3v4l.org

run code in 300+ PHP versions simultaneously
<?php function helloWorld(string $username) : string { return "Hello world {$username}"; } echo helloWorld('Thomas')
Output for 7.0.0 - 7.0.2
Parse error: syntax error, unexpected end of file, expecting ',' or ';' in /in/QB8ur on line 6
Process exited with code 255.
Output for 5.5.24 - 5.5.31, 5.6.8 - 5.6.17
Parse error: syntax error, unexpected ':', expecting '{' in /in/QB8ur on line 2
Process exited with code 255.
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