Traversing a structure in PHP

I have the following structure:

Array
(
    [signupbasic] => Array
        (
            [0] => Array
                (
                    [name] => Enter your first name开发者_运维百科 or username
                    [email] => Enter your email address
                    [password] => Enter your password
                    [phone] => Enter your mobile number
                    [message1] => A text will be send to your phone - reply to validate
                    [gender] => Array
                        (
                            [label] => Gender
                            [values] => Array
                                (
                                    [0] => Array
                                        (
                                            [Female] => 1
                                        )

                                    [1] => Array
                                        (
                                            [Male] => 2
                                        )

                                )

                        )

                    [birthday] => Array
                        (
                            [label] => Date of birth
                            [values] => date
                        )

                    [message2] => By clicking on "Continue" below you agree to Terms of Service and Privacy Policy
                )

        )

)

As you can see Gender & Birthday are arrays of different sizes. I am not getting how can I traverse the above structure due to the varying size of Gender and Birthday.

How can I achieve this?

Why don't you just access those values separately? Just like you've probably done with name, email and password.

Let $o be the JSON and then do something along the lines of this:

$data = &$o['signupbasic'][0];

$genderObj   = $data['gender'];
$birthdayObj = $data['birthday'];

I'm not quite sure what you're trying to accomplish, could you post some PHP code?

I don't know if I got what you meant, but would it be something like this ?

foreach($json['signupbasic'][0]['gender']['values'] as $genderValue) {
  foreach($genderValue as $genderKey => $genderSubVal) {
    echo $genderKey." ".$genderSubVal."\n\r";
  }
}

foreach($json['signupbasic'][0]['birthday'] as $bdKey => $bdValue) {
  echo $bdKey." ".$bdValue."\n\r";
}

Assuming $json is the return value of your json_decode call.

For php to understanding json, it needs to be in a special format

{
    "property1": "value1",
    "property2": "value2",
    "property3": "value3",
    "property4": "value4"
}

see a better explenation on php.net json_decode() function