mirror of
https://github.com/sigmasternchen/php-doc-en
synced 2025-03-19 18:38:55 +00:00
932bef68d7
Many thanks to Johann :) git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@132642 c90b9560-bf6c-de11-be94-00142212c4b1
64 lines
2.3 KiB
XML
64 lines
2.3 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
|
|
<!-- $Revision: 1.1 $ -->
|
|
<refentry id="function.sqlite-escape-string">
|
|
<refnamediv>
|
|
<refname>sqlite_escape_string</refname>
|
|
<refpurpose>Escapes a string for use as a query parameter</refpurpose>
|
|
</refnamediv>
|
|
<refsect1>
|
|
<title>Description</title>
|
|
<methodsynopsis>
|
|
<type>string</type><methodname>sqlite_escape_string</methodname>
|
|
<methodparam><type>string</type><parameter>item</parameter></methodparam>
|
|
</methodsynopsis>
|
|
<para>
|
|
<function>sqlite_escape_string</function> will correctly quote the string
|
|
specified by <parameter>item</parameter>
|
|
for use in an SQLite SQL statement. This includes doubling up
|
|
single-quote characters (<literal>'</literal>) and checking for
|
|
binary-unsafe characters in the query string.
|
|
</para>
|
|
<para>
|
|
If the <parameter>item</parameter> contains a <literal>NUL</literal>
|
|
character, or if it begins with a character whose ordinal value is
|
|
<literal>0x01</literal>, PHP will apply a binary encoding scheme so that
|
|
you can safely store and retrieve binary data.
|
|
</para>
|
|
<para>
|
|
Although the encoding makes it safe to insert the data, it will render
|
|
simple text comparisions and LIKE clauses in your queries unusable for
|
|
the columns that contain the binary data. In practice, this shouldn't be
|
|
a problem, as your schema should be such that you don't use such things
|
|
on binary columns (in fact, it might be better to store binary data using
|
|
other means, such as in files).
|
|
</para>
|
|
<warning>
|
|
<simpara>
|
|
<function>addslashes</function> should <emphasis>NOT</emphasis> be used
|
|
to quote your strings for SQLite queries; it will lead to strange results when
|
|
retrieving your data.
|
|
</simpara>
|
|
</warning>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
|
|
<!-- Keep this comment at the end of the file
|
|
Local variables:
|
|
mode: sgml
|
|
sgml-omittag:t
|
|
sgml-shorttag:t
|
|
sgml-minimize-attributes:nil
|
|
sgml-always-quote-attributes:t
|
|
sgml-indent-step:1
|
|
sgml-indent-data:t
|
|
sgml-parent-document:nil
|
|
sgml-default-dtd-file:"../../manual.ced"
|
|
sgml-exposed-tags:nil
|
|
sgml-local-catalogs:nil
|
|
sgml-local-ecat-files:nil
|
|
End:
|
|
vim600: syn=xml fen fdm=syntax fdl=2 si
|
|
vim: et tw=78 syn=sgml
|
|
vi: ts=1 sw=1
|
|
-->
|