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PHP Quiz PHP CertificatePHP mysql_affected_rows() Function
Complete PHP MySQL Reference
Definition and Usage
The mysql_affected_rows() function returns the number of affected rows in the previous MySQL operation.
This function returns the number of affected rows on success, or -1 if the last operation failed.
Syntax
mysql_affected_rows(connection)
| Parameter | Description |
|---|---|
| connection | Optional. Specifies the MySQL connection. If not specified, the last connection opened by mysql_connect() or mysql_pconnect() is used. |
Example
<?php
$con = mysql_connect("localhost","mysql_user","mysql_pwd");
if (!$con)
{
die("Could not connect: " . mysql_error());
}
mysql_select_db("mydb");
mysql_query("DELETE FROM mytable WHERE id < 5");
$rc = mysql_affected_rows();
echo "Records deleted: " . $rc;
mysql_close($con);
?>
$con = mysql_connect("localhost","mysql_user","mysql_pwd");
if (!$con)
{
die("Could not connect: " . mysql_error());
}
mysql_select_db("mydb");
mysql_query("DELETE FROM mytable WHERE id < 5");
$rc = mysql_affected_rows();
echo "Records deleted: " . $rc;
mysql_close($con);
?>
The output of the code above could be:
Records deleted: 4
Complete PHP MySQL Reference
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