PHP Propel

fake option for migration

docker-compose run --rm -w /var/src/Propel api ./../vendor/bin/propel migrate --fake

it doesn't actually run the migrations, but it marks them as having been completed. It will add versions in propel_migration table.

Public key and private key

Mainly there are two use cases.

• encrypte message using public key. Then decrypt message using private key
• digitally sign message using private key. Then verify signature using public key

AWS policy to restrict ips to AWS Gateway API

Here is a sample policy. Only ips in the list will allow to call that API

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Condition": {
                "IpAddress": {
                    "aws:SourceIp": [
                        "223.333.923.28/32",
                        "162.222.229.139/32"
                    ]
                }
            },
            "Action": [
                "execute-api:Invoke"
            ],
            "Resource": [
                "arn:aws:execute-api:us-west-1:112334444444:1wertttt/*/POST/v1/bill",
                "arn:aws:execute-api:us-west-1:112334444444:1wertttt/*/GET/vi/bill/*"
            ],
            "Effect": "Allow"
        }
    ]
}

docker container run breakdown

Here is a command to run php 8 in a host machine which only has php 7 installed

docker run --rm --volume `pwd`:/var/src/ -w /var/src php:8.0.26-cli-alpine3.16  php ./bin/swagger_gen.php ./rest/swagger/v1/

Breakdown

• --rm Automatically remove the container and its associated anonymous volumes when it exits

• --volume `pwd`:/var/src/ Bind mount a volume (docker run --volume host-path:container-path

• pwd present working directory of your host machine

• -w Working directory inside the container

Indirect modification of overloaded property has no effect

<?php
error_reporting(E_ALL);

class PropertyTest
{
    /**  Location for overloaded data.  */
    private $data = array();


    public function __set($name, $value)
    {
        $this->data[$name] = $value;
    }

    public function __get($name)
    {
        if (array_key_exists($name, $this->data)) {
            return $this->data[$name];
        } else {
            throw new Exception($name . " not found");
        }
    }
}

$obj = new PropertyTest();
$obj->goods = ["a", "b"];

//the line below will throw notice
//Indirect modification of overloaded property PropertyTest::$goods has no effect
$obj->goods[] = "c";

//still got ["a", "b"]
var_dump($obj->goods);

To fix the error, replace the last two lines of codes with the below.

$obj->goods= array_merge($obj->goods, ['c']);

//got ["a", "b", "c"]
var_dump($obj->goods);

Here is another example

$obj = new PropertyTest();
$obj->test=["a"=>2];
var_dump($obj->test);
//will throw the notice and will not change value
$obj->test['a'] =3;
//the result is the same as what we get from the last dump
var_dump($obj->test);

To make it work as expected

$obj = new PropertyTest();
$obj->test=["a"=>2];
var_dump($obj->test);

$ans = $obj->test;
$ans['a'] = 3;
$obj->test = $ans;
var_dump($obj->test)