php 反射例子

php 反射例子

<?php

class  Printer
{

}

class  Student
{
    private $name;
    private $year;

    public function __construct($name, $year)
    {
        $this->name = $name;
        $this->year = $year;
    }

    public function getValue()
    {
        return $this->name;
    }

    public function setBase(Printer $printer, $name, $year = 10)
    {
        $this->name = $name;
        $this->year = $year;
    }
}

$refl_class = new ReflectionClass(Student::class);
$object = $refl_class->newInstanceArgs(["obama", 100]);
echo get_class($object) . "\n";
echo $object->getValue();


$refl_method = $refl_class->getMethod("setBase");
echo get_class($refl_method) . "\n";
$parameters = $refl_method->getParameters();
print_r($parameters);
foreach ($parameters as $parameter) {

    echo $parameter->getName() . "\n";
    print_r($parameter->getClass() );
    if ($parameter->getClass() != null) {
        echo $parameter->getClass()->getName() . "\n";
    }
    if ($parameter->isDefaultValueAvailable()) {
        echo $parameter->getDefaultValue() . "\n";
    }
    echo '===';
}


echo "\n";
function display($a, $b, Printer $printer)
{
    echo "called" . "\n";
}

$refl_function = new ReflectionFunction("display");
$parameters = $refl_function->getParameters();
foreach ($parameters as $parameter) {
    echo $parameter->getName() . "\n";
    if ($parameter->getClass() != null) {
        echo $parameter->getClass()->getName() . "\n";
    }
    if ($parameter->isDefaultValueAvailable()) {
        echo $parameter->getDefaultValue() . "\n";
    }
}

原文 http://www.php100.com/9/20/22/87470.html

来源：oschina

链接：https://my.oschina.net/shunshun/blog/3217605