Fix #4086
diff --git a/system/database/DB_driver.php b/system/database/DB_driver.php
index 9c4d7e0..2fb70ac 100644
--- a/system/database/DB_driver.php
+++ b/system/database/DB_driver.php
@@ -1,4 +1,4 @@
-<?php
+=<?php
/**
* CodeIgniter
*
@@ -1480,18 +1480,18 @@
? '\s+'.preg_quote(trim(sprintf($this->_like_escape_str, $this->_like_escape_chr)), '/')
: '';
$_operators = array(
- '\s*(?:<|>|!)?=\s*', // =, <=, >=, !=
- '\s*<>?\s*', // <, <>
- '\s*>\s*', // >
- '\s+IS NULL', // IS NULL
- '\s+IS NOT NULL', // IS NOT NULL
- '\s+EXISTS\s*\([^\)]+\)', // EXISTS(sql)
- '\s+NOT EXISTS\s*\([^\)]+\)', // NOT EXISTS(sql)
- '\s+BETWEEN\s+\S+\s+AND\s+\S+', // BETWEEN value AND value
- '\s+IN\s*\([^\)]+\)', // IN(list)
- '\s+NOT IN\s*\([^\)]+\)', // NOT IN (list)
- '\s+LIKE\s+\S+'.$_les, // LIKE 'expr'[ ESCAPE '%s']
- '\s+NOT LIKE\s+\S+'.$_les // NOT LIKE 'expr'[ ESCAPE '%s']
+ '\s*(?:<|>|!)?=\s*', // =, <=, >=, !=
+ '\s*<>?\s*', // <, <>
+ '\s*>\s*', // >
+ '\s+IS NULL', // IS NULL
+ '\s+IS NOT NULL', // IS NOT NULL
+ '\s+EXISTS\s*\([^\)]+\)', // EXISTS(sql)
+ '\s+NOT EXISTS\s*\([^\)]+\)', // NOT EXISTS(sql)
+ '\s+BETWEEN\s+\S+\s+AND\s+\S+', // BETWEEN value AND value
+ '\s+IN\s*\([^\)]+\)', // IN(list)
+ '\s+NOT IN\s*\([^\)]+\)', // NOT IN (list)
+ '\s+LIKE\s+\S.*('.$_les.')?', // LIKE 'expr'[ ESCAPE '%s']
+ '\s+NOT LIKE\s+\S.*('.$_les.')?' // NOT LIKE 'expr'[ ESCAPE '%s']
);
}