mysqli::$info

mysqli_info

Retrieves information about the most recently executed query

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`string` `mysqli->info`

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`string` `mysqli_info` `mysqli` `link`

The `mysqli_info` function returns a string providing information about the last query executed. The nature of this string is provided below:

## Possible mysqli_info return values

Query type | Example result string
INSERT INTO...SELECT... | Records: 100 Duplicates: 0 Warnings: 0
INSERT INTO...VALUES (...),(...),(...) | Records: 3 Duplicates: 0 Warnings: 0
LOAD DATA INFILE ... | Records: 1 Deleted: 0 Skipped: 0 Warnings: 0
ALTER TABLE ... | Records: 3 Duplicates: 0 Warnings: 0
UPDATE ... | Rows matched: 40 Changed: 40 Warnings: 0

Queries which do not fall into one of the preceding formats are not supported. In these situations, `mysqli_info` will return an empty string.

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A character string representing additional information about the most recently executed query.

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### `$mysqli->info` example

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    <?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();
    }

    $mysqli->query("CREATE TEMPORARY TABLE t1 LIKE City");

    /* INSERT INTO .. SELECT */
    $mysqli->query("INSERT INTO t1 SELECT * FROM City ORDER BY ID LIMIT 150");
    printf("%s\n", $mysqli->info);

    /* close connection */
    $mysqli->close();
    ?>

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    <?php
    $link = mysqli_connect("localhost", "my_user", "my_password", "world");

    /* check connection */
    if (mysqli_connect_errno()) {
        printf("Connect failed: %s\n", mysqli_connect_error());
        exit();
    }

    mysqli_query($link, "CREATE TEMPORARY TABLE t1 LIKE City");

    /* INSERT INTO .. SELECT */
    mysqli_query($link, "INSERT INTO t1 SELECT * FROM City ORDER BY ID LIMIT 150");
    printf("%s\n", mysqli_info($link));

    /* close connection */
    mysqli_close($link);
    ?>

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    Records: 150  Duplicates: 0  Warnings: 0

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- `mysqli_affected_rows`
- `mysqli_warning_count`
- `mysqli_num_rows`