Fix potential null issue in rawAddPrefix method

CassianoRafael · web-flow · commit 2f5d7f2b0ede · 2023-09-15T14:46:52.000-03:00
diff --git a/MysqliDb.php b/MysqliDb.php
@@ -556,6 +556,10 @@ public function rawAddPrefix($query){
         preg_match_all("/(from|into|update|join|describe) [\\'\\´]?([a-zA-Z0-9_-]+)[\\'\\´]?/i", $query, $matches);
         list($from_table, $from, $table) = $matches;
 
+        // Check if there are matches
+        if (empty($table[0]))
+            return $query; 
+
         return str_replace($table[0], self::$prefix.$table[0], $query);
     }
 

Original file line number	Diff line number	Diff line change
`@@ -556,6 +556,10 @@ public function rawAddPrefix($query){`
`556`	`556`	`preg_match_all("/(from\|into\|update\|join\|describe) [\\'\\´]?([a-zA-Z0-9_-]+)[\\'\\´]?/i", $query, $matches);`
`557`	`557`	`list($from_table, $from, $table) = $matches;`
`558`	`558`
	`559`	`+ // Check if there are matches`
	`560`	`+ if (empty($table[0]))`
	`561`	`+ return $query;`
	`562`	`+`
`559`	`563`	`return str_replace($table[0], self::$prefix.$table[0], $query);`
`560`	`564`	`}`
`561`	`565`