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mysqli_report

(PHP 5)

mysqli_report -- Enables or disables internal report functions

Description

bool mysqli_report ( int flags )

mysqli_report() is a powerful function to improve your queries and code during development and testing phase. Depending on the flags it reports errors from mysqli function calls or queries which don't use an index (or use a bad index).

表格 1. Supported flags

NameDescription
MYSQLI_REPORT_OFFTurns reporting off
MYSQLI_REPORT_ERRORReport errors from mysqli function calls
MYSQLI_REPORT_INDEXReport if no index or bad index was used in a query
MYSQLI_REPORT_ALLSet all options (report all)

返回值

如果成功则返回 TRUE，失败则返回 FALSE。

参见

mysqli_debug() 和 mysqli_dump_debug_info().

范例

例子 1. Object oriented style

<?php
/* activate reporting */
mysqli_report(MYSQLI_REPORT_ALL);

$mysqli = new mysqli("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 warning */
$result = $mysqli->query("SELECT Name FROM City WHERE population > 50000");
$result->close();

$mysqli->close();
?>


add a note add a note User Contributed Notes
anthony dot parsons at manx dot net
06-Nov-2005 11:23
Be very careful using this function - it's a per-process setting.
If your server is set up to reuse a single PHP process for multiple requests, that means the last setting of this function in any script will affect all other scripts using mysqli.
To be safe always call <? mysqli_report(MYSQLI_REPORT_OFF) ?> at the end of a script. The CGI version of PHP is probably safe from this.

(Tested using PHP 5.0.5, Apache 2 SAPI module)
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