i] = 0;
}
//Insert values into Database after implementing the function of generate random number
if(count($varNum)){
$rand_id = mysql_insert_id ();
$connInsert = new connDB();
$connInsert->insert_SQL($newRand);
mysql_query($newRand);
}
/*$content = $content. '
<tr>
<th>Random Numbers</th>
<th>'.$row[0].'</th>
<th>'.$row[1].'</th>
<th>'.$row[2].'</th>
<th>'.$row[3].'</th>
<th>'.$row[4].'</th>
<th>'.$row[5].'</th>
<th>'.$row[6].'</th>
<th>'.$row[7].'</th>
<th>'.$row[8].'</th>
<th>'.$row[9].'</th>
</tr>'."'n";
$content .= "</table>'n";
return $content;*/
//Show the results by submitting the values of selection box
echo "<center><h3><b>The random Numbers:</b></h3></center>";
echo "<table border='1' align='center'>
<th>Number 1</th>
<th>Number 2</th>
<th>Number 3</th>
<th>Number 4</th>
<th>Number 5</th>
<th>Number 6</th>
<th>Number 7</th>
<th>Number 8</th>
<th>Number 9</th>
<th>Number 10</th>";
echo "<tr>
";
foreach($varNum as $row){
$_SESSION['selectNum']=$row;
if($_SESSION['selectNum']!=null){
echo "<td style='text-align:center'>".$row."</td>
";
}
}
echo "</tr>
";
echo "</table>";
}
//Show the results by selecting the Database
$sqlDBrand = "SELECT id, number1, number2, number3, number4, number5, number6, number7, number8, number9, number10 FROM chccheung.testing_Rand";
$showRand = $conn->query($sqlDBrand);
echo "<center><h3><b>Select the random numbers from Database:</h3></center>";
echo "<table border='1' align='center'>
<tr>
<th>ID number</th>
<th>Number 1</th>
<th>Number 2</th>
<th>Number 3</th>
<th>Number 4</th>
<th>Number 5</th>
<th>Number 6</th>
<th>Number 7</th>
<th>Number 8</th>
<th>Number 9</th>
<th>Number 10</th>";
if($conn->num_rows($showRand) > 0){
while($rows = $conn->fetch_array_assoc($showRand)){
echo "<tr>
";
echo "<td style='text-align:center'>".$rows['id']."</td>
";
echo "<td style='text-align:center'>".$rows['number1']."</td>
";
echo "<td style='text-align:center'>".$rows['number2']."</td>
";
echo "<td style='text-align:center'>".$rows['number3']."</td>
";
echo "<td style='text-align:center'>".$rows['number4']."</td>
";
echo "<td style='text-align:center'>".$rows['number5']."</td>
";
echo "<td style='text-align:center'>".$rows['number6']."</td>
";
echo "<td style='text-align:center'>".$rows['number7']."</td>
";
echo "<td style='text-align:center'>".$rows['number8']."</td>
";
echo "<td style='text-align:center'>".$rows['number9']."</td>
";
echo "<td style='text-align:center'>".$rows['number10']."</td>
";
echo"</tr>
";
}
}
echo "</table>";
unset($_SESSION['selectNum']);
?>
</body>
这行代码不关闭:
$this->query("INSERT INTO testing_Rand (number1, // etc
，您在这行之后缺少一个;:
$newRand.=implode(',', $varNum)
如果我明白了，你的意思是这样写:
public function insert_SQL($varNum )
{
$this->query("INSERT INTO testing_Rand
(number1, number2, number3, number4, number5, number6, number7, number8, number9, number10)
VALUES (".implode(',', $varNum).")");
}