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MaxDB
PHP Manual

maxdb_stmt_affected_rows

maxdb_stmt->affected_rows

(PECL maxdb:1.0-7.6.00.38)

maxdb_stmt->affected_rows — Returns the total number of rows changed, deleted, or inserted by the last executed statement

说明

Procedural style :

int maxdb_stmt_affected_rows ( resource $stmt )

Object oriented style (property):

stmt
int$affected_rows;

maxdb_stmt_affected_rows() returns the number of rows affected by INSERT, UPDATE, or DELETE query. If the last query was invalid or the number of rows can not determined, this function will return -1.

返回值

An integer greater than zero indicates the number of rows affected or retrieved. Zero indicates that no records where updated for an UPDATE/DELETE statement, no rows matched the WHERE clause in the query or that no query has yet been executed. -1 indicates that the query has returned an error or the number of rows can not determined.

范例

Example#1 Object oriented style

<?php
$maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");

/* check connection */
if (maxdb_connect_errno()) {
   printf("Connect failed: %s\n", maxdb_connect_error());
   exit();
}

/* create temp table */
$maxdb->query("CREATE TABLE temp.mycity LIKE hotel.city");

$query = "INSERT INTO temp.mycity SELECT * FROM hotel.city WHERE state LIKE ?";

/* prepare statement */
if ($stmt = $maxdb->prepare($query)) {

   /* Bind variable for placeholder */
   $code = 'N%';
   $stmt->bind_param("s", $code);

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

   printf("rows inserted: %d\n", $stmt->affected_rows);

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

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

Example#2 Procedural style

<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");

/* check connection */
if (maxdb_connect_errno()) {
   printf("Connect failed: %s\n", maxdb_connect_error());
   exit();
}

/* create temp table */
maxdb_query($link, "CREATE TABLE temp.mycity LIKE hotel.city");

$query = "INSERT INTO temp.mycity SELECT * FROM hotel.city WHERE state LIKE ?";

/* prepare statement */
if ($stmt = maxdb_prepare($link, $query)) {

   /* Bind variable for placeholder */
   $code = 'N%';
   maxdb_stmt_bind_param($stmt, "s", $code);

   /* execute statement */
   maxdb_stmt_execute($stmt);

   printf("rows inserted: %d\n", maxdb_stmt_affected_rows($stmt));

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

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

The above examples would produce the following output: 

rows inserted: 4

参见

MaxDB
PHP Manual