mysqli_driver::$report_mode

(PHP 5, PHP 7)
Enables or disables internal report functions
bool mysqli_report ( int $flags )

Object oriented style

Procedural style

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).

Parameters:
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)
Returns:

Returns TRUE on success or FALSE on failure.

Changelog:
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.

Examples:
Object oriented style
<?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();
}
?>

Procedural style
<?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);
?>

See also:

mysqli_debug() -

mysqli_dump_debug_info() -

mysqli_sql_exception -

set_exception_handler() -

error_reporting() -

doc_php
2016-02-24 16:19:20
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