Php 调用未定义的方法;如何修复?
我在PHP中遇到以下致命错误: 致命错误:在第37行的C:\wamp\www\12.01.2015 Class 01\Coffee Website\Controller\CoffeeController.php中调用未定义的方法CoffeeModel::GetCoffeeByType() 上述错误的代码如下所示:Php 调用未定义的方法;如何修复?,php,Php,我在PHP中遇到以下致命错误: 致命错误:在第37行的C:\wamp\www\12.01.2015 Class 01\Coffee Website\Controller\CoffeeController.php中调用未定义的方法CoffeeModel::GetCoffeeByType() 上述错误的代码如下所示: function CreateCoffeeTables($types) { $coffeeModel = new CoffeeModel(); $coffeeArra
function CreateCoffeeTables($types)
{
$coffeeModel = new CoffeeModel();
$coffeeArray = $coffeeModel->GetCoffeeByType($types);
$result = "";
// Generate a coffeeTable for each coffeeEntity in array
foreach ($coffeeArray as $key => $coffee) {
$result = $result .
"<table class = 'coffeeTable'>
<tr>
<th rowspan='6' width= '150px' ><img runat = 'server' src = '$coffee->image'/></th>
<th width = '75px' >Name: </th>
<td>$coffee->name</td>
</tr>
<tr>
<th>Type: </th>
<td>$coffee->type</td>
</tr>
<tr>
<th>Price: </th>
<td>$coffee->price</td>
</tr>
<tr>
<th>Roast: </th>
<td>$coffee->roast</td>
</tr>
<tr>
<th>Origin: </th>
<td>$coffee->country</td>
</tr>
<tr>
<td colspan='2' >$coffee->review</td>
</tr>
</table>";
}
return $result;
}
函数CreateCoffeeTables($types)
{
$coffeeModel=新的coffeeModel();
$coffeeArray=$coffeeModel->GetCoffeeByType($types);
$result=“”;
//为数组中的每个coffeeEntity生成一个coffeeTable
foreach($coffeeArray作为$key=>$coffee){
$result=$result。
"
图片'/>
姓名:
$coffee->name
类型:
$coffee->type
价格:
$咖啡->价格
烤:
$咖啡->烤
来源:
$coffee->country
$coffee->review
";
}
返回$result;
}
在这段代码中,CoffeeModel类是存在的
<?php
require ("Entities/CoffeeEntity.php");
// contains database related code for the coffee type
class CoffeeModel
{
// Get all coffee types from the database and return them in an array
function GetCoffeeTypes()
{
require 'Credentials.php';
//Open connection and Select database
mysql_connect($host, $user, $password) or die (mysql_error());
mysql_select_db($database);
$result = mysql_query("SELECT DISTINCT type FROM coffee") or die(mysql_error());
$types = array();
// Get data from databse
while($row = mysql_fetch_array($result))
{
array_push($types, $row[0]);
}
// Close connection and return
mysql_close();
return $types;
}
}
// GET coffeeEntity objects from the database and return them in an array.
function GetCoffeeByType($type)
{
require 'Credentials.php';
// Open connection and select database
mysql_connect($host, $user, $password) or die (mysql_error());
mysql_select_db($database);
$query = "SELECT * FROM coffee WHERE LIKE '$type'";
$result = mysql_query($query) or die (mysql_error());
$coffeeArray = array();
//GET Data from Database
while ($row = mysql_fetch_array($result))
{
$name = $row[1];
$type = $row[2];
$price = $row[3];
$roast = $row[4];
$country = $row[5];
$image = $row[6];
$review = $row[7];
// Create Coffee objects and store them in an array
$coffee = new CoffeeEntity (-1, $name, $type, $price, $roast, $country, $image, $review);
array_push($coffeeArray, $coffee);
}
// CLose connection and return result
mysql_close();
return $coffeeArray;
}
在GetCoffeeTypes()
方法之后,您似乎过早地关闭了您的类:
return $types;
}
}
^ here
// GET coffeeEntity objects from the database and return them in an array.
您需要将右大括号移动到文件末尾,因为现在您正在定义一个全局函数而不是类方法。好的,只关注发布的问题,您的问题是在第一个方法之后关闭类:
}
} <---- this closing bracket is terminating the class
// GET coffeeEntity objects from the database and return them in an array.
function GetCoffeeByType($type)
{
}
}从错误消息中您不清楚什么?是的,在CoffeeModel
类中创建一个GetCoffeeByType()
方法。它告诉您该方法不存在。你能带我们去看咖啡模型课吗?另外,$result=$result。“xxx”;这是多余的。只需做$result.=“xxx”;我不能理解这个错误,在我看来一切都是正确的。我认为类或某物方法定义类型错误发生在这里是的,这是咖啡模型类移动括号后,这个错误发生了,您的SQL语法有错误;查看与MySQL服务器版本对应的手册,了解第1行“LIKE 4”附近使用的正确语法是什么,因为您的查询中缺少一些详细信息:“SELECT*FROM coffee WHERE`column`LIKE'$type'”
-哪一列应该像$type?您应该切换到PDO或mysqli并使用准备好的语句,但现在您的问题只是查询语法错误。
}
} <---- this closing bracket is terminating the class
// GET coffeeEntity objects from the database and return them in an array.
function GetCoffeeByType($type)
{