get-warnings
mysqli::get_warnings
mysqli_get_warnings
Get result of SHOW WARNINGS
ENTITY
ENTITY
public
mysqli_warning
false
mysqli::get_warnings
ENTITY
mysqli_warning
false
mysqli_get_warnings
mysqli
mysql
Returns a singly linked list comprised of mysqli_warning or ENTITY if there are no warnings. Each object in the list corresponds to a single line from the result of SHOW WARNINGS. Calling mysqli_warning::next will refill the object with the values from the next row.
[!NOTE] To retrieve warning messages, it is recommended to use the SQL command
SHOW WARNINGS [limit row_count]instead of this function.
[!WARNING] The linked list cannot be rewound or retrieved again.
ENTITY
ENTITY
Returns a singly linked list comprised of mysqli_warning or ENTITY if there are no warnings.
ENTITY
Traversing the linked list to fetch all warnings
ENTITY
<?php
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
$mysqli->query("SELECT 1/0, CAST('NULL' AS UNSIGNED)");
if ($mysqli->warning_count > 0) {
$warning = $mysqli->get_warnings();
if ($warning !== false) {
do {
printf("Error number: %s\n", $warning->errno);
printf("Message: %s\n", $warning->message);
} while ($warning->next());
}
}
ENTITY
<?php
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$link = mysqli_connect("localhost", "user", "password", "test");
mysqli_query($link, "SELECT 1/0, CAST('NULL' AS UNSIGNED)");
if (mysqli_warning_count($link) > 0) {
$warning = mysqli_get_warnings($link);
if ($warning !== false) {
do {
printf("Error number: %s\n", $warning->errno);
printf("Message: %s\n", $warning->message);
} while ($warning->next());
}
}
ENTITY
Error number: 1365
Message: Division by 0
Error number: 1292
Message: Truncated incorrect INTEGER value: 'NULL'
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