判断数据是否被序列化

Posted 2021-02-13 ningjiabing

function is_serialized( $data ) {
         $data = trim( $data );
         if ( ‘N;‘ == $data )
             return true;
         if ( !preg_match( ‘/^([adObis]):/‘, $data, $badions ) )
             return false;
         switch ( $badions[1] ) {
             case ‘a‘ :
             case ‘O‘ :
             case ‘s‘ :
                 if ( preg_match( "/^{$badions[1]}:[0-9]+:.*[;}]$/s", $data ) )
                     return true;
                 break;
             case ‘b‘ :
             case ‘i‘ :
             case ‘d‘ :
                 if ( preg_match( "/^{$badions[1]}:[0-9.E-]+;$/", $data ) )
                     return true;
                 break;
         }
         return false;
}