3v4l.org

run code in 300+ PHP versions simultaneously
<?php$foo = ['10' => "foo", '101' => 'bar', '20' => 'foobar'];var_dump(ksort($foo, SORT_NUMERIC));
Output for 5.4.0 - 5.4.32, 7.2.29 - 7.2.33, 7.3.16 - 7.3.31, 7.4.3 - 7.4.32, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
<?php$foo = ['10' => "foo", '101' => 'bar', '20' => 'foobar'];var_dump(ksort($foo, SORT_NUMERIC));
Output for 8.0.13
Parse error: syntax error, unexpected variable "$foo" in /in/aMG0v on line 1
Process exited with code 255.
Output for 5.4.34, 7.3.32 - 7.3.33, 7.4.33
Parse error: syntax error, unexpected '$foo' (T_VARIABLE) in /in/aMG0v on line 1
Process exited with code 255.
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