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fix: correct LIKE ESCAPE backslash escaping causing MySQL syntax error #4180

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Merged
thorsten merged 3 commits into from
Apr 16, 2026
+8 −8
Merged

fix: correct LIKE ESCAPE backslash escaping causing MySQL syntax error #4180

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a1a0c0e
Initial plan
Copilot Apr 15, 2026
f25c119
fix: SQL syntax error with LIKE ESCAPE clause - use double backslash …
Copilot Apr 15, 2026
b4c951f
fix: use pipe character as LIKE ESCAPE to work across all databases
Copilot Apr 15, 2026
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2 changes: 1 addition & 1 deletion phpmyfaq/src/phpMyFAQ/Search.php
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Original file line number Diff line number Diff line change
Expand Up @@ -249,7 +249,7 @@ private function searchCustomPages(string $searchTerm, bool $allLanguages = true
// Escape LIKE metacharacters (%, _) to prevent wildcard injection
$escapedWord = str_replace(['\\', '%', '_'], ['\\\\', '\\%', '\\_'], $word);
$searchConditions[] = sprintf(
"(page_title LIKE '%%%s%%' ESCAPE '\\' OR content LIKE '%%%s%%' ESCAPE '\\')",
"(page_title LIKE '%%%s%%' ESCAPE '\\\\' OR content LIKE '%%%s%%' ESCAPE '\\\\')",
$escapedWord,
$escapedWord,
);
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2 changes: 1 addition & 1 deletion phpmyfaq/src/phpMyFAQ/Search/Database/PdoPgsql.php
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Expand Up @@ -74,7 +74,7 @@ public function search(string $searchTerm): mixed
FROM
%s %s %s %s
WHERE
(%s) ILIKE ('%%%s%%') ESCAPE '\\'
(%s) ILIKE ('%%%s%%') ESCAPE '\\\\'
%s
%s",
$columns,
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2 changes: 1 addition & 1 deletion phpmyfaq/src/phpMyFAQ/Search/SearchDatabase.php
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Expand Up @@ -264,7 +264,7 @@ public function getMatchClause(string $searchTerm = ''): string
}

$where = sprintf(
"%s%s LIKE '%%%s%%' ESCAPE '\\'",
"%s%s LIKE '%%%s%%' ESCAPE '\\\\'",
$where,
$this->matchingColumns[$j],
self::escapeLikeWildcards($this->configuration->getDb()->escape($keys[$i])),
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6 changes: 3 additions & 3 deletions tests/phpMyFAQ/Search/SearchDatabaseTest.php
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Expand Up @@ -149,7 +149,7 @@ public function testGetMatchClause()
{
$this->searchDatabase->setMatchingColumns(['faqdata.author']);
$this->assertEquals(
" (faqdata.author LIKE '%Thorsten%' ESCAPE '\\')",
" (faqdata.author LIKE '%Thorsten%' ESCAPE '\\\\')",
$this->searchDatabase->getMatchClause('Thorsten'),
);
$this->assertIsString($this->searchDatabase->getMatchClause('Thorsten'));
Expand All @@ -159,7 +159,7 @@ public function testGetMatchClauseWithTwoSearchTerms()
{
$this->searchDatabase->setMatchingColumns(['faqdata.author']);
$this->assertEquals(
" (faqdata.author LIKE '%Thorsten%' ESCAPE '\\') OR (faqdata.author LIKE '%Rinne%' ESCAPE '\\')",
" (faqdata.author LIKE '%Thorsten%' ESCAPE '\\\\') OR (faqdata.author LIKE '%Rinne%' ESCAPE '\\\\')",
$this->searchDatabase->getMatchClause('Thorsten Rinne'),
);
$this->assertIsString($this->searchDatabase->getMatchClause('Thorsten'));
Expand All @@ -169,7 +169,7 @@ public function testGetMatchClauseWithTwoColumns()
{
$this->searchDatabase->setMatchingColumns(['faqdata.author', 'faqdata.thema']);
$this->assertEquals(
" (faqdata.author LIKE '%Thorsten%' ESCAPE '\\' OR faqdata.thema LIKE '%Thorsten%' ESCAPE '\\')",
" (faqdata.author LIKE '%Thorsten%' ESCAPE '\\\\' OR faqdata.thema LIKE '%Thorsten%' ESCAPE '\\\\')",
$this->searchDatabase->getMatchClause('Thorsten'),
);
$this->assertIsString($this->searchDatabase->getMatchClause('Thorsten'));
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