3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump( array_map( fn ($x) => strtolower($x), ['FOO', 'BaR', 'bAz'] ) );
Output for 7.4.4 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
array(3) { [0]=> string(3) "foo" [1]=> string(3) "bar" [2]=> string(3) "baz" }
Output for 7.3.0 - 7.3.33
Parse error: syntax error, unexpected '=>' (T_DOUBLE_ARROW), expecting ')' in /in/mqPIb on line 5
Process exited with code 255.
Output for 7.1.25 - 7.1.30, 7.2.0 - 7.2.33
Parse error: syntax error, unexpected '=>' (T_DOUBLE_ARROW), expecting ',' or ')' in /in/mqPIb on line 5
Process exited with code 255.
preferences:
166.83 ms | 409 KiB | 5 Q