3v4l.org

run code in 300+ PHP versions simultaneously
<?php function no_dupes(array $input_array) { return array_count_values($input_array) === count($input_array); } var_export(no_dupes([1, 1.5])); // should be true
Output for 8.0.0 - 8.0.13, 8.1rc1 - rc3
Warning: array_count_values(): Can only count string and integer values, entry skipped in /in/3FlBJ on line 4 false
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.26
Warning: array_count_values(): Can only count STRING and INTEGER values! in /in/3FlBJ on line 4 false

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