diff options
Diffstat (limited to 'system/database/DB_driver.php')
| -rw-r--r-- | system/database/DB_driver.php | 39 |
1 files changed, 19 insertions, 20 deletions
diff --git a/system/database/DB_driver.php b/system/database/DB_driver.php index 371b6db96..f848cfe4e 100644 --- a/system/database/DB_driver.php +++ b/system/database/DB_driver.php @@ -1157,29 +1157,28 @@ abstract class CI_DB_driver { */ protected function _get_operator($str) { - static $_operators = array( - '\s*(?:<|>|!)?=\s*', // =, <=, >=, != - '\s*<>?\s*', // <, <> - '\s*>\s*', // > - '\s+IS NULL', // IS NULL - '\s+IS NOT NULL', // IS NOT NULL - '\s+BETWEEN\s+\S+\s+AND\s+\S+', // BETWEEN value AND value - '\s+IN\s*\([^\)]+\)', // IN(list) - '\s+NOT IN\s*\([^\)]+\)' // NOT IN (list) - ); + static $_operators; - static $_like = array( - '\s+LIKE\s+\S+', // LIKE 'expr' - '\s+NOT LIKE\s+\S+', // NOT LIKE 'expr' - ); - - if ($this->_like_escape_str !== '') + if (empty($_operators)) { - $_like[0] .= preg_quote(trim(sprintf($this->_like_escape_str, $this->_like_escape_chr))); - $_like[1] .= preg_quote(trim(sprintf($this->_like_escape_str, $this->_like_escape_chr))); - } + $_les = ($this->_like_escape_str !== '') + ? preg_quote(trim(sprintf($this->_like_escape_str, $this->_like_escape_chr))) + : ''; - $_operators = array_merge($_operators, $_like); + $_operators = array( + '\s*(?:<|>|!)?=\s*', // =, <=, >=, != + '\s*<>?\s*', // <, <> + '\s*>\s*', // > + '\s+IS NULL', // IS NULL + '\s+IS NOT NULL', // IS NOT NULL + '\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'] + ); + + } return preg_match('/'.implode('|', $_operators).'/i', $str, $match) ? $match[0] : FALSE; |