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Dynamic Web Pages : deutschsprachiges PHP-Handbuch : mysqli-stmt-num-rows _

 
   
  _  
 
<mysqli_stmt_init mysqli_stmt_param_count>
Letzte Aktualisierung: Mon, 01 Sep 2014
 

mysqli_stmt_num_rows

(PHP 5)

mysqli_stmt_num_rows

(no version information, might be only in CVS)

stmt->num_rows -- Return the number of rows in statements result set

Description

Procedural style :

int mysqli_stmt_num_rows ( mysqli_stmt stmt )

Object oriented style (property):

class mysqli_stmt {

int num_rows

}

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

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

Rückgabewerte

An integer representing the number of rows in result set.

Beispiele

Beispiel 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\n", 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.\n", $stmt->num_rows);

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

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

Beispiel 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\n", 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.\n", mysqli_stmt_num_rows($stmt));

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

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

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

Number of rows: 20.


<mysqli_stmt_init mysqli_stmt_param_count>
Letzte Aktualisierung: Mon, 01 Sep 2014
 


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