PHP - Manual: SQLite3Stmt::getSQL
2024-12-20
(PHP 7 >= 7.4.0, PHP 8)
SQLite3Stmt::getSQL — Get the SQL of the statement
$expand
= false
): string|false
Retrieves the SQL of the prepared statement. If expand
is false
, the unmodified SQL is retrieved. If expand
is true
, all query parameters are replaced with their bound values, or with
an SQL NULL
, if not already bound.
expand
Whether to retrieve the expanded SQL. Passing true
is only supported as
of libsqlite 3.14.
Returns the SQL of the prepared statement, 或者在失败时返回 false
.
If expand
is true
, but the libsqlite version is less
than 3.14, an error of level E_WARNING
or an Exception
is issued, according to SQLite3::enableExceptions().
示例 #1 Inspecting the expanded SQL
<?php
$db = new SQLite3(':memory:');
$stmt = $db->prepare("SELECT :a, ?, :c");
$stmt->bindValue(':a', 'foo');
$answer = 42;
$stmt->bindParam(2, $answer);
var_dump($stmt->getSQL(true));
?>
以上例程的输出类似于:
string(24) "SELECT 'foo', '42', NULL"