can you just use a cron job and mysqlbackup instead? it does what you
want and is already written.
Jon
Mauro Chojrin wrote:
Hi:
I'm developing a db application with php and I have this problem:
I have a script for backup making which is very simple, it just goes
through the entire database creating a file which contains the sql
statements to re create the database. The first thing the script does y
increase the time limit based on a calculation over the total number of
records. Every time I ran the script it would time out. After some time
reviewing the code (First I thought it might be hanging in an infinite loop)
I realized the problem was with a particular big size table. There must be a
way to optimize the code, because when I backup the database through
phpMyAdmin it works just fine, even fast.
This the cycle that's crashing down:
$fields = mysql_list_fields($dPconfig['dbname'], $row[0]);
$columns = mysql_num_fields($fields);
$insertSQL = 'INSERT INTO `'.$row[0].'` VALUES (';
// all data from table
$result = mysql_query('SELECT * FROM '.$row[0]);
while($tablerow = mysql_fetch_array($result))
{
$output .= $insertSQL;
for ($i = 0; $i < $columns; $i++)
{
// remove all enters from the field-string. MySql stamement must be on
one line
$value = str_replace("\r\n",'\n',$tablerow[$i]);
// replace ' by \'
$value = str_replace('\'',"\'",$value);
$output .= '\''.$value.'\',';
}
$output = substr($output,0,-1); // remove last comma
$output .= ');' . "\r\n";
} // while
$output .= "\r\n";
$output .= "\r\n";
}
Thanks!
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