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 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
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 - 7.4.33
Warning: array_count_values(): Can only count STRING and INTEGER values! in /in/3FlBJ on line 4 false
preferences:
84.79 ms | 407 KiB | 5 Q