International PHP Conference 2019 - Spring Edition

SQLite3::enableExceptions

(PHP 5 >= 5.3.0, PHP 7)

SQLite3::enableExceptions Enable throwing exceptions

说明

bool SQLite3::enableExceptions ([ bool $enableExceptions = FALSE ] )

Controls whether the SQLite3 instance will throw exceptions or warnings on error.

参数

enable

When TRUE, the SQLite3 instance, and SQLite3Stmt and SQLite3Result instances derived from it, will throw exceptions on error.

When FALSE, the SQLite3 instance, and SQLite3Stmt and SQLite3Result instances derived from it, will raise warnings on error.

For either mode, the error code and message, if any, will be available via SQLite3::lastErrorCode() and SQLite3::lastErrorMsg() respectively.

返回值

Returns the old value; TRUE if exceptions were enabled, FALSE otherwise.

范例

Example #1 SQLite3::enableExceptions() example

<?php
$sqlite 
= new SQLite3(':memory:');
try {
    
$sqlite->exec('create table foo');
    
$sqlite->enableExceptions(true);
    
$sqlite->exec('create table bar');
} catch (
Exception $e) {
    echo 
'Caught exception: ' $e->getMessage();
}
?>

以上例程的输出类似于:

Warning: SQLite3::exec(): near "foo": syntax error in example.php on line 4
Caught exception: near "bar": syntax error
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