diff --git a/reference/mysqli/mysqli/insert-id.xml b/reference/mysqli/mysqli/insert-id.xml index 97eb53b38b..fd5e5ec232 100644 --- a/reference/mysqli/mysqli/insert-id.xml +++ b/reference/mysqli/mysqli/insert-id.xml @@ -4,7 +4,7 @@ mysqli::$insert_id mysqli_insert_id - Returns the auto generated id used in the latest query + Returns the value generated for an AUTO_INCREMENT column by the last query @@ -17,19 +17,25 @@ mysqlimysql - The mysqli_insert_id function returns the ID generated - by a query (usually INSERT) on a table with a column having the - AUTO_INCREMENT attribute. If no INSERT or UPDATE statements were sent via this -connection, or if the modified table does not have a column - with the AUTO_INCREMENT attribute, this function will return zero. + Returns the ID generated by an INSERT or + UPDATE query on a table with a column having the + AUTO_INCREMENT attribute. In the case of a multiple-row + INSERT statement, it returns the first automatically + generated value that was successfully inserted. + + + Performing an INSERT or UPDATE + statement using the LAST_INSERT_ID() + MySQL function will also modify the value returned by mysqli_insert_id. + If LAST_INSERT_ID(expr) was used to generate the value of + AUTO_INCREMENT, it returns the value of the last expr + instead of the generated AUTO_INCREMENT value. + + + Returns 0 if the previous statement did not change an + AUTO_INCREMENT value. mysqli_insert_id must be + called immediately after the statement that generated the value. - - - Performing an INSERT or UPDATE statement using the LAST_INSERT_ID() - function will also modify the value returned by the - mysqli_insert_id function. - - @@ -49,10 +55,14 @@ connection, or if the modified table does not have a column connection or if the query did not update an AUTO_INCREMENT value. + + Only statements issued using the current connection affect the return value. The + value is not affected by statements issued using other connections or clients. + - If the number is greater than maximal int value, mysqli_insert_id - will return a string. + If the number is greater than the maximum int value, it will be returned as + a string. @@ -65,60 +75,44 @@ connection, or if the modified table does not have a column query("CREATE TABLE myCity LIKE City"); $query = "INSERT INTO myCity VALUES (NULL, 'Stuttgart', 'DEU', 'Stuttgart', 617000)"; $mysqli->query($query); -printf ("New Record has id %d.\n", $mysqli->insert_id); +printf("New record has ID %d.\n", $mysqli->insert_id); /* drop table */ $mysqli->query("DROP TABLE myCity"); - -/* close connection */ -$mysqli->close(); -?> ]]> &style.procedural; ]]> &examples.outputs;