mysqli_driver::$report_mode

mysqli_report

(PHP 5, PHP 7)

mysqli_driver::$report_mode -- mysqli_reportEnables or disables internal report functions

说明

面向对象风格

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

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