SQLite3Stmt::bindValue

(PHP 5 >= 5.3.0)

SQLite3Stmt::bindValueBinds the value of a parameter to a statement variable

Description

public bool SQLite3Stmt::bindValue ( string $sql_param , mixed $value [, int $type ] )

Binds the value of a parameter to a statement variable.

Parameters

sql_param

An string identifying the statement variable to which the value should be bound.

value

The value to bind to a statement variable.

type

The data type of the value to bind.

  • SQLITE3_INTEGER: The value is a signed integer, stored in 1, 2, 3, 4, 6, or 8 bytes depending on the magnitude of the value.

  • SQLITE3_FLOAT: The value is a floating point value, stored as an 8-byte IEEE floating point number.

  • SQLITE3_TEXT: The value is a text string, stored using the database encoding (UTF-8, UTF-16BE or UTF-16-LE).

  • SQLITE3_BLOB: The value is a blob of data, stored exactly as it was input.

  • SQLITE3_NULL: The value is a NULL value.

Return Values

Returns TRUE if the value is bound to the statement variable, FALSE on failure.

Examples

Example #1 SQLite3Stmt::bindValue() example

<?php
unlink
('mysqlitedb.db');
$db = new SQLite3('mysqlitedb.db');

$db->exec('CREATE TABLE foo (id INTEGER, bar STRING)');
$db->exec("INSERT INTO foo (id, bar) VALUES (1, 'This is a test')");

$stmt $db->prepare('SELECT bar FROM foo WHERE id=:id');
$stmt->bindValue(':id'1SQLITE3_INTEGER);

$result $stmt->execute();
var_dump($result->fetchArray());
?>

Коментарии

Note that this also works with positional placeholders using the '?' token:

<?php

$stmt 
$db->prepare('SELECT * FROM mytable WHERE foo = ? AND bar = ?');
$stmt->bindValue(1'somestring'SQLITE3_TEXT);
$stmt->bindValue(242SQLITE3_INTEGER);

?>

Positional numbering starts at 1.
2010-07-23 22:54:36
http://php5.kiev.ua/manual/ru/sqlite3stmt.bindvalue.html
Автор:
It might be a good idea to feed bindValue the type of the variable manually, or you might encounter weird stuff as the passed value is often treated as SQLITE3_TEXT and results in buggy queries.

For example:
<?php
$st 
$db->prepare('SELECT * FROM test WHERE (a+1) = ?');
$st->bindValue(12);
?>

Will never return any result as it is treated by SQLite as if the query was 'SELECT * FROM test WHERE (a+1) = "2"'. Instead you have to set the type manually:

<?php
$st 
$db->prepare('SELECT * FROM test WHERE (a+1) = ?');
$st->bindValue(12\SQLITE3_INTEGER);
?>

And it will work. This bug is reported in https://bugs.php.net/bug.php?id=68849

Here is a simple function to help you make bindValue work correctly:

<?php
function getArgType($arg)
{
    switch (
gettype($arg))
    {
        case 
'double': return SQLITE3_FLOAT;
        case 
'integer': return SQLITE3_INTEGER;
        case 
'boolean': return SQLITE3_INTEGER;
        case 
'NULL': return SQLITE3_NULL;
        case 
'string': return SQLITE3_TEXT;
        default:
            throw new 
\InvalidArgumentException('Argument is of invalid type '.gettype($arg));
    }
}
?>
2015-01-18 06:49:10
http://php5.kiev.ua/manual/ru/sqlite3stmt.bindvalue.html
I just want to say again, 

Numbering for parameters starts at ONE!

This has caught me out quite a few times!
2015-07-06 16:41:41
http://php5.kiev.ua/manual/ru/sqlite3stmt.bindvalue.html
I used following logic to prepare statements, It handles both Values and Arrays ( taking help from bohwaz note) :

<?php
   
function getArgType($arg) {
        switch (
gettype($arg)) {
            case 
'double':  return SQLITE3_FLOAT;
            case 
'integer': return SQLITE3_INTEGER;
            case 
'boolean': return SQLITE3_INTEGER;
            case 
'NULL':    return SQLITE3_NULL;
            case 
'string':  return SQLITE3_TEXT;
            default:
                throw new 
\InvalidArgumentException('Argument is of invalid type '.gettype($arg));
        }
    }

foreach (
$params as $index => $val) {
               
// indexing start from 1 in Sqlite statement
               
if (is_array($val)) {
                   
$ok $stmt->bindParam($index 1$val);
                } else {
                   
$ok $stmt->bindValue($index 1$valgetArgType($val));
                }
               
                if (!
$ok) {
                    throw new 
Exception("Unable to bind param: $val");
                }
            }
?>
2016-04-13 03:42:25
http://php5.kiev.ua/manual/ru/sqlite3stmt.bindvalue.html

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