mysqli_driver::$report_mode
(PHP 5, PHP 7)
mysqli_driver :: $ report_mode - mysqli_report - 启用或禁用内部报告功能
描述
面向对象的风格
int $mysqli_driver->report_mode ;
程序风格
bool mysqli_report ( int $flags )一个函数有助于在代码开发和测试期间改进查询。根据标志，它会报告来自mysqli函数调用的错误或不使用索引的查询（或使用错误的索引）。
参数
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
TRUE成功或FALSE失败时返回。
更新日志
Version | Description |
|---|---|
5.3.4 | Changing the reporting mode is now be per-request, rather than per-process. |
5.2.15 | Changing the reporting mode is now be per-request, rather than per-process. |
例子
Example＃1 面向对象的风格
<?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();
}
?>示例＃2 程序风格
<?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);
?>也可以看看
- mysqli_debug（） - 执行调试操作
- mysqli_dump_debug_info（） - 将调试信息转储到日志中
- mysqli_sql_exception
- set_exception_handler（） - 设置用户定义的异常处理函数
- error_reporting（） - 设置报告哪些 PHP 错误
← mysqli_driver::embedded_server_start
mysqli_warning →
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