php調(diào)用python并傳遞參數(shù)

exec("D:\python3.7\python D:\\python3.7\\test.py {$_REQUEST['url']}");

<?php

class getSource{
    public $con='';
    function __construct()
    {
        $this->con=mysqli_connect("localhost","root","root","yingshi");
    }
    function findSource()
    {
        $sql = "select source from source where url='".$_REQUEST['url']."'";
        $result=mysqli_query($this->con,$sql);
        while($arr=mysqli_fetch_array($result,MYSQL_NUM)){
            $source=$arr[0];
        }
        if($source)
        {
            return $source;
        }else{
            return false;
        }
    }
    function getSource()
    {
        $source=$this->findSource();
        if($source)
        {
            return $source;
        }else{
            exec("D:\python3.7\python D:\\python3.7\\test.py {$_REQUEST['url']}");
            sleep(30);
            return $this->findSource();
        }
    }
}

$test=new getSource();
$source=$test->getSource();