3v4l.org

run code in 300+ PHP versions simultaneously
<?php $search_tags = array( "happy", "summer", "beach", "glasses", "umbrella", "funny", "people", "music", "rap" ); $accounts = array( "account A", "account B", "account C" ); $accounts = new InfiniteIterator(new ArrayIterator((object) $accounts)); echo ucfirst($accounts->current()), PHP_EOL;
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Deprecated: ucfirst(): Passing null to parameter #1 ($string) of type string is deprecated in /in/nDERK on line 21
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 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
Output for 5.0.0 - 5.0.5
Fatal error: Class 'InfiniteIterator' not found in /in/nDERK on line 20
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Fatal error: Cannot instantiate non-existent class: infiniteiterator in /in/nDERK on line 20
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: infiniteiterator in /in/nDERK on line 20
preferences:
297.18 ms | 401 KiB | 461 Q