MaxDB
PHP Manual

maxdb_stmt_param_count

stmt->param_count

(No version information available, might be only in CVS)

stmt->param_count — Returns the number of parameter for the given statement

说明

Procedural style:

int maxdb_stmt_param_count ( resource $stmt )

Object oriented style (property):

stmt
int$param_count;

maxdb_stmt_param_count() returns the number of parameter markers present in the prepared statement.

返回值

returns an integer representing the number of parameters.

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();
}

if (
$stmt $maxdb->prepare("SELECT name FROM hotel.city WHERE name=? OR state=?")) {

   
$marker $stmt->param_count;
   
printf("Statement has %d markers.\n"$marker);

   
/* 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();
}

if (
$stmt maxdb_prepare($link"SELECT name FROM hotel.city WHERE name=? OR state=?")) {

   
$marker maxdb_stmt_param_count($stmt);
   
printf("Statement has %d markers.\n"$marker);

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

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

The above examples would produce the following output:

Statement has 2 markers.

参见


MaxDB
PHP Manual