Php+mysql to count the number of records in each table in the library and to sort them in descending order

The example in this article describes the method by which Php+mysql counts the number of records in each table in the library and in descending order. Share to everyone for your reference, as follows:

This is a simple code that implements the ability to count the number of records in each table in the database, and to sort in descending order

$host = ' 127.0.0.1 '; $port = 3306; $dbname = ' Test '; $username = ' root '; $password = '; function ee ($p) {if (Php_sapi = = ' CLI ')  {echo "\ n"); }else{echo "
";  } print_r ($p);  if (Php_sapi = = ' cli ') {echo "\ n"; }else{echo "
"; }} $dsn = "mysql:host={$host};p ort={$port};d bname={$dbname}"; $opts = Array (pdo::attr_errmode=>pdo::errmode_ EXCEPTION, pdo::attr_autocommit=>0); try {$pdo = new PDO ($DSN, $username, $password, $opts);} catch (Pdoexception $e) {echo $e->getmessage ();}  Query result function query ($sql) {global $pdo;  $stmt = $pdo->query ($sql);  $data = $stmt->fetchall (pdo::fetch_both); return $data;}  No query result function execute ($sql) {global $pdo;  $affect _rows = $pdo->query ($sql); Return $affect _rows;//affects the number of bars} $tables = Query ("Show Tables"), $sort _data = Array (), foreach ($tables as $table) {//table record bars $coun  T_sql = "SELECT count (*) as num from {$table [0]}";  $stmt = $pdo->query ($count _sql);  $info = $stmt->fetch (pdo::fetch_both);  $pad _table = str_pad ($table [0], 25, ');  $sort _data[] = array (' table ' = = $pad _table, ' num ' = $info [' num ']); $sort _index[] = $info [' num '];} Array_multisort ($sort _index, Sort_desc, $sort _data), foreach ($sort _data as $val) {$row _str = <<
   
     
     
 
 
     
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