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<?php function noDuplicates($array) { return count($array)==count(array_count_values($array)); } var_export(noDuplicates([1, 1.5]));
Output for git.master, git.master_jit, rfc.property-hooks
Warning: array_count_values(): Can only count string and integer values, entry skipped in /in/FSr7P on line 4 false

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