我有两台服务器
两个服务器都有相同的php内存限制128M的数据。
我的开发人员服务器运行的脚本很好，而在我的产品服务器上，我收到了一个致命错误：允许的内存大小134217728字节已耗尽（试图分配32字节）。。。
我的问题是，即使我的php memory_limits相同，我在prod环境中内存不足的其他原因是什么？
前言
PHP是运行在Apache[HTTPD服务器]之上的模块，它涉及到将PHP解释器与Web服务器发布的挂钩库链接
原因
Now it can exhaust due to scripts running allocating memory [RAM] & reach its threshold & get such errors.
Example big loops running & saving lots of data in memory which may over RUN the Memory
您可以进行的可能优化
memory_limit = 32M to your server's main php.ini file (recommended, if you have access)
php_value memory_limit 32M in your .htaccess file in the
这些是针对内存不足的页面的一些解决方案
ini_set('memory_limit', '-1'); overrides the default PHP memory limit (On individual php pages wherever you need extra memory)
您还可以在HTTP服务器（apache.conf或HTTP.conf）上进行一些优化
RLimitCPU,RLimitNPROC, RLimitMEM parameters can be adusted
由于内存不足，您可以调整RLimitMEM
Syntax: RLimitMEM soft-bytes [hard-bytes]
Example: RLimitMEM 1048576 2097152
This directive sets the soft and hard limits for maximum memory usage of a process in bytes. It takes one or two parameters. The first parameter sets the soft resource limit for all processes. The second parameter sets the maximum resource limit. Either parameter can be a number, or ``max'', which indicates to the server that the limit should match the maximum allowed by the operating system configuration. Raising the maximum resource limit requires the server to be running as the user ``root'' or in the initial start-up phase.
您也可以将这些行放在.htaccess文件中[因为在共享主机中，您无法访问php.ini和http.conf文件