SQLite3::prepare

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

SQLite3::preparePrepares an SQL statement for execution

说明

public SQLite3::prepare ( string $query ) : SQLite3Stmt|false

Prepares an SQL statement for execution and returns an SQLite3Stmt object.

参数

query

The SQL query to prepare.

返回值

Returns an SQLite3Stmt object on success 或者在失败时返回 false.

范例

Example #1 SQLite3::prepare() 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());
?>

参见

User Contributed Notes

Venkata Subbaraju 22-Jan-2016 12:27
Without checking the return value of "prepare" if "exec" is used then it will cause Fatal Error.

"PHP Fatal error:  Call to a member function execute() on a non-object "

To avoid this error,need to check return value as following:

<?php
 $db
= new SQLite3('school.db');
 if(
$stmt = $db->prepare('SELECT id,student_name FROM classTen '))
 {
        
$result = $stmt->execute();
        
$names=array();
         while(
$arr=$result->fetchArray(SQLITE3_ASSOC))
         {
         
$names[$arr['id']]=$arr['student_name'];
         }
}
?>
PHP8中文手册 站长在线 整理 版权归PHP文档组所有