php中設定記憶體的方法介紹

query_cache_size=32M
# The number of open tables for all threads. Increasing this value
# increases the number of file descriptors that mysqld requires.
# Therefore you have to make sure to set the amount of open files
# allowed to at least 4096 in the variable "open-files-limit" in
# section [mysqld_safe]
table_cache=256
# Maximum size for internal (in-memory) temporary tables. If a table
# grows larger than this value, it is automatically converted to disk
# based table This limitation is for a single table. There can be many
# of them.
tmp_table_size=5M

另外，再介绍下PHP设置运行时内存大小的方法。

如果在php程序运行时出现如下的错误： Fatal error: Allowed memory size of 20971520 bytes exhausted (tried to allocate 7325604 bytes) in …（可用的内存为20971520 bytes,尝试分配。。。） 则说明运行时分配的内存不够，此时需要增加支撑php运行的内存了。

解决办法： 一、在php程序里动态分配内存

@ini_set(‘memory_limit’,’60M‘); //修改60M

二、php.ini 中配置

memory_limit = 20M //修改 20M

就介绍这些了，记得老板曾说过一句话，我相信你们的技术水平，如果遇到非常难以解决的问题，就适当发挥硬件的优势吧，哈哈，那就加内存，加Cpu，或者上更高配置机器吧。