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sqlite_exec> <sqlite_error_string
Last updated: Fri, 26 Sep 2008

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sqlite_escape_string

(PHP 5, PECL sqlite:1.0-1.0.3)

sqlite_escape_stringEscapes a string for use as a query parameter

Description

string sqlite_escape_string ( string $item )

sqlite_escape_string() will correctly quote the string specified by item for use in an SQLite SQL statement. This includes doubling up single-quote characters (') and checking for binary-unsafe characters in the query string.

Although the encoding makes it safe to insert the data, it will render simple text comparisons 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).

Parameters

item

The string being quoted.

If the item contains a NUL character, or if it begins with a character whose ordinal value is 0x01, PHP will apply a binary encoding scheme so that you can safely store and retrieve binary data.

Return Values

Returns an escaped string for use in an SQLite SQL statement.

Notes

Note: Do not use this function to encode the return values from UDF's created using sqlite_create_function() or sqlite_create_aggregate() - use sqlite_udf_encode_binary() instead.

Warning

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 add a note User Contributed Notes
sqlite_escape_string
soletan at toxa dot de
29-Mar-2005 02:19
@minots: simplify what you are doing:

<?php

function sqlite_escape_array( &$arr ) {

 
$invalid = array( 'argv', 'argc' );

  foreach (
$arr as $key => $val )
     if ( (
strtoupper( $key ) != $key ) && !is_numeric( $key ) && !in_array( $key, $invalid ) ) {
       if (
is_string( $val ) )
          
$arr[$key] = sqlite_escape_string( $val );
       else if (
is_array( $val ) )
          
sqlite_escape_array( $arr[$key] );
     }

  return
$arr;
}

?>

I'm not sure if the condition is equivalent to yours, but this excludes any numeric key, any completely uppercase'd keys and some selected (argc and argv) special keys. In case of never passing $GLOBALS or $_SERVER as argument one might shorten everything to this as a "pipelined" version:

<?php

function sqlite_escape_array( $arr ) {

  foreach (
$arr as $key => $val )

    if (
is_string( $val ) )
     
$arr[$key] = sqlite_escape_string( $val );

    else if (
is_array( $val ) )
     
$arr[$key] = sqlite_escape_array( $val );

  return
$arr;

}

?>

PHP's syntax is more powerful than those of many other languages, even when it's supporting their one's as well.
Minots Estichá <minots at D0X dot de>
29-Mar-2004 11:03
sometimes i you have to escape an array instead of a string.
my function to do it works like:
array sqlite_escape_array ( &array string)

<?php
function sqlite_escape_array(&$arr)
{
  while ( list(
$key, $val) = each($arr) ):
    if ( (
strtoupper($key)!=$key OR "".intval($key) == "$key") && $key!="argc" and $key!="argv"):
        if (
is_string($val)):
           
$arr[$key]=sqlite_escape_string($val);
        endif;
        if (
is_array($val)):
           
$arr[$key]=sqlite_escape_array($val);
        endif;
    endif;
  endwhile;
  return
$arr;
}
?>

sqlite_exec> <sqlite_error_string
Last updated: Fri, 26 Sep 2008
 
 
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