Manual de PHP El núcleo de PHP: Guía del Hacker Zend Engine 2 Opcodes Opcode Descriptions and Examples BW_NOT BW_AND BW_OR BW_NOT PHP code <?php/* * Bit-wise not of "value" * opcode number: 12 */echo ~15;?> PHP opcodes Function name: (null) Compiled variables: none line#op fetchextreturn operands 60 BW_NOT ~0 15 1 ECHO ~0 72 RETURN 1