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<?php $array = [null, '', .0, false, null, 0, '0.0', -.1, "\0", false]; $unique = array(); foreach($array as $v){ isset($k[$v]) || ($k[$v]=1) && $unique[] = $v; } var_dump($unique);
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Implicit conversion from float -0.1 to int loses precision in /in/ZDcsU on line 8 array(4) { [0]=> NULL [1]=> float(0) [2]=> string(3) "0.0" [3]=> string(1) "" }

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