sqlite_exec
SQLiteDatabase->exec
(PHP 5, PECL sqlite >= 1.0.3)
sqlite_exec -- SQLiteDatabase->exec — Executes a result-less query against a given database
说明
bool sqlite_exec ( resource $dbhandle , string $query [, string &$error_msg ] ) bool sqlite_exec ( string $query , resource $dbhandle )Object oriented style (method):
bool SQLiteDatabase::queryExec ( string $query [, string &$error_msg ] )Executes an SQL statement given by the query against a given database handle (specified by the dbhandle parameter).
WarningSQLite will execute multiple queries separated by semicolons, so you can use it to execute a batch of SQL that you have loaded from a file or have embedded in a script.
参数
- dbhandle
-
The SQLite Database resource; returned from sqlite_open() when used procedurally. This parameter is not required when using the object-oriented method.
- query
-
The query to be executed.
Data inside the query should be properly escaped.
- error_msg
-
The specified variable will be filled if an error occurs. This is specially important because SQL syntax errors can't be fetched using the sqlite_last_error() function.
Note: 为兼容其他数据库扩展(比如 MySQL)，支持两种可替代的语法。推荐第一种格式，函数的第一个参数是dbhandle。
返回值
This function will return a boolean result; TRUE for success or FALSE for failure. If you need to run a query that returns rows, see sqlite_query().
由 SQLITE_ASSOC 与 SQLITE_BOTH 返回的列名会依照 sqlite.assoc_case 配置选项的值决定大小写。
更新日志
| 版本 | 说明 |
|---|---|
| 5.1.0 | Added the error_msg parameter |
范例
Example #1 Procedural example
<?php
$dbhandle = sqlite_open('mysqlitedb');
$query = sqlite_exec($dbhandle, "UPDATE users SET email='jDoe@example.com' WHERE username='jDoe'", $error);
if (!$query) {
exit("Error in query: '$error'");
} else {
echo 'Number of rows modified: ', sqlite_changes($dbhandle);
}
?>
Example #2 Object-oriented example
<?php
$dbhandle = new SQLiteDatabase('mysqlitedb');
$query = $dbhandle->queryExec("UPDATE users SET email='jDoe@example.com' WHERE username='jDoe'", $error);
if (!$query) {
exit("Error in query: '$error'");
} else {
echo 'Number of rows modified: ', $dbhandle->changes();
}
?>
参见
- sqlite_query() - Executes a query against a given database and returns a result handle
- sqlite_unbuffered_query() - Execute a query that does not prefetch and buffer all data
- sqlite_array_query() - Execute a query against a given database and returns an array
