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Bug #34837 sqlite_escape_string() fails to escape double quotes correctly
Submitted: 2005-10-12 12:28 UTC Modified: 2005-10-12 12:50 UTC
Avg. Score:5.0 ± 0.0
Reproduced:0 of 0 (0.0%)
From: veter at oxarchdigital dot com Assigned:
Status: Wont fix Package: SQLite related
PHP Version: 5.1.0RC1 OS: Win32
Private report: No CVE-ID: None
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From: veter at oxarchdigital dot com
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 [2005-10-12 12:28 UTC] veter at oxarchdigital dot com
sqlite_escape_string() replaces single quotes fine (' becomes ''), whilst it fails to replace double quotes, which are still used in some odd SQL code, and which are confusing SQLite. Should there be another optional parameter selecting which quotes to escape?

Reproduce code:
$sValue = sqlite_escape_string('This string contains "double quotes"');
// Note " not ' used in this SQL statement!
$sQuery = 'INSERT INTO testtab(testfld) VALUES("' . $sValue . '")';
sqlite_query($linkID, $sQuery);

Expected result:
Successful INSERT operation

Actual result:
SQL failure


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 [2005-10-12 12:50 UTC]
sqlite_escape_string() is just wrapper for sqlite_mprintf("%q", string) call.
In SQLite v2 this call doubles only single quotes, while in SQLite v3 it doubles ",' and \.
I don't think sqlite_escape_string() will change ever, mostly for BC reasons.
SQLite v3 is supported by pdo_sqlite. 
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