3v4l.org

run code in 300+ PHP versions simultaneously
<?php $profile_fields = array( 'id', 'first-name', 'last-name', 'headline', 'location:(name)', 'location:(country:(code))', 'industry', 'num-connections', 'summary', 'specialties', 'picture-url', 'email-address', 'last-modified-timestamp', 'interests', 'educations', 'date-of-birth', ); echo implode(',',$profile_fields);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
id,first-name,last-name,headline,location:(name),location:(country:(code)),industry,num-connections,summary,specialties,picture-url,email-address,last-modified-timestamp,interests,educations,date-of-birth

preferences:
211 ms | 406 KiB | 341 Q