本人初学php,下面的程序输出结果,$name都为空。各位知道咋回事吗?
<?php
class base
{
private $name ;
function __construct ($name2)
{
$name=$name2;
echo "base(__construct):my name:".$name ."\n";
}
function __destruct ()
{
echo "base(__destruct):"."\n";
}
}class TestClass extends base
{
private $name ="Son";
function __construct ()
{
parent::__construct($name);
echo "TestClass(__construct):my name:".$name."\n";
}
function __destruct ()
{
echo "TestClass(__destruct):"."\n";
}
}$testClass=new TestClass();?>
<?php
class base
{
private $name ;
function __construct ($name2)
{
$name=$name2;
echo "base(__construct):my name:".$name ."\n";
}
function __destruct ()
{
echo "base(__destruct):"."\n";
}
}class TestClass extends base
{
private $name ="Son";
function __construct ()
{
parent::__construct($name);
echo "TestClass(__construct):my name:".$name."\n";
}
function __destruct ()
{
echo "TestClass(__destruct):"."\n";
}
}$testClass=new TestClass();?>
{
private $name ="Son";
function __construct ()
{
parent::__construct($this->name);
echo "TestClass(__construct):my name:".$this->name."\n";
}
function __destruct ()
{
echo "TestClass(__destruct):"."\n";
}
}
class TestClass extends base
{
private $name ="Son";
function __construct ()
{
parent::__construct($this->name);
echo "TestClass(__construct):my name:".$this->name."\n";
}
function __destruct ()
{
echo "TestClass(__destruct):"."\n";
}
}
找本基础的书看看
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<b>Fatal error</b>: Cannot access empty property in <b>G:\DedeAMPZ\WebRoot\Default\work\phpTest\TestClass.php</b> on line <b>22</b><br />