PHP - My Awesome Moments

hCaptcha Demo using PHP

hCaptcha is alternative to popular Google reCaptcha. It is used to avoid any form from being spammed by bots.

Why I use hCaptcha?

According to hCaptcha website owner can earn income by using their captcha technology. For the moment, I haven’t earned anything yet from hCaptcha.

Demo hCaptcha Using PHP

Demo hCaptcha

For this demo, you just submit the form by clicking “Submit form”. If you do the the hCaptcha correctly you will get hCaptcha success if not hCaptcha fail.

How to Use hCaptcha Using PHP?

There are 3 Important steps:

Add the hCaptcha widget to your webpage
Verify the user response on server side
Check the hCaptcha is ticked or no

Add the hCaptcha widget to your webpage

Add the script at HTML head

<script src="https://js.hcaptcha.com/1/api.js" async defer></script>

1	<script src="https://js.hcaptcha.com/1/api.js" async defer></script>

Add the hCaptcha widget to your form

<div class="h-captcha" data-sitekey="your_site_key"></div>

1	<div class="h-captcha" data-sitekey="your_site_key"></div>

Verify the user response on server side

According to hCaptcha documentation, to use POST method to query their endpoint.

    $hcaptcha = 'https://hcaptcha.com/siteverify';//hcaptcha endpoint to verify the hcaptcha

    $response = $_POST['h-captcha-response'];

    $curlSession = curl_init();
    curl_setopt($curlSession, CURLOPT_URL, $hcaptcha);
    curl_setopt($curlSession, CURLOPT_POST, 1);
    curl_setopt($curlSession, CURLOPT_POSTFIELDS, "response=".$response."&secret=YOUR_SECRET");
    curl_setopt($curlSession, CURLOPT_BINARYTRANSFER, true);
    curl_setopt($curlSession, CURLOPT_RETURNTRANSFER, true);


    $jsonData = json_decode(curl_exec($curlSession));

    curl_close($curlSession);

$hcaptcha = 'https://hcaptcha.com/siteverify';//hcaptcha endpoint to verify the hcaptcha

$response = $_POST['h-captcha-response'];

$curlSession = curl_init();

curl_setopt($curlSession, CURLOPT_URL, $hcaptcha);

curl_setopt($curlSession, CURLOPT_POST, 1);

curl_setopt($curlSession, CURLOPT_POSTFIELDS, "response=".$response."&secret=YOUR_SECRET");

curl_setopt($curlSession, CURLOPT_BINARYTRANSFER, true);

curl_setopt($curlSession, CURLOPT_RETURNTRANSFER, true);

$jsonData = json_decode(curl_exec($curlSession));

curl_close($curlSession);

Example of Success Response

If you print_r($json_data) will get the response below:

success e.g stdClass Object ( [success] =&gt; 1 [challenge_ts] =&gt; 2022-08-06T11:38:30.000000Z [hostname] =&gt; awesomegrasp.com )

1	success e.g stdClass Object ( [success] => 1 [challenge_ts] => 2022-08-06T11:38:30.000000Z [hostname] => awesomegrasp.com )

You can do your programming logic based on the success status.

Check the hCaptcha is ticked or no

There 2 methods to do this

Check the post value of ‘h-captcha-response’
Use data-callback

Method #1: Check the post value of ‘h-captcha-response’

The problem with the form as it is, if a user doesn’t do the hCaptcha test, the user still can submit the form. So we need to add javascript checking on the client side to check whether the user has done the captcha test or no.

If you have done the captcha test, hCaptcha will send a string of response in the $_POST[‘h-captcha-response’]. If not this string will be empty.

jQuery('#submit').click(function(e){
    var hcaptchaVal = jQuery('[name=h-captcha-response]').val();
    if(hcaptchaVal == ""){
        e.preventDefault(); //avoid the form from being submitted
        alert("Please complete the captcha test!");
    }
});

jQuery('#submit').click(function(e){

var hcaptchaVal = jQuery('[name=h-captcha-response]').val();

if(hcaptchaVal == ""){

e.preventDefault(); //avoid the form from being submitted

alert("Please complete the captcha test!");

}

});

The Full Code for Method #1

<?php
if(isset($_POST)):
    $hcaptcha = 'https://hcaptcha.com/siteverify';//hcaptcha endpoint to verify the hcaptcha

    $response = $_POST['h-captcha-response'];

    $curlSession = curl_init();
    curl_setopt($curlSession, CURLOPT_URL, $hcaptcha);
    curl_setopt($curlSession, CURLOPT_POST, 1);
    curl_setopt($curlSession, CURLOPT_POSTFIELDS, "response=".$response."&secret=YOUR_SECRET");
    curl_setopt($curlSession, CURLOPT_BINARYTRANSFER, true);
    curl_setopt($curlSession, CURLOPT_RETURNTRANSFER, true);

    //* success e.g stdClass Object ( [success] => 1 [challenge_ts] => 2022-08-06T11:38:30.000000Z [hostname] => pengantin.com.my )
    //* fail e.g stdClass Object ( [success] => [error-codes] => Array ( [0] => missing-input-secret [1] => invalid-input-response ) )
    $jsonData = json_decode(curl_exec($curlSession));

    curl_close($curlSession);

endif;

?>
<!doctype html>
<html lang="en">

<head>
<meta charset="utf-8">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-MrcW6ZMFYlzcLA8Nl+NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP+JcXn/tWtIaxVXM" crossorigin="anonymous"></script>
<script src="https://js.hcaptcha.com/1/api.js" async defer></script>
<script src="https://code.jquery.com/jquery-3.6.0.min.js" integrity="sha256-/xUj+3OJU5yExlq6GSYGSHk7tPXikynS7ogEvDej/m4=" crossorigin="anonymous"></script>

<title>hCaptcha Demo with PHP</title>
</head>

<body>
<h1>hCaptcha Demo with PHP</h1>

<?php 

  if(isset($_POST) && sizeof($_POST) > 0):
        if($jsonData->success == 1):
    ?>
<div class="alert alert-success" role="alert">
  hCaptcha Success!
</div>
<?php else: ?>
<div class="alert alert-danger" role="alert">
  hCaptcha Fail!
</div>
<?php endif; ?>
<?php endif;?>
<form action="https://www.awesomegrasp.com/wp-content/demo/hcaptcha/" method="post">
<div class="mb-3">
  <label for="exampleFormControlInput1" class="form-label">Email address</label>
  <input type="email" class="form-control" id="exampleFormControlInput1" placeholder="name@example.com">
</div>
<div class="mb-3">
  <label for="exampleFormControlTextarea1" class="form-label">Example textarea</label>
  <textarea class="form-control" id="exampleFormControlTextarea1" rows="3"></textarea>
</div>
<div class="col-12">
<div class="h-captcha" data-sitekey="YOUR_KEY"></div>
</div>

<div class="col-12">
    <button class="btn btn-primary" type="submit" id="submit">Submit form</button>
  </div>
</form>

<script>
jQuery('#submit').click(function(e){
    var hcaptchaVal = jQuery('[name=h-captcha-response]').val();
    if(hcaptchaVal == ""){
        e.preventDefault(); //avoid the form from being submitted
        alert("Please complete the captcha test!");
    }
});
</script>
</body>
</html>

<?php

if(isset($_POST)):

$hcaptcha = 'https://hcaptcha.com/siteverify';//hcaptcha endpoint to verify the hcaptcha

$response = $_POST['h-captcha-response'];

$curlSession = curl_init();

curl_setopt($curlSession, CURLOPT_URL, $hcaptcha);

curl_setopt($curlSession, CURLOPT_POST, 1);

curl_setopt($curlSession, CURLOPT_POSTFIELDS, "response=".$response."&secret=YOUR_SECRET");

curl_setopt($curlSession, CURLOPT_BINARYTRANSFER, true);

curl_setopt($curlSession, CURLOPT_RETURNTRANSFER, true);

//* success e.g stdClass Object ( [success] => 1 [challenge_ts] => 2022-08-06T11:38:30.000000Z [hostname] => pengantin.com.my )

//* fail e.g stdClass Object ( [success] => [error-codes] => Array ( [0] => missing-input-secret [1] => invalid-input-response ) )

$jsonData = json_decode(curl_exec($curlSession));

curl_close($curlSession);

endif;

<!doctype html>

<head>

<title>hCaptcha Demo with PHP</title>

</head>

<body>

<h1>hCaptcha Demo with PHP</h1>

<?php

if(isset($_POST) && sizeof($_POST) > 0):

if($jsonData->success == 1):

hCaptcha Success!

</div>

<?php else: ?>

hCaptcha Fail!

</div>

<?php endif; ?>

<?php endif;?>

<label for="exampleFormControlInput1" class="form-label">Email address</label>

</div>

<label for="exampleFormControlTextarea1" class="form-label">Example textarea</label>

</div>

</div>

<button class="btn btn-primary" type="submit" id="submit">Submit form</button>

</div>

</form>

jQuery('#submit').click(function(e){

var hcaptchaVal = jQuery('[name=h-captcha-response]').val();

if(hcaptchaVal == ""){

e.preventDefault(); //avoid the form from being submitted

alert("Please complete the captcha test!");

}

});

</script>

</body>

</html>

Method #2 – Use data-callback

Demo #2 Use Data Callback

hCaptcha has a call back option for when the checkbox is checked.

  <div class="h-captcha" data-callback="recaptchaCallback" data-sitekey="YOUR_KEY"></div>

1	<div class="h-captcha" data-callback="recaptchaCallback" data-sitekey="YOUR_KEY"></div>

Disable the submit button

<button class="btn btn-primary" type="submit" id="submit" disabled>Submit form</button>

1	<button class="btn btn-primary" type="submit" id="submit" disabled>Submit form</button>

Then create a callback function:

function recaptchaCallback() {
    jQuery('#submit').removeAttr('disabled');
};

function recaptchaCallback() {

jQuery('#submit').removeAttr('disabled');

};

The Full Code for Method #2

<?php
if(isset($_POST)):
    $hcaptcha = 'https://hcaptcha.com/siteverify';//hcaptcha endpoint to verify the hcaptcha

    $response = $_POST['h-captcha-response'];

    $curlSession = curl_init();
    curl_setopt($curlSession, CURLOPT_URL, $hcaptcha);
    curl_setopt($curlSession, CURLOPT_POST, 1);
    curl_setopt($curlSession, CURLOPT_POSTFIELDS, "response=".$response."&secret=0x0927A785e4acAcc8aE08b67ee1496B1FB238f4a9");
    curl_setopt($curlSession, CURLOPT_BINARYTRANSFER, true);
    curl_setopt($curlSession, CURLOPT_RETURNTRANSFER, true);

    //* success e.g stdClass Object ( [success] => 1 [challenge_ts] => 2022-08-06T11:38:30.000000Z [hostname] => pengantin.com.my )
    //* fail e.g stdClass Object ( [success] => [error-codes] => Array ( [0] => missing-input-secret [1] => invalid-input-response ) )
    $jsonData = json_decode(curl_exec($curlSession));

    curl_close($curlSession);

endif;

?>
<!doctype html>
<html lang="en">

<head>
<meta charset="utf-8">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-MrcW6ZMFYlzcLA8Nl+NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP+JcXn/tWtIaxVXM" crossorigin="anonymous"></script>
<script src="https://js.hcaptcha.com/1/api.js" async defer></script>
<script src="https://code.jquery.com/jquery-3.6.0.min.js" integrity="sha256-/xUj+3OJU5yExlq6GSYGSHk7tPXikynS7ogEvDej/m4=" crossorigin="anonymous"></script>

<title>hCaptcha Demo with PHP</title>
</head>

<body>
<h1>hCaptcha Demo with PHP</h1>

<?php 

  if(isset($_POST) && sizeof($_POST) > 0):
        if($jsonData->success == 1):
    ?>
<div class="alert alert-success" role="alert">
  hCaptcha Success!
</div>
<?php else: ?>
<div class="alert alert-danger" role="alert">
  hCaptcha Fail!
</div>
<?php endif; ?>
<?php endif;?>
<form action="https://www.awesomegrasp.com/wp-content/demo/hcaptcha/index2.php" method="post">
<div class="mb-3">
  <label for="exampleFormControlInput1" class="form-label">Email address</label>
  <input type="email" class="form-control" id="exampleFormControlInput1" placeholder="name@example.com">
</div>
<div class="mb-3">
  <label for="exampleFormControlTextarea1" class="form-label">Example textarea</label>
  <textarea class="form-control" id="exampleFormControlTextarea1" rows="3"></textarea>
</div>
<div class="col-12">
<div class="h-captcha" data-callback="recaptchaCallback" data-sitekey="785cebcf-8402-408b-93b7-ca9a0b295b6b"></div>
</div>

<div class="col-12">
    <button class="btn btn-primary" type="submit" id="submit" disabled>Submit form</button>
  </div>
</form>

<script>
function recaptchaCallback() {
    jQuery('#submit').removeAttr('disabled');
};
</script>
</body>
</html>

<?php

if(isset($_POST)):

$hcaptcha = 'https://hcaptcha.com/siteverify';//hcaptcha endpoint to verify the hcaptcha

$response = $_POST['h-captcha-response'];

$curlSession = curl_init();

curl_setopt($curlSession, CURLOPT_URL, $hcaptcha);

curl_setopt($curlSession, CURLOPT_POST, 1);

curl_setopt($curlSession, CURLOPT_POSTFIELDS, "response=".$response."&secret=0x0927A785e4acAcc8aE08b67ee1496B1FB238f4a9");

curl_setopt($curlSession, CURLOPT_BINARYTRANSFER, true);

curl_setopt($curlSession, CURLOPT_RETURNTRANSFER, true);

//* success e.g stdClass Object ( [success] => 1 [challenge_ts] => 2022-08-06T11:38:30.000000Z [hostname] => pengantin.com.my )

//* fail e.g stdClass Object ( [success] => [error-codes] => Array ( [0] => missing-input-secret [1] => invalid-input-response ) )

$jsonData = json_decode(curl_exec($curlSession));

curl_close($curlSession);

endif;

<!doctype html>

<head>

<title>hCaptcha Demo with PHP</title>

</head>

<body>

<h1>hCaptcha Demo with PHP</h1>

<?php

if(isset($_POST) && sizeof($_POST) > 0):

if($jsonData->success == 1):

hCaptcha Success!

</div>

<?php else: ?>

hCaptcha Fail!

</div>

<?php endif; ?>

<?php endif;?>

<label for="exampleFormControlInput1" class="form-label">Email address</label>

</div>

<label for="exampleFormControlTextarea1" class="form-label">Example textarea</label>

</div>

</div>

<button class="btn btn-primary" type="submit" id="submit" disabled>Submit form</button>

</div>

</form>

function recaptchaCallback() {

jQuery('#submit').removeAttr('disabled');

};

</script>

</body>

</html>

Google reCaptcha v2 Doesn’t Work using PHP on my Website

My website is a WordPress website. I wanted to create a form with a reCaptcha protection using Google reCaptcha v2 (tick box). Surprisingly it doesn’t work even though it works on my other website using same PHP code.

After Ticking the reCaptcha

It doesn’t work if use file_get_contents

$data = array('secret' => 'your-secret', 'response' => $_POST['g-recaptcha-response']);

$url = 'https://www.google.com/recaptcha/api/siteverify?secret='
               .$data['secret'] . '&response=' . $data['response'];
$result = file_get_contents($url);
$result = json_decode($result);


if(!$result->success):
 echo 'error';
 return;
endif;

echo 'success';

$data = array('secret' => 'your-secret', 'response' => $_POST['g-recaptcha-response']);

$url = 'https://www.google.com/recaptcha/api/siteverify?secret='

.$data['secret'] . '&response=' . $data['response'];

$result = file_get_contents($url);

$result = json_decode($result);

if(!$result->success):

echo 'error';

return;

endif;

echo 'success';

Google reCaptcha keeps sending me error.

It works if using curl

$url = 'https://www.google.com/recaptcha/api/siteverify';
$data = array('secret' => 'your secret key', 'response' => $_POST['g-recaptcha-response']);

$verify = curl_init();
curl_setopt($verify, CURLOPT_URL, $url);
curl_setopt($verify, CURLOPT_POST, true);
curl_setopt($verify, CURLOPT_POSTFIELDS, http_build_query($data));
curl_setopt($verify, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($verify);

$responseData = json_decode($response);
if($responseData->success):
 // your success code goes here
// echo 'success';
     return true;
                  
     else:
        // return error to user; they did not pass
        // echo 'fail';

        return false;
endif;

$url = 'https://www.google.com/recaptcha/api/siteverify';

$data = array('secret' => 'your secret key', 'response' => $_POST['g-recaptcha-response']);

$verify = curl_init();

curl_setopt($verify, CURLOPT_URL, $url);

curl_setopt($verify, CURLOPT_POST, true);

curl_setopt($verify, CURLOPT_POSTFIELDS, http_build_query($data));

curl_setopt($verify, CURLOPT_RETURNTRANSFER, true);

$response = curl_exec($verify);

$responseData = json_decode($response);

if($responseData->success):

// your success code goes here

// echo 'success';

return true;

else:

// return error to user; they did not pass

// echo 'fail';

return false;

endif;

PHP is not running after upgrade MacOS Big Sur on Apple Macbook Pro M1

Another problem I always face after upgrading MacOS where PHP is not running anymore. I have to google to find solution. Now I decided to write step by step tutorial so easy for my future reference and hopefully can help others who face the same thing.

1) My phpMyAdmin instead of showing login page, it displays its PHP code.

2) Uncomment PHP Module

Open httpd.conf

nano /etc/httpd.conf

1	nano /etc/httpd.conf

Find php by typing

ctrl + w and type php

1	ctrl + w and type php

Remove # to uncomment the PHP module.

Save the changes by typing

ctrl + x then type Y

1	ctrl + x then type Y

3) Restart Apache

sudo apachectl restart

1	sudo apachectl restart

4) Refresh the PHP page

macos big sur php running again after change httpd conf

PHP Serialize String and JSON Object

I’m not really understand difference between PHP serialize string and JSON object.

I notice PHP when stored data inside database is in PHP serialize string format. Serialize string is only available in PHP, hence it is not interoperable with NodeJS.

Hence, I did simple comparison for better understanding in order to make my NodeJS can read and write PHP data and vice versa.

PHP Array Conversion to PHP Serialize String and JSON Object

//convert PHP array to serialize string and JSON object
$array = array( '1' =&gt; 'elem 1', '2'=&gt; 'elem 2', '3'=&gt;' elem 3');


$serialized = serialize($array);
print_r($serialized);
//expected output - serialize string: a:3:{i:1;s:6:"elem 1";i:2;s:6:"elem 2";i:3;s:7:" elem 3";}


$json = json_encode($array);
print_r($json);
//expected output - JSON object: {"1":"elem 1","2":"elem 2","3":" elem 3"}

//convert back to PHP array

$unserialized = unserialize($serialized);
print_r($unserialized);
//expected output - unserialized: Array ( [1] =&gt; elem 1 [2] =&gt; elem 2 [3] =&gt; elem 3 )

$decoded1 = json_decode($json);
print_r($decoded1);
//expected output - decoded into PHP object: stdClass Object ( [1] =&gt; elem 1 [2] =&gt; elem 2 [3] =&gt; elem 3 )


$decoded2 = json_decode($json, true);
print_r($decoded2);
//expected output - decoded into PHP array: Array ( [1] =&gt; elem 1 [2] =&gt; elem 2 [3] =&gt; elem 3 )

//convert PHP array to serialize string and JSON object

$array = array( '1' => 'elem 1', '2'=> 'elem 2', '3'=>' elem 3');

$serialized = serialize($array);

print_r($serialized);

//expected output - serialize string: a:3:{i:1;s:6:"elem 1";i:2;s:6:"elem 2";i:3;s:7:" elem 3";}

$json = json_encode($array);

print_r($json);

//expected output - JSON object: {"1":"elem 1","2":"elem 2","3":" elem 3"}

//convert back to PHP array

$unserialized = unserialize($serialized);

print_r($unserialized);

//expected output - unserialized: Array ( [1] => elem 1 [2] => elem 2 [3] => elem 3 )

$decoded1 = json_decode($json);

print_r($decoded1);

//expected output - decoded into PHP object: stdClass Object ( [1] => elem 1 [2] => elem 2 [3] => elem 3 )

$decoded2 = json_decode($json, true);

print_r($decoded2);

//expected output - decoded into PHP array: Array ( [1] => elem 1 [2] => elem 2 [3] => elem 3 )

PHP Object Conversion to PHP Serialize String and JSON Object

$object = new stdClass();
$object-&gt;name = 'Here we go';
$object-&gt;message = 'Hello world';


$serialized = serialize($object);
print_r($serialized);
//expected output - serialize string: O:8:"stdClass":2:{s:4:"name";s:10:"Here we go";s:7:"message";s:11:"Hello world";}
 

$json = json_encode($object);
print_r($json);
//expected output - json object: {"name":"Here we go","message":"Hello world"}

$unserialized = unserialize($serialized);
print_r($unserialized);
//expected output - unserialized: stdClass Object ( [name] =&gt; Here we go [message] =&gt; Hello world )

$decoded = json_decode($json);
print_r($decoded);
//expected output - decoded JSON: stdClass Object ( [name] =&gt; Here we go [message] =&gt; Hello world )

$decoded2 = json_decode($json, true);
print_r($decoded2);
//expected output - decoded JSON: Array ( [name] =&gt; Here we go [message] =&gt; Hello world )

$object = new stdClass();

$object->name = 'Here we go';

$object->message = 'Hello world';

$serialized = serialize($object);

print_r($serialized);

//expected output - serialize string: O:8:"stdClass":2:{s:4:"name";s:10:"Here we go";s:7:"message";s:11:"Hello world";}

$json = json_encode($object);

print_r($json);

//expected output - json object: {"name":"Here we go","message":"Hello world"}

$unserialized = unserialize($serialized);

print_r($unserialized);

//expected output - unserialized: stdClass Object ( [name] => Here we go [message] => Hello world )

$decoded = json_decode($json);

print_r($decoded);

//expected output - decoded JSON: stdClass Object ( [name] => Here we go [message] => Hello world )

$decoded2 = json_decode($json, true);

print_r($decoded2);

//expected output - decoded JSON: Array ( [name] => Here we go [message] => Hello world )

PHP Array of Object Conversion to PHP Serialize String and JSON Object

$object1 = new stdClass();
$object1-&gt;color = 'blue';
$object1-&gt;type = 'suv';

$object2 = new stdClass();
$object2-&gt;color = 'white';
$object2-&gt;type = 'mpv';

$arrObjects = array($object1, $object2);


$serialized = serialize($arrObjects);
print_r($serialized);
//expected output - serialize: a:2:{i:0;O:8:"stdClass":2:{s:5:"color";s:4:"blue";s:4:"type";s:3:"suv";}i:1;O:8:"stdClass":2:{s:5:"color";s:5:"white";s:4:"type";s:3:"mpv";}}


$json = json_encode($arrObjects);
print_r($json);
//expected output - JSON: [{"color":"blue","type":"suv"},{"color":"white","type":"mpv"}]
 

$unserialized = unserialize($serialized);
print_r($unserialized);
//expected output - unserialize: Array ( [0] =&gt; stdClass Object ( [color] =&gt; blue [type] =&gt; suv ) [1] =&gt; stdClass Object ( [color] =&gt; white [type] =&gt; mpv ) )


$decoded = json_decode($json);
print_r($decoded);
//expected output - decoded: Array ( [0] =&gt; stdClass Object ( [color] =&gt; blue [type] =&gt; suv ) [1] =&gt; stdClass Object ( [color] =&gt; white [type] =&gt; mpv ) )


$decoded2 = json_decode($json, true);
print_r($decoded2);
//expected output - decoded with true: Array ( [0] =&gt; Array ( [color] =&gt; blue [type] =&gt; suv ) [1] =&gt; Array ( [color] =&gt; white [type] =&gt; mpv ) )

$object1 = new stdClass();

$object1->color = 'blue';

$object1->type = 'suv';

$object2 = new stdClass();

$object2->color = 'white';

$object2->type = 'mpv';

$arrObjects = array($object1, $object2);

$serialized = serialize($arrObjects);

print_r($serialized);

//expected output - serialize: a:2:{i:0;O:8:"stdClass":2:{s:5:"color";s:4:"blue";s:4:"type";s:3:"suv";}i:1;O:8:"stdClass":2:{s:5:"color";s:5:"white";s:4:"type";s:3:"mpv";}}

$json = json_encode($arrObjects);

print_r($json);

//expected output - JSON: [{"color":"blue","type":"suv"},{"color":"white","type":"mpv"}]

$unserialized = unserialize($serialized);

print_r($unserialized);

//expected output - unserialize: Array ( [0] => stdClass Object ( [color] => blue [type] => suv ) [1] => stdClass Object ( [color] => white [type] => mpv ) )

$decoded = json_decode($json);

print_r($decoded);

//expected output - decoded: Array ( [0] => stdClass Object ( [color] => blue [type] => suv ) [1] => stdClass Object ( [color] => white [type] => mpv ) )

$decoded2 = json_decode($json, true);

print_r($decoded2);

//expected output - decoded with true: Array ( [0] => Array ( [color] => blue [type] => suv ) [1] => Array ( [color] => white [type] => mpv ) )