Might save someone some time...
<?php
$prototype='Rows matched: 0 Changed: 1 Warnings: 2';
list($matched, $changed, $warnings) = sscanf($prototype, "Rows matched: %d Changed: %d Warnings: %d");
?>
(PHP 5, PHP 7, PHP 8)
mysqli::$info -- mysqli_info — Obtiene la información de la última consulta ejecutada
Estilo orientado a objetos
Estilo por procedimientos
La función mysqli_info() devuelve una cadena facilitando información sobre la última consulta ejecutada. La naturaleza de esta cadena está indicada abajo:
| Tipo de consulta | Ejemplo de cadena devuelta |
|---|---|
| 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 |
Nota:
Las consultas que no estén incluidas en uno de los formatos anteriores no están soportadas. En estas situaciones, mysqli_info() devolverá una cadena vacía.
linkSólo estilo por procediminetos: Un identificador de enlace devuelto por mysqli_connect() o mysqli_init()
Una cadena de caracteres representando información adicional sobre la última consulta ejecutrada.
Ejemplo #1 Ejemplo de $mysqli->info
Estilo orientado a objetos
<?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();
?>Estilo por procedimientos
<?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);
?>El resultado de los ejemplos sería:
Records: 150 Duplicates: 0 Warnings: 0
Might save someone some time...
<?php
$prototype='Rows matched: 0 Changed: 1 Warnings: 2';
list($matched, $changed, $warnings) = sscanf($prototype, "Rows matched: %d Changed: %d Warnings: %d");
?>I don't recall where I got this, but it is SUPER important information and I cannot believe it is missing from the documentation!
If you do a mysqli_info()/$mysqli->info() after a "INSERT INTO ... VALUES ()" that adds/updates JUST ONE ROW, then, mysqli::info() returns an empty result (!!!).
If it is empty (null on php 8+; in php 7 I don't know in which way it is empty) check $mysqli->affectedRows() or mysqli_affected_rows(). If that returns 2, the INSERT did a successful UPDATE of ONE record (so there must have been a ON DUPLICATE KEY UPDATE). If it returns 1: there was an INSERT of ONE record.
This is not a bug, this is BY DESIGN, although it does remind me strongly of "This is not a bug, this is a feature" Microsoft of the 90's. I have no clue why you would design it this way except for some weird and extremely old backward compatibility issues.If inserted just one row, mysqli_info() returns empty string which might be confusing, but mysqli_affected_rows() returns 1 in this case.