Last 5.3 release ever available: PHP 5.3.29 - 5.3 now EOL

mysqli_stmt::$param_count

mysqli_stmt_param_count

(PHP 5)

mysqli_stmt::$param_count -- mysqli_stmt_param_countReturns the number of parameter for the given statement

Descrição

Estilo orientado à objeto

Estilo procedural

int mysqli_stmt_param_count ( mysqli_stmt $stmt )

Returns the number of parameter markers present in the prepared statement.

Parâmetros

stmt

Procedural style only: A statement identifier returned by mysqli_stmt_init().

Valor Retornado

Returns an integer representing the number of parameters.

Exemplos

Exemplo #1 Estilo orientado à objeto

<?php
$mysqli 
= new mysqli("localhost""my_user""my_password""world");

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

if (
$stmt $mysqli->prepare("SELECT Name FROM Country WHERE Name=? OR Code=?")) {

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

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

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

Exemplo #2 Estilo procedural

<?php
$link 
mysqli_connect("localhost""my_user""my_password""world");

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

if (
$stmt mysqli_prepare($link"SELECT Name FROM Country WHERE Name=? OR Code=?")) {

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

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

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

Os exemplos acima irão imprimir:

Statement has 2 markers.

Veja Também

add a note add a note

User Contributed Notes 1 note

up
0
Senthryl
5 years ago
This parameter (and presumably any other parameter in mysqli_stmt) will raise an error with the message "Property access is not allowed yet" if the statement was not prepared properly, or not prepared at all.

To prevent this, always ensure that the return value of the "prepare" statement is true before accessing these properties.
To Top