Simple removal of text duplication_PHP tutorial

error_reporting(0);

echo"n"."Enter the files to be sorted:"."n";

$dic=trim(fgets(STDIN));

$file=file($dic);

$array=preg_replace('/($s*$)|(^s*^)/m','',$file); //Eliminate blank lines

$new_array=array_values(array_unique($array));//Eliminate duplicate rows

$new_filename="new_". basename($dic); www.2cto.com

if(file_put_contents("$new_filename",join("rn",$new_array))){

echo"------------------------------------------------"."rn";

           echo "n"."Removal of duplicates completed!"."rn" ;

echo "The file after removing duplicates is: "."rn";

echo dirname(__FILE__).DIRECTORY_SEPARATOR."$new_filename"."rn";

echo"------------------------------------------------"."rn";

}

else{

echo"------------------------------------------------"."rn";

echo "Error!"."rn";

echo "File not found! Please check if the input path exists!"."rn";

echo"------------------------------------------------"."rn";

exit();

}

?>

Excerpted from http://hi.baidu.com/nginxshel

http://www.bkjia.com/PHPjc/478473.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/478473.htmlTechArticle?php error_reporting(0); echon. Enter the file to be sorted:.n; $dic=trim(fgets (STDIN)); $file=file($dic); $array=preg_replace(/($s*$)|(^s*^)/m,,$file); //Eliminate blank lines $new_array=a ...