linux下PHP写入和读取单个文件建议不超过多大?
linux下PHP写入和读取单个文件建议不超过多大?
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linux下PHP写入和读取单个文件建议不超过多大?
这个没有固定答案.
比如你要经常读取文件(大小均可),放在/dev/shm/下,这个将文件直接放在了内存,速度很可观.
PHP读取大文件的话,我想到几种方法
1.file_get_contents 不能用,直接将文件内容放入一个字符串,而且一般php.ini里面有限制当前进程占用内存大小.
2.按行读取
3.指针.PHP是用C语言实现的,fseek(),给一个当前文件的偏移量(byte),直接跳过了前面,而且可以设置从文件结尾后往前的偏移
4.Linux命令行

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