PDO::quote

Beschreibung

PDO::quote() places quotes around the input string and escapes and single quotes within the input string, using a quoting style appropriate to the underlying driver.

If you're using this function to build SQL, it is recommended that you using prepared statements and bound parameters instead, as it is not only more convenient, but often much faster.

Not all PDO drivers implement this method (notably PDO_ODBC). Consider using prepared statements instead.

Parameter Liste

Rückgabewerte

Returns a quoted string that is theoretically safe to pass into an SQL statement. Returns FALSE if the driver does not support quoting in this way.

Beispiele

Beispiel 1. Quoting a normal string <?php $conn = new PDO('sqlite:/home/lynn/music.sql3'); /* Simple string */ $string = 'Nice'; print "Unquoted string: $string\n"; print "Quoted string: " . $conn->quote($string) . "\n"; ?> Das oben gezeigte Beispiel erzeugt folgende Ausgabe: Unquoted string: Nice Quoted string: 'Nice'

Beispiel 2. Quoting a dangerous string <?php $conn = new PDO('sqlite:/home/lynn/music.sql3'); /* Dangerous string */ $string = 'Naughty \' string'; print "Unquoted string: $string\n"; print "Quoted string:" . $conn->quote($string) . "\n"; ?> Das oben gezeigte Beispiel erzeugt folgende Ausgabe: Unquoted string: Naughty ' string Quoted string: 'Naughty '' string'

Beispiel 3. Quoting a complex string <?php $conn = new PDO('sqlite:/home/lynn/music.sql3'); /* Complex string */ $string = "Co'mpl''ex \"st'\"ring"; print "Unquoted string: $string\n"; print "Quoted string: " . $conn->quote($string) . "\n"; ?> Das oben gezeigte Beispiel erzeugt folgende Ausgabe: Unquoted string: Co'mpl''ex "st'"ring Quoted string: 'Co''mpl''''ex "st''"ring'

Siehe auch