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run code in 300+ PHP versions simultaneously
<?php function handle_exception( $arg ) { echo "exception callback" . PHP_EOL; } set_exception_handler( 'handle_exception' ); function bar( $arg ) { throw new Exception( 'fail here' ); } ob_start( 'bar' ); exit;
Output for 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
exception callback
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29

Process exited with code 255.
preferences:
58.81 ms | 407 KiB | 5 Q