我有一个从数据库中提取最大值的文本框。但它给出了错误的值。
你能帮忙弄清楚这里出了什么问题吗?
基本信息功能:
private function basicInformation() {
// initialize variables
$host = "localhost";
$db_name = "test";
$tbl_name = "ballpark_details";
$username = "root";
$password = "";
// connect to database
mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name")or die("cannot select DB"); # ORDER BY ballpark_details_id DESC
$query = mysql_query("SELECT MAX(ballpark_details_booking_ref) as max_booking_ref FROM `ballpark_details`");
//Getting the max ref_id
$values = mysql_fetch_assoc($query);
while ($query !=-1 && $row = mysql_fetch_assoc($query)) {
$max = $row['max_booking_ref'];
}
echo print_r($values, true);
$html = "";
$html .= '<fieldset id="basic-information" class="ui-widget">' . PHP_EOL;
$html .= '<legend>Basic Ballpark Information</legend>' . PHP_EOL;
$rowClass = "input-row";
//$html .= $this->wrapLabelTextbox($this->inputBookingRef($values['max_booking_ref)']), $rowClass);
$html .= $this->wrapLabelTextbox($this->inputBookingRef($max), $rowClass);
//$html .= $this->wrapLabelTextbox($this->inputBookingRef(), $rowClass);
$html .= $this->wrapLabelTextbox($this->inputBank(), $rowClass);
$html .= $this->wrapLabelTextbox($this->inputRegion(), $rowClass);
$html .= $this->wrapLabelTextbox($this->inputDescription(), $rowClass);
$html .= $this->wrapLabelTextbox($this->inputNotes(), $rowClass);
$html .= $this->wrapLabelTextbox($this->inputStartDate(), $rowClass);
$html .= $this->wrapLabelTextbox($this->inputRequestedDeliveryDate(), $rowClass); #$this->inputEndDate()
$html .= $this->wrapLabelTextbox($this->inputExpiryDate(), $rowClass);
$html .= $this->wrapLabelTextbox($this->inputURL(), $rowClass);
$html .= $this->wrapLabelTextbox($this->inputCAR(), $rowClass);
(strcmp($_GET["page"], "createballpark"))?
$html .= $this->wrapLabelTextbox($this->inputProjectStatusEdit(), $rowClass) :
$html .= $this->wrapLabelTextbox($this->inputProjectStatusCreate(), $rowClass);
$html .= '</fieldset>';
return $html;
}
和我的 inputBookingRef 函数:
private function inputBookingRef($values){
//$values = $this->bookingRef;
$html = "";
$values++;
$html .= '<label for="ref">Booking Ref: </label>';
$html .= HTML::inputText("ref", 20, $values) . PHP_EOL;
return $html;
}
在这一行:
echo print_r($values, true);
它显示最后一个最大值。但在我的文本框中,它只是给出数值 1。我不知道我的编码有什么问题。非常感谢任何帮助,所以我可以继续我的程序。谢谢。