3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $body = array( 'user'=> array( 'userName' => 'JaneSmith', 'firstName' => 'Jane', 'lastName' => 'Smith' ), 'memberships' => array( array( 'productName' => 'WP-TEST', 'membershipType' => 'PAID', 'basic' => 'true' ) ) ); var_dump(json_encode($body),true);
based on m8b2W
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.2.0
string(152) "{"user":{"userName":"JaneSmith","firstName":"Jane","lastName":"Smith"},"memberships":[{"productName":"WP-TEST","membershipType":"PAID","basic":"true"}]}" bool(true)