The PHP bytecode (opcode) cache is used to store the compiled script bytecode in shared memory so that it can be re-used by PHP engine for subsequent executions of the same script.

• 在PHP字节码（码）缓存用来存储在共享内存的字节码编译的脚本，以便它可以重新通过PHP引擎，用于相同的脚本随后的执行。