Even if we mimic the mysqli_multi_query in the mysql driver used in FA 2.3.x, it is still very slow when the equivalent function below is used:
function multiQuery($queryBlock, $delimiter = ';') {
$inString = false;
$escChar = false;
$sql = '';
$stringChar = '';
$queryLine = array();
$sqlRows = explode ( "\n", $queryBlock );
$delimiterLen = strlen ( $delimiter );
do {
$sqlRow = current ( $sqlRows ) . "\n";
$sqlRowLen = strlen ( $sqlRow );
for ( $i = 0; $i < $sqlRowLen; $i ) {
if ( ( substr ( ltrim ( $sqlRow ), $i, 2 ) === '--' || substr ( ltrim ( $sqlRow ), $i, 1 ) === '#' ) && !$inString ) {
break;
}
$znak = substr ( $sqlRow, $i, 1 );
if ( $znak === '\'' || $znak === '"' ) {
if ( $inString ) {
if ( !$escChar && $znak === $stringChar ) {
$inString = false;
}
}
else {
$stringChar = $znak;
$inString = true;
}
}
if ( $znak === '\\' && substr ( $sqlRow, $i - 1, 2 ) !== '\\\\' ) {
$escChar = !$escChar;
}
else {
$escChar = false;
}
if ( substr ( $sqlRow, $i, $delimiterLen ) === $delimiter ) {
if ( !$inString ) {
$sql = trim ( $sql );
$delimiterMatch = array();
if ( preg_match ( '/^DELIMITER[[:space:]]*([^[:space:]] )$/i', $sql, $delimiterMatch ) ) {
$delimiter = $delimiterMatch [1];
$delimiterLen = strlen ( $delimiter );
}
else {
$queryLine [] = $sql;
}
$sql = '';
continue;
}
}
$sql .= $znak;
}
} while ( next( $sqlRows ) !== false );
return $queryLine;
}It's usage will be:
$multiple_queries = 'SELECT CURRENT_USER();
SELECT Name FROM City ORDER BY ID LIMIT 20, 5;';
$sql_queries = multiQuery($multiple_queries);
foreach($sql_queries as $sql_query) {
// Execute each query
mysql_query($sql_query) or exit('SQL: '.$sql_query.', Error: '.mysql_error());
}