Manuel PHP Dans le coeur de PHP : Guide du Hacker Zend Engine 2 Opcodes Opcode Descriptions and Examples BW_AND BRK BW_NOT BW_AND PHP code <?php/* * Bit-wise and of value1 and value2 * opcode number: 10 */echo 1&2;?> PHP opcodes Function name: (null) Compiled variables: none line#op fetchextreturn operands 60 BW_AND ~0 1,2 1 ECHO ~0 72 RETURN 1