The reason this function doesn't escape double quotes is because double quotes are used with names (the equivalent of backticks in MySQL), as in table or column names, while single quotes are used for values.
This is important to remember, especially coming from another SQL implementation. It can cause strange problems, for example, the query:
SELECT * FROM table WHERE column1="column1"
Would actually return every record, because column1 is always equal to column1. This should instead be:
SELECT * FROM table WHERE column1='column1'
Double quotes are not escaped by the function because they are not interpreted specially within single quoted strings.
SQLite3::escapeString
(PHP 5 >= 5.3.0, PHP 7, PHP 8)
SQLite3::escapeString — Returns a string that has been properly escaped
Descrição
Returns a string that has been properly escaped for safe inclusion in an SQL statement.
Aviso
Esta função (ainda) não é compatível com dados binários!
To properly handle BLOB fields which may contain NUL characters, use SQLite3Stmt::bindParam() instead.
Parâmetros
-
string -
The string to be escaped.
Valor Retornado
Returns a properly escaped string that may be used safely in an SQL statement.
Notas
Aviso
addslashes() should NOT be used to quote your strings for SQLite queries; it will lead to strange results when retrieving your data.
add a note
User Contributed Notes 2 notes
alec at alecnewman dot com ¶
14 years ago
nhl261 at yahoo dot com ¶
10 years ago
Be careful if the string contains "\0" char.
see: https://bugs.php.net/bug.php?id=63419
