OO-PHP-MySQL连接

我是PHP语言的新手，事实上，这周我开始学习它

尝试将某些文件连接到SQL数据库时，我收到以下错误消息：

分析错误：语法错误，意外的T_变量，第56行的/home/cpapalardo/wwwroot/Calendario/Calendar.php中需要T_函数

第56行是：

$result = mysql_query("SELECT event_id, event_title FROM event");

我不知道我做错了什么。有人能帮我拿这个吗

提前谢谢

代码如下：

<?php include("DB_Connect.php");

class Calendar1 extends DB_Connect{

private $data;
private $month;
private $year;
private $daysMonth;
private $startDay;

public function __construct($dbo=NULL, $data=NULL){
    parent::__construct();

    if(isset($data)){
        $this->data = $data;
    }else{
        $this->data = date('Y-m-d H:i:s');              
    }

    //convert to timestamp and determines month and year of the calendar
    $ts = strtotime($this->data);
    $this->month= date("m", $ts);
    $this->year= date('Y', $ts);            

    //how many days the month has
    $this->daysMonth= date('t', strtotime($year.'-'.($month-1).'-01'));

    //what day of the week the month starts in
    $ts = mktime(0, 0, 0, $this->month, 1, $this->year);
    $this->startDay= date('w', $ts);
}

private function loadEventData($id=NULL){
    $sql = "SELECT 
                'event_id', 'event_title', 'event_desc', 'event_start', 'event_end' 
            FROM 'events'";

    if(!empty($id)){
        $sql .="WHERE 'event_id'=:id LIMIT 1";//returns one result
    }else{
        $start_ts = mktime(0, 0, 0, $this->month, 1, $this->year);
        $end_ts = mktime(23, 59, 59, $this->month+ 1, 0, $this->year);
        $start_date = date('Y-m-d H:i:s', $start_ts);
        $end_date = date('Y-m-d H:i:s', $end_ts);

        $sql = "WHERE 'event_start'
                BETWEEN '$start_date'
                AND '$end_date'
                ORDER BY 'event_start'";
    }

}
}

//execute the SQL query and return records
$result = mysql_query("SELECT event_id, event_title FROM event");
//fetch tha data from the database
while ($row = mysql_fetch_array($result)) {
echo "ID:".$row['event_id']." Name:".$row['event_title'];

}

?>



<?php

class DB_Connect{
    protected $cn;

    public function __construct(){
        $cn = mysql_connect("testDatabase", "admin", "pass123");
        mysql_select_db("admin", $cn);
    }
}
?>

---

可以使用[]方括号而不是{}访问数组元素。您需要更改以下行：

echo "ID:".$row{'event_id'}." Name:".$row{'event_title'};

具体如下：

echo "ID:".$row['event_id']." Name:".$row['event_title'];

编辑 您正在为列和表使用单引号。要么删除它们，要么使用反勾号

$sql = "SELECT 
        'event_id', 'event_title', 'event_desc', 'event_start', 'event_end' 
    FROM 'events'";
    

应该是：

$sql = "SELECT 
            event_id, event_title, event_desc, event_start, event_end 
        FROM events";

此行$sql.=其中'event_id'=：id LIMIT 1//使用：id返回一个结果，该绑定方法未在代码中实现

您可能必须将其更改为$sql.=其中event_id=$id LIMIT 1//返回一个结果

由于它是一个列，因此没有在event_id周围加引号

新重写：

改为：

echo "ID:".$row['event_id']." Name:".$row['event_title'];

“event_start”的行顺序不应用单引号括起来

使用

或

重写：

<?php
include("DB_Connect.php");

class Calendar extends DB_Connect{

    private $data;
    private $month;
    private $year;
    private $daysMonth;
    private $startDay;

    public function __construct($dbo=NULL, $data=NULL){
        parent::__construct();

        if(isset($data)){
            $this->data = $data;
        }else{
            $this->data = date('Y-m-d H:i:s');              
        }

        //convert to timestamp and determines month and year of the calendar
        $ts = strtotime($this->data);
        $this->month= date("m", $ts);
        $this->year= date('Y', $ts);            

        //how many days the month has
        $this->daysMonth= date('t', strtotime($year.'-'.($month-1).'-01'));

        //what day of the week the month starts in
        $ts = mktime(0, 0, 0, $this->month, 1, $this->year);
        $this->startDay= date('w', $ts);
    }

    private function loadEventData($id=NULL){
        $sql = "SELECT 
                    'event_id', 'event_title', 'event_desc', 'event_start', 'event_end' 
                FROM 'events'";

        if(!empty($id)){
            $sql .="WHERE 'event_id'=:id LIMIT 1";//returns one result
        }else{
            $start_ts = mktime(0, 0, 0, $this->month, 1, $this->year);
            $end_ts = mktime(23, 59, 59, $this->month+ 1, 0, $this->year);
            $start_date = date('Y-m-d H:i:s', $start_ts);
            $end_date = date('Y-m-d H:i:s', $end_ts);

            $sql = "WHERE 'event_start'
                    BETWEEN '$start_date'
                    AND '$end_date'
                    ORDER BY `event_start`";
        }

    }
    
}

    //execute the SQL query and return records
    $result = mysql_query("SELECT event_id, event_title FROM event");
    //fetch tha data from the database
    while ($row = mysql_fetch_array($result)) {
    
    echo "ID:".$row['event_id']." Name:".$row['event_title'];

    }

    $evento = mysql_query("select * from event");

    while ($row = mysql_fetch_array ($evento)){
        echo $row['event_id'] . "<br>" . $row['event_title'] . "<br>";
    }

?>

---

旁注：第一段代码中的大括号似乎不匹配，在我的IDE中也不匹配。尝试删除上次while循环后的最后一个大括号，然后将其移动到//执行SQL查询并返回记录请查看MySQLi而不是PHP的MySQL函数。在/*$evento=MySQL\u queryselect*from event中还有一个开始注释标记/*；但是没有关闭*/这样也会抛出/导致错误。我很难给出一个答案，因为我不知道你是否希望它被注释掉。你过早地关闭了你的方法，就在给出错误的那一行之前。你也不会关门。你应该把实际的密码发出来。嘿，谢谢你的回答。我对代码做了一些修改。我用的是记事本++，所以我对大括号有点困惑。很抱歉给您带来不便。不止这些，没有查询会执行。代码写为SELECT“event_id”。。。等等，你是对的@AbhikChakraborty，我在试图快速回复时错过了这个，Fred-ii-，谢谢你的帮助！当我写这个问题时，我很匆忙，忘记了修复代码的某些部分。我仍然收到相同的错误消息，但是现在我可以看到MySQL的选择结果了！我仍在查找如何修复此错误消息。再次感谢！：@不客气。我正要将“事件开始”的顺序改为“事件开始”的顺序，不应该用单引号括起来。看看这个改变是否能修复你的代码。我用同样的代码编辑了我的答案。我发现了更多的错误@如果您发布的代码是您的生产代码，请告诉我。我将发布一个快速编辑。请参阅我的编辑，并在New rewrite@CPpaI下发现其他内容。您有一个查询，其中包含表的事件和单数形式的事件；它是哪一个，或者您在两个不同的表中同时使用这两个@CPpa

echo "ID:".$row['event_id']." Name:".$row['event_title'];

ORDER BY event_start

ORDER BY `event_start`

<?php
include("DB_Connect.php");

class Calendar extends DB_Connect{

    private $data;
    private $month;
    private $year;
    private $daysMonth;
    private $startDay;

    public function __construct($dbo=NULL, $data=NULL){
        parent::__construct();

        if(isset($data)){
            $this->data = $data;
        }else{
            $this->data = date('Y-m-d H:i:s');              
        }

        //convert to timestamp and determines month and year of the calendar
        $ts = strtotime($this->data);
        $this->month= date("m", $ts);
        $this->year= date('Y', $ts);            

        //how many days the month has
        $this->daysMonth= date('t', strtotime($year.'-'.($month-1).'-01'));

        //what day of the week the month starts in
        $ts = mktime(0, 0, 0, $this->month, 1, $this->year);
        $this->startDay= date('w', $ts);
    }

    private function loadEventData($id=NULL){
        $sql = "SELECT 
                    'event_id', 'event_title', 'event_desc', 'event_start', 'event_end' 
                FROM 'events'";

        if(!empty($id)){
            $sql .="WHERE 'event_id'=:id LIMIT 1";//returns one result
        }else{
            $start_ts = mktime(0, 0, 0, $this->month, 1, $this->year);
            $end_ts = mktime(23, 59, 59, $this->month+ 1, 0, $this->year);
            $start_date = date('Y-m-d H:i:s', $start_ts);
            $end_date = date('Y-m-d H:i:s', $end_ts);

            $sql = "WHERE 'event_start'
                    BETWEEN '$start_date'
                    AND '$end_date'
                    ORDER BY `event_start`";
        }

    }
    
}

    //execute the SQL query and return records
    $result = mysql_query("SELECT event_id, event_title FROM event");
    //fetch tha data from the database
    while ($row = mysql_fetch_array($result)) {
    
    echo "ID:".$row['event_id']." Name:".$row['event_title'];

    }

    $evento = mysql_query("select * from event");

    while ($row = mysql_fetch_array ($evento)){
        echo $row['event_id'] . "<br>" . $row['event_title'] . "<br>";
    }

?>