PHP mysqli more_results() Functie
Voorbeeld - Objectgeoriënteerde stijl
Voer meerdere query's uit op de database:
<?php
$mysqli = new mysqli("localhost","my_user","my_password","my_db");
if ($mysqli -> connect_errno) {
echo "Failed to connect to MySQL: " . $mysqli -> connect_error;
exit();
}
$sql = "SELECT Lastname FROM Persons ORDER BY LastName;";
$sql .= "SELECT Country FROM Customers";
// Execute multi query
if ($mysqli
-> multi_query($sql)) {
do {
// Store first result set
if ($result =
$mysqli -> store_result()) {
while ($row =
$result -> fetch_row()) {
printf("%s\n", $row[0]);
}
$result
-> free_result();
}
// if there are more result-sets, the print a
divider
if ($mysqli -> more_results()) {
printf("-------------\n");
}
//Prepare next result set
} while ($mysqli
-> next_result());
}
$mysqli -> close();
?>
Kijk naar voorbeeld van procedurele stijl onderaan.
Definitie en gebruik
De functie more_results() / mysqli_more_results() controleert of er nog meer queryresultaten zijn van een meervoudige query.
Syntaxis
Objectgeoriënteerde stijl:
$mysqli ->
more_results()
Procedurele stijl:
mysqli_more_results(connection)
Parameterwaarden
Parameter | Description |
---|---|
connection | Required. Specifies the MySQL connection to use |
Technische details
Winstwaarde: | TRUE als er een of meer resultaatsets beschikbaar zijn van multi_query() . ONWAAR anders |
---|---|
PHP-versie: | 5+ |
Voorbeeld - Procedurele stijl
Voer meerdere query's uit op de database:
<?php
$con = mysqli_connect("localhost","my_user","my_password","my_db");
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
exit();
}
$sql = "SELECT Lastname FROM Persons ORDER BY LastName;";
$sql .= "SELECT Country FROM Customers";
// Execute multi query
if (mysqli_multi_query($con, $sql)) {
do {
// Store first result set
if ($result = mysqli_store_result($con)) {
while ($row = mysqli_fetch_row($result)) {
printf("%s\n", $row[0]);
}
mysqli_free_result($result);
}
// if there are more result-sets, the print a
divider
if (mysqli_more_results($con)) {
printf("-------------\n");
}
//Prepare next result set
} while (mysqli_next_result($con));
}
mysqli_close($con);
?>
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