Seems not clear but flags *could be combined*, as per other flags.
For example:
<?php
# wannabe noticed about all errors except those about indexes
$driver = new mysqli_driver();
$driver->report_mode = MYSQLI_REPORT_ALL & ~MYSQLI_REPORT_INDEX;
?>
(PHP 5, PHP 7, PHP 8)
mysqli_driver::$report_mode -- mysqli_report — Sets mysqli error reporting mode
面向对象风格
过程化风格
Depending on the flags, it sets mysqli error reporting mode to exception, warning or none.
When set to MYSQLI_REPORT_ALL or MYSQLI_REPORT_INDEX
it will also inform about queries that don't use an index (or use a bad index).
As of PHP 8.1.0, the default setting is MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT.
Previously, it was MYSQLI_REPORT_OFF.
flags
| Name | Description |
|---|---|
MYSQLI_REPORT_OFF |
Turns reporting off |
MYSQLI_REPORT_ERROR |
Report errors from mysqli function calls |
MYSQLI_REPORT_STRICT |
Throw mysqli_sql_exception for errors instead of warnings |
MYSQLI_REPORT_INDEX |
Report if no index or bad index was used in a query |
MYSQLI_REPORT_ALL |
Set all options (report all) |
总是返回 true。
| 版本 | 说明 |
|---|---|
| 8.1.0 |
The default value is now MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT.
Previously, it was MYSQLI_REPORT_OFF.
|
示例 #1 面向对象风格
<?php
/* activate reporting */
$driver = new mysqli_driver();
$driver->report_mode = MYSQLI_REPORT_ALL;
try {
/* if the connection fails, a mysqli_sql_exception will be thrown */
$mysqli = new mysqli("localhost", "my_user", "my_password", "my_db");
/* this query should report an error */
$result = $mysqli->query("SELECT Name FROM Nonexistingtable WHERE population > 50000");
/* this query should report a bad index if the column population doesn't have an index */
$result = $mysqli->query("SELECT Name FROM City WHERE population > 50000");
} catch (mysqli_sql_exception $e) {
error_log($e->__toString());
}示例 #2 过程化风格
<?php
/* activate reporting */
mysqli_report(MYSQLI_REPORT_ALL);
try {
/* if the connection fails, a mysqli_sql_exception will be thrown */
$link = mysqli_connect("localhost", "my_user", "my_password", "my_db");
/* this query should report an error */
$result = mysqli_query($link, "SELECT Name FROM Nonexistingtable WHERE population > 50000");
/* this query should report a bad index if the column population doesn't have an index */
$result = mysqli_query($link, "SELECT Name FROM City WHERE population > 50000");
} catch (mysqli_sql_exception $e) {
error_log($e->__toString());
}示例 #3 Error reporting except bad index errors
<?php
/* activate reporting */
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
try {
/* if the connection fails, a mysqli_sql_exception will be thrown */
$mysqli = new mysqli("localhost", "my_user", "my_password", "my_db");
/* this query should report an error */
$result = $mysqli->query("SELECT Name FROM Nonexistingtable WHERE population > 50000");
/* this WILL NOT report any errors even if index is not available */
$result = $mysqli->query("SELECT Name FROM City WHERE population > 50000");
} catch (mysqli_sql_exception $e) {
error_log($e->__toString());
}
Seems not clear but flags *could be combined*, as per other flags.
For example:
<?php
# wannabe noticed about all errors except those about indexes
$driver = new mysqli_driver();
$driver->report_mode = MYSQLI_REPORT_ALL & ~MYSQLI_REPORT_INDEX;
?>Example #1 will now report a depricated warning:
"The mysqli_driver class is an instance of the monostate pattern, i.e. there is only one driver which can be accessed though an arbitrary amount of mysqli_driver instances."
To set the error mode of the mysql driver do use
<?php
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
?>