在php中从类调用函数
我在这门课的一些函数中有一个类。所有函数都有变量。代码写在下面在php中从类调用函数,php,function,Php,Function,我在这门课的一些函数中有一个类。所有函数都有变量。代码写在下面 <?php class myclass{ public function getresults{ $url = 'http://www.slideshare.net/api/2/search_slideshows?q=google'; echo $url; $ch=curl_init(); curl_setopt($ch, CURLOPT_URL, $ur
<?php
class myclass{
public function getresults{
$url = 'http://www.slideshare.net/api/2/search_slideshows?q=google';
echo $url;
$ch=curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_USERAGENT, 'Your application name');
$query = curl_exec($ch);
$errorCode = curl_errno($ch);
curl_close($ch);
$array = (array) simplexml_load_string($query);
//echo '<pre>';
//print_r($array);
public $TotalResults;
$TotalResults = $array['Meta']->TotalResults;
echo "function is correct";
}
}
这给了我错误。请帮助我并修改我的代码。您错误地使用了成员变量:
<?php
class myclass {
public function getresults()
{
$url = 'http://www.slideshare.net/api/2/search_slideshows?q=google';
echo $url;
$ch=curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_USERAGENT, 'Your application name');
$query = curl_exec($ch);
$errorCode = curl_errno($ch);
curl_close($ch);
$array = (array) simplexml_load_string($query);
//echo '<pre>';
//print_r($array);
public $TotalResults;
$TotalResults = $array['Meta']->TotalResults;
echo "function is correct";
}
}
$obj = new myclass;
echo $obj1->getresults();
class-myclass{
公共$TotalResults;//TotalResults=$array['Meta']->TotalResults;//getresults()
(其中,$obj
必须由$obj=new myclass();
之前实例化),$obj->TotalResults
应该包含您想要的内容
它有用吗?类似这样的东西:
我们必须猜测错误是什么吗?@rajzana:给我们更多关于错误的细节-你的代码中有一些问题,但它们可能不是全部,也不是最重要的问题。
class myclass{
public $TotalResults; // <-- added member variable
public function getresults{
$url = 'http://www.slideshare.net/api/2/search_slideshows?q=google';
echo $url;
$ch=curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_USERAGENT, 'Your application name');
$query = curl_exec($ch);
$errorCode = curl_errno($ch);
curl_close($ch);
$array = (array) simplexml_load_string($query);
//echo '<pre>';
//print_r($array);
$this->TotalResults = $array['Meta']->TotalResults; // <-- corrected
echo "function is correct";
}
}
<?php
class myclass {
public function getresults()
{
$url = 'http://www.slideshare.net/api/2/search_slideshows?q=google';
echo $url;
$ch=curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_USERAGENT, 'Your application name');
$query = curl_exec($ch);
$errorCode = curl_errno($ch);
curl_close($ch);
$array = (array) simplexml_load_string($query);
//echo '<pre>';
//print_r($array);
public $TotalResults;
$TotalResults = $array['Meta']->TotalResults;
echo "function is correct";
}
}
$obj = new myclass;
echo $obj1->getresults();