mysqli_driver::$report_mode()

(PHP 5, PHP 7)

Enables or disables internal report functions

说明

面向对象风格
int $mysqli_driver->report_mode;

过程化风格
mysqli_report(int $flags): bool

A function helpful in improving queries during code development and testing. Depending on the flags, it reports errors from mysqli function calls or queries that don't use an index(or use a bad index).

参数

$flags

Supported 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)

返回值

成功时返回TRUE，或者在失败时返回FALSE。

更新日志

范例

Example #1 面向对象风格

<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
    printf("Connect failed: %s\n", mysqli_connect_error());
    exit();
}
/* activate reporting */
$driver = new mysqli_driver();
$driver->report_mode = MYSQLI_REPORT_ALL;
try {
    /* this query should report an error */
    $result = $mysqli->query("SELECT Name FROM Nonexistingtable WHERE population > 50000");
    /* this query should report a bad index */
    $result = $mysqli->query("SELECT Name FROM City WHERE population > 50000");
    $result->close();
    $mysqli->close();
} catch (mysqli_sql_exception $e) {
    echo $e->__toString();
}
?>

Example #2 过程化风格

<?php
/* activate reporting */
mysqli_report(MYSQLI_REPORT_ALL);
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
    printf("Connect failed: %s\n", mysqli_connect_error());
    exit();
}
/* this query should report an error */
$result = mysqli_query("SELECT Name FROM Nonexistingtable WHERE population > 50000");
/* this query should report a bad index */
$result = mysqli_query("SELECT Name FROM City WHERE population > 50000");
mysqli_free_result($result);
mysqli_close($link);
?>

参见

• mysqli_debug() Performs debugging operations
• mysqli_dump_debug_info() 将调试信息输出到日志
• mysqli_sql_exception
• set_exception_handler()设置用户自定义的异常处理函数
• error_reporting()设置应该报告何种 PHP 错误

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;
?>