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<?php $x = " i love you/i love her/you love me/you love me "; $sentence = explode('/',trim($x)); $value_counts = array_count_values($sentence); $expected_result = []; foreach($value_counts as $k=>$v){ if($v<2){ $expected_result[] = str_replace(' ','-',$k); }else{ $expected_result[] = str_replace(' ','-',$k); for($i=2;$i<=$v;$i++){ $expected_result[] = str_replace(' ','--',$k); } } } echo " ".implode('/', $expected_result)." ";
Output for git.master, git.master_jit, rfc.property-hooks
i-love-you/i-love-her/you-love-me/you--love--me

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