(PECL maxdb >= 1.0)
maxdb_real_escape_string -- maxdb::real_escape_string — Escapes special characters in a string for use in an SQL statement, taking into account the current charset of the connection
Estilo por procedimientos
$link
, string $escapestr
) : stringEstilo orientado a objetos
$escapestr
) : stringThis function is used to create a legal SQL string that you can use in an SQL statement. The string escapestr is encoded to an escaped SQL string, taking into account the current character set of the connection.
Characters encoded are ', ".
Returns an escaped string.
Ejemplo #1 Estilo orientado a objetos
<?php
$maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
$maxdb->query("CREATE TABLE temp.mycity LIKE hotel.city");
$city = "'s Hertogenbosch";
/* this query will fail, cause we didn't escape $city */
if (!$maxdb->query("INSERT into temp.mycity VALUES ('11111','$city','NY')")) {
printf("Error: %s\n", $maxdb->sqlstate);
}
$city = $maxdb->real_escape_string($city);
/* this query with escaped $city will work */
if ($maxdb->query("INSERT into temp.mycity VALUES ('22222','$city','NY')")) {
printf("%d Row inserted.\n", $maxdb->affected_rows);
}
$maxdb->close();
?>
Ejemplo #2 Estilo por procedimientos
<?php
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");
/* check connection */
if (maxdb_connect_errno()) {
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
maxdb_query($link, "CREATE TABLE temp.mycity LIKE hotel.city");
$city = "'s Hertogenbosch";
/* this query will fail, cause we didn't escape $city */
if (!maxdb_query($link, "INSERT into temp.mycity VALUES ('11111','$city','NY')")) {
printf("Error: %s\n", maxdb_sqlstate($link));
}
$city = maxdb_real_escape_string($link, $city);
/* this query with escaped $city will work */
if (maxdb_query($link, "INSERT into temp.mycity VALUES ('22222','$city','NY')")) {
printf("%d Row inserted.\n", maxdb_affected_rows($link));
}
maxdb_close($link);
?>
El resultado del ejemplo sería algo similar a:
Warning: maxdb_query(): -5016 POS(43) Missing delimiter: ) <...> Error: 42000 1 Row inserted.