PHP removes duplicate data from an array

<?PHP/** * Remove duplicate data in array * by www.jbxue.com**/$input=Array("a" = "green", "" "," Red "," b "=" green "," "," Blue "," Red "," c "=" Witer "," Hello "," Witer ");//$result = Array_unique ($input);//Remove duplicate elements$result= A_array_unique ($input);//leaving only a single elementforeach($result  as $aa){Echo $aa." <br/> ";}functionMulti_unique ($array) {   foreach($array  as $k=$na)       $new[$k] =Serialize($na); $uniq=Array_unique($new); foreach($uniq  as $k=$ser)       $new 1[$k] =unserialize($ser); return($new 1);}functionA_array_unique ($array)//It 's better written.{   $out=Array(); foreach($array  as $key=$value) {       if(!In_array($value,$out)){           $out[$key] =$value; }   }   return $out;} 

To remove a two-weight array:

functionA_array_unique ($array)//It 's better written.{   $word=$out=Array(); foreach($array  as $key=$value) {       if(!In_array($value[' word '],$word)){           $out[$key] =$value; $word[$key] =$value[' word ']; }   }   return $out;} 

PHP removes duplicate data from an array