02-09-2011
Quote:
Originally Posted by
methyl
@cfajohnson I sort of agree. If you only work in modern "Posix" so called "standard" Shells there is really no need for "[[ condition ]]" syntax because of the enhancements to Shell. I work with new, old and ancient Shell scripts and it is imperative that I can read, understand and change scripts in the context of the Shell of the day.
All the shells which have [[ ... ]] are POSIX shells with extensions (i.e., modern shells) and therefore, as you say, have no need for [[ ... ]] (with the possible exception of testing regexes, which I have never had a need for).
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LEARN ABOUT PHP
mysqli_stmt_affected_rows
MYSQLI_STMT_AFFECTED_ROWS(3) 1 MYSQLI_STMT_AFFECTED_ROWS(3)
mysqli_stmt::$affected_rows - Returns the total number of rows changed, deleted, or inserted by the last executed statement
Object oriented style
SYNOPSIS
int$mysqli_stmt->affected_rows ()
DESCRIPTION
Procedural style
int mysqli_stmt_affected_rows (mysqli_stmt $stmt)
Returns the number of rows affected by INSERT, UPDATE, or DELETE query.
This function only works with queries which update a table. In order to get the number of rows from a SELECT query, use
mysqli_stmt_num_rows(3) instead.
PARAMETERS
o $
stmt -Procedural style only: A statement identifier returned by mysqli_stmt_init(3).
RETURN VALUES
An integer greater than zero indicates the number of rows affected or retrieved. Zero indicates that no records where updated for an
UPDATE/DELETE statement, no rows matched the WHERE clause in the query or that no query has yet been executed. -1 indicates that the query
has returned an error. NULL indicates an invalid argument was supplied to the function.
Note
If the number of affected rows is greater than maximal PHP int value, the number of affected rows will be returned as a string
value.
EXAMPLES
Example #1
Object oriented style
<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s
", mysqli_connect_error());
exit();
}
/* create temp table */
$mysqli->query("CREATE TEMPORARY TABLE myCountry LIKE Country");
$query = "INSERT INTO myCountry SELECT * FROM Country WHERE Code LIKE ?";
/* prepare statement */
if ($stmt = $mysqli->prepare($query)) {
/* Bind variable for placeholder */
$code = 'A%';
$stmt->bind_param("s", $code);
/* execute statement */
$stmt->execute();
printf("rows inserted: %d
", $stmt->affected_rows);
/* close statement */
$stmt->close();
}
/* close connection */
$mysqli->close();
?>
Example #2
Procedural style
<?php
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s
", mysqli_connect_error());
exit();
}
/* create temp table */
mysqli_query($link, "CREATE TEMPORARY TABLE myCountry LIKE Country");
$query = "INSERT INTO myCountry SELECT * FROM Country WHERE Code LIKE ?";
/* prepare statement */
if ($stmt = mysqli_prepare($link, $query)) {
/* Bind variable for placeholder */
$code = 'A%';
mysqli_stmt_bind_param($stmt, "s", $code);
/* execute statement */
mysqli_stmt_execute($stmt);
printf("rows inserted: %d
", mysqli_stmt_affected_rows($stmt));
/* close statement */
mysqli_stmt_close($stmt);
}
/* close connection */
mysqli_close($link);
?>
The above examples will output:
rows inserted: 17
SEE ALSO
mysqli_stmt_num_rows(3), mysqli_prepare(3).
PHP Documentation Group MYSQLI_STMT_AFFECTED_ROWS(3)