mysqli_stmt_num_rows(3) [php man page]

MYSQLI_STMT_NUM_ROWS(3) 						 1						   MYSQLI_STMT_NUM_ROWS(3)

mysqli_stmt::$num_rows - Return the number of rows in statements result set

       Object oriented style

SYNOPSIS

       int$mysqli_stmt->num_rows ()

DESCRIPTION

       Procedural style
       int mysqli_stmt_num_rows (mysqli_stmt  $stmt)

	Returns   the	number	 of   rows  in	the  result  set.  The	use  of  mysqli_stmt_num_rows(3)  depends  on  whether	or  not  you  used
       mysqli_stmt_store_result(3) to buffer the entire result set in the statement handle.

	If you use mysqli_stmt_store_result(3), mysqli_stmt_num_rows(3) may be called immediately.

PARAMETERS

	      o $
		stmt -Procedural style only: A statement identifier returned by mysqli_stmt_init(3).

RETURN VALUES

	An integer representing the number of rows in result set.

EXAMPLES

       Example #1

	      Object oriented style

	      <?php
	      /* Open a connection */
	      $mysqli = new mysqli("localhost", "my_user", "my_password", "world");

	      /* check connection */
	      if (mysqli_connect_errno()) {
		  printf("Connect failed: %s
", mysqli_connect_error());
		  exit();
	      }

	      $query = "SELECT Name, CountryCode FROM City ORDER BY Name LIMIT 20";
	      if ($stmt = $mysqli->prepare($query)) {

		  /* execute query */
		  $stmt->execute();

		  /* store result */
		  $stmt->store_result();

		  printf("Number of rows: %d.
", $stmt->num_rows);

		  /* close statement */
		  $stmt->close();
	      }

	      /* close connection */
	      $mysqli->close();
	      ?>

       Example #2

	      Procedural style

	      <?php
	      /* Open a connection */
	      $link = mysqli_connect("localhost", "my_user", "my_password", "world");

	      /* check connection */
	      if (mysqli_connect_errno()) {
		  printf("Connect failed: %s
", mysqli_connect_error());
		  exit();
	      }

	      $query = "SELECT Name, CountryCode FROM City ORDER BY Name LIMIT 20";
	      if ($stmt = mysqli_prepare($link, $query)) {

		  /* execute query */
		  mysqli_stmt_execute($stmt);

		  /* store result */
		  mysqli_stmt_store_result($stmt);

		  printf("Number of rows: %d.
", mysqli_stmt_num_rows($stmt));

		  /* close statement */
		  mysqli_stmt_close($stmt);
	      }

	      /* close connection */
	      mysqli_close($link);
	      ?>

	      The above examples will output:

	      Number of rows: 20.

SEE ALSO

       mysqli_stmt_affected_rows(3), mysqli_prepare(3), mysqli_stmt_store_result(3).

PHP Documentation Group 												   MYSQLI_STMT_NUM_ROWS(3)

MYSQLI_STMT_ERRNO(3)							 1						      MYSQLI_STMT_ERRNO(3)

mysqli_stmt::$errno - Returns the error code for the most recent statement call

       Object oriented style

SYNOPSIS

       int$mysqli_stmt->errno ()

DESCRIPTION

       Procedural style
       int mysqli_stmt_errno (mysqli_stmt  $stmt)

	Returns the error code for the most recently invoked statement function that can succeed or fail.

	Client	error  message numbers are listed in the MySQL errmsg.h header file, server error message numbers are listed in mysqld_error.h. In
       the MySQL source distribution you can find a complete list of error messages and error numbers in the file Docs/mysqld_error.txt.

PARAMETERS

	      o $
		stmt -Procedural style only: A statement identifier returned by mysqli_stmt_init(3).

RETURN VALUES

	An error code value. Zero means no error occurred.

EXAMPLES

       Example #1

	      Object oriented style

	      <?php
	      /* Open a connection */
	      $mysqli = new mysqli("localhost", "my_user", "my_password", "world");

	      /* check connection */
	      if (mysqli_connect_errno()) {
		  printf("Connect failed: %s
", mysqli_connect_error());
		  exit();
	      }

	      $mysqli->query("CREATE TABLE myCountry LIKE Country");
	      $mysqli->query("INSERT INTO myCountry SELECT * FROM Country");

	      $query = "SELECT Name, Code FROM myCountry ORDER BY Name";
	      if ($stmt = $mysqli->prepare($query)) {

		  /* drop table */
		  $mysqli->query("DROP TABLE myCountry");

		  /* execute query */
		  $stmt->execute();

		  printf("Error: %d.
", $stmt->errno);

		  /* close statement */
		  $stmt->close();
	      }

	      /* close connection */
	      $mysqli->close();
	      ?>

       Example #2

	      Procedural style

	      <?php
	      /* Open a connection */
	      $link = mysqli_connect("localhost", "my_user", "my_password", "world");

	      /* check connection */
	      if (mysqli_connect_errno()) {
		  printf("Connect failed: %s
", mysqli_connect_error());
		  exit();
	      }

	      mysqli_query($link, "CREATE TABLE myCountry LIKE Country");
	      mysqli_query($link, "INSERT INTO myCountry SELECT * FROM Country");

	      $query = "SELECT Name, Code FROM myCountry ORDER BY Name";
	      if ($stmt = mysqli_prepare($link, $query)) {

		  /* drop table */
		  mysqli_query($link, "DROP TABLE myCountry");

		  /* execute query */
		  mysqli_stmt_execute($stmt);

		  printf("Error: %d.
", mysqli_stmt_errno($stmt));

		  /* close statement */
		  mysqli_stmt_close($stmt);
	      }

	      /* close connection */
	      mysqli_close($link);
	      ?>

	      The above examples will output:

	      Error: 1146.

SEE ALSO

       mysqli_stmt_error(3), mysqli_stmt_sqlstate(3).

PHP Documentation Group 												      MYSQLI_STMT_ERRNO(3)